Questions Asked on
October 22, 2012

Ratios of Similar Figures
1. Write the following ratio in simplest form: 32 min : 36 min a. 8 : 9 b. 8 : 36 c. 32 :9 d. 128 : 144 2. In a sports equipment locker, there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball mitts in simplest form. a. 9 : 5 b. 10 :
asked by Jman 
College Algebra
The concentration C of a certain drug in a patient's bloodstream t minutes after injection is given by C(t)=50t/t^2+25. Determine the time at which the concentration is highest. Round your answer to the nearest tenth of a minute.
asked by Rene 
Physics
An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale
asked by Amelia 
Physics
A girl is skipping stones across a lake. One of the stones accidentally ricochets off a toy boat that is initially at rest in the water (see the drawing below). The 0.094kg stone strikes the boat at a velocity of 14 m/s, 15° below due east, and ricochets
asked by Elizabeth 
math
A right triangle is formed in the first quadrant by the x and yaxes and a line through the point (2,3). Draw a figure that illustrates the problem. What is the area of the triangle A as a function of the xintercept of the line?
asked by sarah 
physics
A crate pushed along the floor with velocity \vec{v} _{i} slides a distance d after the pushing force is removed.If the mass of the crate is doubled but the initial velocity is not changed, what distance does the crate slide before stopping?
asked by nhan 
physics
A solid sphere of mass 0.604 kg rolls without slipping along a horizontal surface with a translational speed of 5.25 m/s. It comes to an incline that makes an angle of 38 with the horizontal surface. Neglecting energy losses due to friction, (a) what is
asked by Camille 
Physics
In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer space. From stationary positions they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of −2.7 m/s. (b) Determine the
asked by Elizabeth 
Physics
Compute the angular momentum of the earth arising from the following motions. (a) Earth's orbital motion around the sun. (b) Earth's rotation on its axis.
asked by Pat 
Chemistry I
In determining the heat capacity of a calorimeter, 50ml of water at 56*C is added to 50ml of water at 23*C. After about five minutes of mixing, the final temperature of the solution inside the calorimeter reached 37*C. Calculate the heat capacity of the
asked by Josh 
physics
A car moving 30m/s slows uniformly to a speed of 10 m/s in a time of 5 sec determine 1) the acceleration of the car 2) the distance it moved in 3 sec
asked by Equality 
Math
Julie is digging a square area in her backyard for a vegetable garden. If the area is 52 square feet, what is the approximate length of one side of her garden? 6 square feet 7 square feet 8 square feet 9 square feet 7 square feet is my answer, what's
asked by Math 
algebra
can anyone please help me set this problem up, I can do the math but I have tried for hours... Air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space
asked by dino 
soicial studys help plz
1. Who was the French absolute monarch who called himself the "Sun King" to show that he was the center of the French nation? (1 point)Cardinal Richelieu Louis XIII Louis XIV Versailles 2. The Elizabethan Age was considered a golden age due to all of the
asked by all about me 
Gen Chem
epsom salts, household ammonia, and rubbing alcohol are also consumer chemicals that could be used in this experiment. what are the chemical formulas for these substances?
asked by Andrea 
math
Write a number sentence for the model. Let one white tile equal +1 and one black tile equal –1. A. –14 – (–6) = –8 B. 14 – 6 = 8 C. –14 – 6 = –8 D. –14 – (–6) = 8 i put d but it was rong
asked by chris 
Physics
An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N
asked by Jessica 
Physics
the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied to the lever and
asked by Owen 
Physics
A current of 60 mA passes through a loudspeaker of resistance 6 Ω. What is the potential difference across the resistance of the loudspeaker? 36.0 V 10.0 V 0.36 V 0.10 V Answer B seems like it would be the obvious answer..
asked by Jane 
Physics
An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N
asked by Amelia 
Physics
A dentist causes the bit of a highspeed drill to accelerate from an angular speed of 1.20 104 rad/s to an angular speed of 3.14 104 rad/s. In the process, the bit turns through 1.92 104 rad. Assuming a constant angular acceleration, how long would it take
asked by Sam 
Physics
A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron? 1:2 1:3 2:1 3:1 I would think A, but
asked by Physics Failure 
algebra 1
top and bottom margins are 7/8 inch there are 5 rows of pictures with 3/16 inch between the vertical what would be the height of each picture
asked by jane 
trig
Show that the height, h, of the Aframe is equal to the expression 5sinc(1+2cosc). Im not sure what to do.
asked by mike 
Physics
Which of the following is correct for a stepdown transformer? Number of turns in the primary coil is less than the number of turns in the secondary coil. Stepdown transformer increases the voltage from low value to high value. Number of turns in the
asked by Liam 
Physics
An electric kettle operates at 110V. What is the resistance of the kettle if the power is 1.5kW? 8.1 Ω 1.4 Ω 81 Ω 14 Ω I'm stuck between A and B
asked by Fleur 
Algebra 2 Please Help
21. A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after burning 8 hours. (2 points)
asked by Robert 
math
air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by $2 for every member. Due to space limits only 125 passengers will be allowed. how many memberships will maximize the revenue?
asked by dino 
Physics
A volleyball is spiked so that its incoming velocity of +3.6 m/s is changed to an outgoing velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What impulse does the player apply to the ball? Answer will be in kg*m/s
asked by Elizabeth 
geometry
The volume of a sphere is 4,000 m3. What is the surface area of the sphere to the nearest square meter?
asked by Anonymous 
Precalculus
cotxcos^(3)xcscx
asked by Sophia 
Chemistry
The rate constant for a certain reaction is k=8.90×10^−3 s^1. If the initial reactant concentration was 0.400M, what will the concentration be after 13.0 minutes?
asked by Tasnim 
math
Name a number that can be evenly divided by 6 and 7
asked by Janiya 
calculus
A health club offers memberships at the rate of $300, provided that at least 50 people join. For each member in excess of 50, the membership fee will be reduced by $2 for all members. Due to space limitations, at most 125 memberships will be sold. How many
asked by dino 
Physics
By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor, with v1 = 2.75 m/s and v2 = 1.65 m/s. As the plate falls, its momentum has only a vertical component, and no component parallel to the floor.
asked by Elizabeth 
physics
A human hair is approximately 55 µm in diameter. Express this diameter in meters. Answer in units of m
asked by Karen 
physics
A man claims he can safely hold on to a 14.20 kg child in a headon collision with a relative speed of 132. mi/h lasting for 0.100 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child
asked by Anonymous 
mba
the price p per unit at which a company can sell all that it produces is given by the function p(x) = 3004x. the costs function is c(x) = 500+28x where x is the number of units produced. find x so that the profit is maximum
asked by viji 
physics
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? The length of the rod will become exactly half of its original value. The length of the rod remains the same.
asked by laurie 
Chemistry
Calculate the number of carbon atoms in 0.75 L of acetone (CH3COCH3). (density=1.3g/mL and boiling point=48.5 degrees)
asked by Erin 
physics
A particle of mass 0.350 kg is attached to the 100cm mark of a meter stick of mass 0.175 kg. The meter stick rotates on a frictionless, horizontal table with an angular speed of 6.00 rad/s. (a) Calculate the angular momentum of the system when the stick
asked by Karrine 
statistics
According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Suppose 150 flights are randomly selected. Find the probability that few than 125 flights are on time.
asked by sharon 
Chemistry
Why is a Gas Chromatography separation more efficient than a fractional distillation? What characteristics must the liquid stationary phase have? describe a method for identifying a compound using GC analysis. If you could answer anyone of these that would
asked by Garet 
physics
A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate
asked by souleymane 
Physics
An elastic collision occurs between two pucks on an airhockey table. Puck A has a mass of 0.025 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.060 kg and is initially at rest. The
asked by Sam 
CHEMISTRY
Not for homework, just practice problems I'm having trouble with. Knowing that one mole of KHP, C8H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralize 30.0 mL of the 0.10 M NaOH solution? if 24.5 mL of the 0.10 M NaOH solution is
asked by Kimberly 
math
Chelsie saves 1/5 of her allowance and spends 2/3 of her allowance at the mall. What fraction of her allowance remains?
asked by nathan 
physics
John runs at 4.6 m/s for 7.53 s along the x axis. How far does John run? Answer in units of m AND What relationship should be used to solve this situation? 1. x = v − t 2. x = v t 3. x = v + t 4. None of these 5. x = v
asked by Sadie 
Chemistry
1.05 g of an unknown gas at 47 °C and 1.05 atm is stored in a 2.25L flask. Density of the gas= 0.47g/L What is the molar mass of the gas?
asked by Vid 
history 103
Summarize the major factors that allowed the Incas to conquer and rule their large empire. Some suggest that, in many ways, the Incas were like the Romans or other PreColumbian American Civilizations. Evaluate whether they were more similar or different,
asked by lucille 
Statistics
A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the regression equation? a. 8/10 b. 8/20 c. 10/8 d. 20/8 For the regression equation, Y=bX+a, which of the following X,Y points will be on the regression line? a. a,b b. b,a c. 0,
asked by Robbie 
Physics
Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω resistor? 5 V 10 V 15 V 20 V I would think the answer would be B, or 15V
asked by Fleur 
physics
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary. You need your projectile to land 214 m from its launch point. What
asked by Lopez 
Organic chem
What gases escaped during the sodium bicarbonate washing for the preparation of Synthetic Banana Oil lab. The isopentyl acetate, acetic acid, isopentyl alcohol, sulfuric acid, water , byproducts goes through the sodium bicarbonate wash and the organic
asked by Vai 
Chemistry 103
2NiO(s)→2Ni(s)+O2(g) If O2 is collected over water at 40.0C and a total pressure of 739mmHg , what volume of gas will be collected for the complete reaction of 24.18g of NiO?
asked by YeJi Lee 
check my precalc
#1. (3x^34x^23x+4)/(x^35x) my answers: yint: NONE xint: 1, 1, and 4/3 x asymtope: x= 0 and + square root of 5 y asym: y=3 If it crosses horiz asym: idk i need help on this #2. (x^47x^2+12)/(x^25x+4) xint: 2, 2, and + square root of 3 yint: 3
asked by Rebekah 
Chemistry
A student starts with 25 grams of sodium chloride as the limiting reactant and obtained 17.9 grams of dry pure sodium carbonate. What is the theoretical yield of sodium carbonate? What is the percent yield obtained by the student?
asked by JaRad 
math
sharon is diving her green and blue rock collection into bags. Each bag will contain the same number of each color of rock. How many rocks of each color will be in each bag? there are 16 green marbles and 24 blue
asked by Anonymous 
Chemistry
Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = 118 kJ Calculate the heat when 103.6 mL of 0.500 M HCl is mixed with 300.0 mL of 0.550 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0°C and
asked by Bailey 
physics
A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate
asked by souleymane 
Physics
A 0.014 kg bullet is fired straight up at a falling wooden block that has a mass of 4.0 kg. The bullet has a speed of 760 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t
asked by Elizabeth 
PHYSICAL SCIENCE
How do the pressure variation with depth affect our ability to explore the ocean?
asked by SHEILA 
Physics
John's mass is 92 kg, and Barbara's is 67 kg. He is standing on the x axis at xJ = +7.50 m, while she is standing on the x axis at xB = +2.50 m. They switch positions. How far and in which direction does their center of mass move as a result of the switch?
asked by Elizabeth 
math
grant's change rack contained $8.80 in quarters, dimes, and nickels. There were two more than five times as many nickels as quarters and four less than twice as many dimes as quarters. How many of each kind of coin was there in the change rack? please help
asked by k 
word problem
jonah and his,friends go apple picking. jonah fills 5 baskets. each basket holds 15 apples. if 4 of jonahs friends pick the,same amount, how many apples do jonah and his friends pick in all? please solve,the problem.
asked by stephie 
Algebra
Quick question. The sum of two numbers is 48. One number is 3 times as large as the other. What are the numbers?
asked by MorganV 
physics
Two artifacts in a museum display are hung from vertical walls by very light wires, as shown in the figure.Find the tension in the horizontal wire ifw=158Nandm=30.0 kg.
asked by Anonymous 
Physical Science
How much heat is absorbed by pouring 10 grams of 100°C liquid water on a student’s hand. The water is cooled to body temperature, 37°C. Assume that all of the heat is absorbed by the hand
asked by Kayden 
Math
Cutting a circle into equal sections of a small central angle to find the area of a circle by using the formula A=pi*r*r
asked by Shubhi 
cis210
Assignment 1: Inventory Management Systems Due Week 2 and worth 100 points Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She
asked by chea 
physics
two kids push on a 10kg box. one pushes 100N to the west and the other pushes north at 200N. what is the acceleration of the pbject?
asked by me 
Chemistry
A student starts with 25 grams of sodium chloride as the limiting reactant and obtained 17.9 grams of dry pure sodium carbonate. What is the theoretical yield of sodium carbonate? What is the percent yield obtained by the student?
asked by JaRad 
Physics
Suppose there are two transformers between your house and the highvoltage transmission line that distributes the power. In addition, assume your house is the only one using electric power. At a substation the primary of a stepdown transformer (turns
asked by Busker 
Chemistry 9
a) A 2.56 balloon contains 3.66 g of gas. Find the density b) A 45.3 g sample placed in a graduated cylinder causes the water level to rise from 25.0 mL to 41.8 mL . Find the density
asked by Seastone 
physics
A 58.4kg person, running horizontally with a velocity of +3.84 m/s, jumps onto a 10.7kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (Indicate the
asked by Lindsay 
Physics
The maximum current in an AC circuit is 3.0 Amperes. What is the rms value of the current in the AC circuit? 0.5 A 2.1 A 3.0 A 4.2 A I would think D...
asked by I'm on anon 
Math
On a standardized test, Phyllis scored 84, exactly one standard deviation about the mean. If the standard deviation for the test is 6, what is the mean score for the test?
asked by Tanyetta 
Physics
A jet is circling an airport control tower at a distance of 23.0 km. An observer in the tower watches the jet cross in front of the moon. As seen from the tower, the moon subtends an angle of 9.49 103 radians. Find the distance traveled (in meters) by the
asked by Lindsay 
math
A box contains 55 balls numbered from 1 to 55. If 15 balls are drawn with replacement, what is the probability that at least two of them have the same number?
asked by Anonymous 
math
Morgan Company received from Lee Company an invoice dated September 27. Terms were 210 EOM. List price on the invoice was $5000.00(freight not included). Morgan receives a 9/7 chain discount. Freight charges are Morgans resposibility but Lee agreed to
asked by natasha 
Physics
:'( Please help me....? (7 points) 2. Contrast the metric units of distance, time, and speed. Describe the relationship between them. Answer: (11 points) 3. A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of
asked by Gabriella 
Physics help PLZ!!
Estimate the energy required from fuel to launch a 1465 kg satellite into orbit 1375 km above the Earth’s surface. Consider two cases: (a) the satellite is launched into an equatorial orbit from a point on the Earth’s equator, and (b) it is launched
asked by Sarah 
physics
If the height of the water slide in the figure is h = 2.8 m and the person's initial speed at point A is 0.47 m/s, what is the new horizontal distance L between the base of the slide and the splashdown point of the person?
asked by kathy 
Science Help!
How much heat is needed to cause the following irreversible reaction? 200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C
asked by LeAnna 
Punctuation and period
Commas are used to set off _____ phrases. A) essential B) nonessential I answered nonessentials
asked by Marie 
physics
A car moving 30m/s slows uniformly to a speed of 10 m/s in a time of 5 sec determine 1) the acceleration of the car 2) the distance it moved in 3 sec
asked by Equality 
chemistry 20 MC questions
1 The equipment needed to carry out a titration is: A) hot plate, pipet, and filter paper B) heat source, test tube, and filter paper C) heat source, pipet, and burette D) erlenmeyer flask, pipet, and burette 2 A student correctly predicted that 10.0 g
asked by memo 
Physics
A 1.08 kg skateboard is coasting along the pavement at a speed of 4.60 m/s when a 1.19 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboardcat combination?
asked by Angela 
Physics
Three resistors having the same resistance value are wired in parallel. How does the equivalent resistance compare to the resistance value of a single resistor? The equivalent resistance is thrice the value of a single resistor. The equivalent resistance
asked by BoBo 
Algebra
2 cyclists travel opposite on circular trail that is 5 miles long. one cyclist travels 12 miles per hour, the other travels 18 miles per hour. How long before they meet?
asked by Anonymous 
physics
A 81.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 28.0 m/s. If the player was moving upward with a speed of 4.40 m/s just before impact. (a) What will be the speed of the ball
asked by Anonymous 
physics
A child rides a toboggan down a hill that descends at an angle of 15.5 ◦ to the horizontal. The hill is 13.8 m long. What is the horizontal component of the child’s displacement? Answer in units of m 013 (part 2 of 2) 10.0 points What is the vertical
asked by Anonymous 
history 103
The voyages of Zheng He reveal a powerful, accomplished, and restored Confucian state and civilization in China that was at least equal to, but very different from, emerging early modern Western civilization. List and describe the major factors that made
asked by lucille 
Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go
asked by Sam 
chemistry
onic compounds have names that... (choose all that apply) might contain Roman numerals. might start with ammonium. start with the name of an anion. have prefixes, like di or penta. start with the name of a nonmetal.
asked by Mary 
Math
Which Statements of congruence are true and which are false and why? 177 _= 17 (mod 8) 871 _= 713 (mod 29) 1322 _= 5294 (mod 12) 5141 _= 8353 (mod 11) 13944 _= 8919 (mod 13) 67 x 73 _= 1 x 3 (mod 5) 17 x 18 x 19 x 20 _= 4! (mod 8) 83 (144 power) _= 15 (144
asked by Jimmy 
social study help plz
3. Like many absolute monarchs before him, Peter the Great strengthened his own power by limiting the power of Russian (1 point) priests. nobles. peasants. women.
asked by all about me 
CHEMISTRY
Explain Why The Addition Of An Electron To A Chlorine Atom Is An Exothermic Process And The Addition Of An Electron To A Magnesium Atom Is An Endothermic Processs
asked by ALEX 
physics
The human brain consumes about 23.7 W of power under normal conditions, though more power may be required during exams. How long can one candy bar (332 Calories per bar) power the normally functioning brain? (Note: The nutritional Calorie is equivalent to
asked by kay 
Physics
007 (part 1 of 2) An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 008 (part 2 of 2) If the same elevator
asked by Amelia 
Physics
007 (part 1 of 2) An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 008 (part 2 of 2) If the same elevator
asked by Jessica 
Physics
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 92.5 kg. The mass of the rock is 0.310 kg. Initially the wagon is rolling forward at a
asked by Elizabeth 
Physics
An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale
asked by Courtney 
geometry
The volume of 2 similar solids are 27 ft3 and 216 ft3. The surface area of the larger solid is 300 ft2. What is the surface area of the smaller solid? Round your answer to the nearest tenths place
asked by Anonymous 
science
These are the 3 questions that will help me study for my test. i need help understanding each of these thankyou :) Distinguish between microevolution and macroevolution. Explain how forest organisms (producers and consumers) separated by a highway could
asked by Kevin 
physics
A hydrogen atom has a diameter of about 10.1 nm. Express this diameter in meters, millimeters, and micrometers.
asked by Katie 
physical science
how much heat is absorbed by pouring 10 grams of 100 degree C liquid water on a students hand. The water is cooled to body temperature 37 degree C
asked by Anon 
collegemathwordproblem
One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?
asked by Angel 
Algebra 2 Please Help
22. The graph of g(x) is f(x) translated to the left 8 units and up 2 units. What is the function rule for g(x) given f(x) = x²? (2 points)
asked by Robert 
calculus
A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 24 ft/s. a.) At what rate is his distance from second base decreasing when he is halfway to first base? b.) At what is his distance from third
asked by Dominic 
Punctuation
Select the correctly punctuated sentence. A) He arrived at the hospital with a heavily, bleeding gunshot wound. B) He arrived at the hospital with a heavily bleeding, gunshot wound. C) He arrived at the hospital with a heavily bleeding gunshot wound. I
asked by Marie 
Physics
A 42.4kg boy, riding a 2.29kg skateboard at a velocity of +5.37 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.30 m/s, 9.09° above the
asked by Elizabeth 
Calculus
Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(3.23x105h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that
asked by Andy 
physics
A 81.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 28.0 m/s. If the player was moving upward with a speed of 4.40 m/s just before impact. (a) What will be the speed of the ball
asked by Anonymous 
Can comeone check my answer for me. Many Thanks!
A set of data is normally distributed with a mean of 1000 and standard deviation of 100. · What would be the standard score for a score of 1100? · What percentage of scores is between 1000 and 1100? · What would be the percentile rank for a score of
asked by Ashley S 
lens surface
 a spherical generator is used to produce a 15.00D surface on glass of refractive index 1.80. The diameter of the cutting tool is 80mm and the radius of the cutting surface is 4 mm. What is the angle between the axis of the tool and the axis of the lens?
asked by Anonymous 
Physics
A 5.9 g coin sliding to the right at 27.6 cm/s makes an elastic headon collision with a 17.7 g coin that is initially at rest. After the collision, the 5.9 g coin moves to the left at 13.8 cm/s. (a) Find the final velocity of the other coin. (b) Find the
asked by Angela 
physics
Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.
asked by anthony 
Chemistry
lime, Ca(OH)2 can be used to neutralize an acid spill.A 5.06g sample of Ca(OH)reacts with excess of hydrochloric acid:6.74 g of calcium chloride is collected what is the percent yield of this experiment Ca(OH)2 + 2HCI ====> CaCl2 + 2H2O
asked by Dimitri 
Physics
A car traveling in a straight line has a velocity of 6.64 m/s at some instant. After 5.55s, its velocity is 10.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s
asked by Reece 
Math
3.4t+0.08=11
asked by Josh 
Phys Please Help!!
Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.
asked by anthony 
input/output tables
I have a blank table to fill in.It says divide m by 3 m÷3
asked by paige 
Math
Monday, Mr. C stacked a display case of 80 heads of lettuce. By end of day, some were sold. Tuesday Mr. C counted lettuce left and decided to add an equal number of lettuce (**hint  he doubled the leftovers). At end of Tuesday, he sold the same number
asked by John 
physics
When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm
asked by justin 
Punctuation
Select the correctly punctuated sentence. A) Depression, often a genetic disorder, can be safely treated with medication. B) Depression, often a genetic disorder can be safely treated with medication. C) Depression often a genetic disorder can be safely
asked by Marie 
Abnormal Psychology
In the “strange situation” attachment assessment technique, children with Down syndrome A. display significant distress upon separation. B. readily reach to strangers for comfort. C. show few distress signals despite an apparent need for contact with
asked by Felicia 
science
you are sledding on a snowcovered hill at a speed of 6 m/s there is a drop that increases your speed to 12 m/s in 4 s. find your acceleration? i need help answer?
asked by dem 
math
33x650x43
asked by pedro 
xeco/212
Wall Street Journal in which economists are quoted using positive and normative statements. o Provide one quote and its context for both a positive and normative statement. Explain your choices. o Evaluate the statement choices of your fellow students.
asked by Eanice Dye 
physics
When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm
asked by justin 
Math
$175,000 loan with 6% fixed apr over 15 years. How much would the payment be?
asked by Misty 
geometry
A swimming pool is 3 ft deep in the shallow end the bottom of the pool has a steady downward drop of 12 degrees if the pool is 50 feet long how deep is the deepest end?
asked by h 
algebra
a barrel contains 163 gallons of water and is being drained at a constant rate of gallons per hour write an equation that models the number of gallons g after t hours
asked by tina 
Physics
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.015 kg, and its velocity is +726 m/s. Her
asked by Elizabeth 
Chemistry
In the theoretical reaction 2 B(aq) + 3 D(aq) > E(aq) + 4 F(aq) the concentration of D(aq) is 0.40 mol/L. If 25.0 mL of aqueous B is needed to react completely with 30.0 mL of aqueous D, the concentration of B(aq) is A0.48 mol/L B) B0.32 mol/L C)
asked by mem 
Physics
Why is it necessary to collimate the light source before using the prism to disperse the light? A. If white light enters the prism with different angles, some of the blue light will exit the prism with the same angle as the orange light. B. If white light
asked by Kyle 
physics
A 16.0 g bullet is fired horizontally into a 87 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 168 N/m. The bullet becomes embedded in the block. The bullet block system
asked by Anonymous 
Math Calculus 2
At a certain instant an aircraft flying due east at 240 miles per hour passes directly over a car traveling due southeast at 60 miles per hour on a straight, level road. If the aircraft is flying at an altitude of .5mile, how fast is the distance between
asked by Steven 
Math
A shaded area reprsents approximately 95% of the scores on a standardized test. If these scores ranged from 78 to 92, whic could be the standard deviation?
asked by Tanyetta 
Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go
asked by Sam 
geometry
A square pyramid has base edges 10 in. long and a height of 4 in. Sketch the pyramid and find its surface area. Round your answer to the nearest tenth
asked by Anonymous 
phys!!! how do you do this
Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.
asked by anthony 
chemistry
What is the chemical formula of the compound that forms between lithium (Li) and phosphorus (P)?
asked by Mary 
Physics
How much heat must be removed from 500 grams of water at 0 degrees C to form ice at 0 degrees c?
asked by Anon 
English
essy in mockingbird how Caitlin over Family struggle abput 700 word see example of different essay
asked by phill 
language
what does scv, s, f, and scs mean when identifying sentences?
asked by cunningham 
Chemistry 20 titration
1) oi50 . tinypic . com / ejh6vm . jpg The most suitable indicator for the titration is: A)methyl violet B)chlorophenol red C)methyl orange D)phenolphthalein 2A base is titrated with an acid solution until the indicator changes colour. This change in the
asked by Rock 
PHYSICS
When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm.
asked by Clarissa 
Physics
A railroad car with a mass of 1.86 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.40 m/s. (a) What is the speed of the three joined
asked by Angela 
organic chemistry
a careless organic chemistry student was performing "competing nucleophiles in nucleophilic substitution reactions" experiment , and left his container of tertbutyl chloride and tertbutyl bromide open to the air for several hours. what happened to the
asked by lyly 
chemistry
Is this equation correctly balanced? If not why. Al2S3+H2O> Al2S3+3H2O>Al2(SO)3+3H2
asked by What? 
Punctuation
Select the correctly punctuated sentence. A) No, I do not agree with that diagnosis. B) No I do not agree with that diagnosis. C) No I do not agree, with that diagnosis. My answer is A
asked by Marie 
Punctuation
Select the two (2) correctly punctuated sentences. A) I also explained antepartum fetal surveillance, i.e., fetal heart rate monitoring and assessment of amniotic fluid volume. B) I also explained antepartum fetal surveillance, i.e. fetal heart rate
asked by Marie 
Algebra 1
Find the final amount of an investment if $2,000 is invested at an interest rate of 8% compounded quarterly for eight years. Please and thank you! I`ve been having so much trouble with this question. Thank you!
asked by Casey 
business English
16. Which of the following would be the best revision of these sentences? "Our present receivables are in line with last year's. However, they exceed the budget. The reason they exceed the budget is that our goal for receivable investment was very
asked by kesha 
physics
When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm
asked by justin 
prealgebra
0.85km/s=m/min
asked by anthony 
Science
How much heat must be removed from 500 grams of water at 0°C to form ice at 0°C?
asked by Michael 
chemistry
How many grams of solid potassium hydroxide are needed to exactly neutralize 10.8 mL of a 1.25 M hydrobromic acid solution
asked by Kaitlin 
Punctuation
Select the correctly punctuated sentence. A) Dr. Christiaan Barnard, who performed the first heart transplant, is a wellknown cardiologist. B) Dr. Christiaan Barnard, who performed the first heart transplant. Is a wellknown cardiologist. C) Dr.
asked by Marie 
Punctuation and period
The most commonly used mark of punctuation is the _____ A) comma B) period I answered B
asked by Marie 
Punctuation
Select the correctly punctuated letter closing. A) Very sincerely yours, Joseph Blow, President B) Very sincerely yours, Joseph Blow President C) Very sincerely yours Joseph Blow, President I answered A
asked by Marie 
chemistry
Will a fluoride concentration of 1.0 mg/L be soluble in a water containing 200 mg/L of calcium? I got Qsp 1.38 * 10^8 and Ksp = 3.45*10^11 does that seem right? and does this mean fluride concentration will be soluble in water containing calcium?
asked by John 
science
A balloon with an initial volume of 2.8L at a temperature of 296K is warmed to 375K . What is its volume at the final temperature? (Assume constant pressure.)
asked by michelle 
chemistry
how many moles of NaBr are produced from reacting 20.05 moles of AuBr3 with excess NaCN? AuBr3 +NaCN > Au(CN)3 + NaBr
asked by jim 
PreCal
State the transformations. Identify holes, vertical asymptotes, and horizontal asymptotes of each. (I'm fine with the asymptotes, just need help with stating the trandformations) f(x)= (3x+9)/(x+2)
asked by Carson 
math
if you have a 6 foot long board and it's cut into 4/5 pieces how many pieces can you have a what portion of the board is left over
asked by deanna 
englishdr.faustus
the warning Dr.Faustus teaches is? Athe devil is evil Bdo not wish for more than heavenly power permits Cthe end will justify the means Dboth A and C
asked by Brittany 
physics
A 59.0kg skater is traveling due east at a speed of 1.80 m/s. A 61.0kg skater is moving due south at a speed of 6.20 m/s. They collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. Find
asked by sammy 
math
You have accepted a project that includes visiting 10 retail locations. Your hourly rate is $12/hour. After completing the 10 locations you have accumulated the following expenses: 5.75 hours worked on the project, 135 miles traveled (paid from mile 1 at
asked by nydia 
need help
A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the
asked by justin 
chemistry
Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 70. cm3. If the combustion of this mixture releases 885 J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the
asked by Brandon 
physics
A 48.2 kg girl is standing on a 160. kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 2.00 m/s to the right relative to the
asked by Anonymous 
calculus
compute the maximum profit for the profit function P(x)= x^3/39/2x^2+8x
asked by dino 
physics
wile e coyote pushes a 1500n rock toward the edge of a cliff with the road runner below. he gives a rock acceleration of .8m/s. what is the net force of the rcok?
asked by Anonymous 
physics help i still dont get it
A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the
asked by justin 
physics
How many significant figures are in 24.010
asked by Karla 
physics
John runs at 4.6 m/s for 7.53 s along the x axis. How far does John run? Answer in units of m
asked by Sadie 
Chemistry Lab
Does the pressure exerted by a gas depend on its molar mass?
asked by Heather 
Grammar
Select the correctly punctuated sentence. A) The implant was ruptured, it was removed, the capsule was irrigated. B) The implant was ruptured it was removed, the capsule was irrigated. C) The implant was ruptured, it was removed the capsule was irrigated.
asked by Marie 
english
they spent a year in france is an example of how fitzgerald
asked by lori 
english2
Bee balm, coneflowers, and blackeyed Susans, brightly colored flowers with darker bulbous centers, contrast beautifully when planted together. is it correct
asked by juan 
Word problem
One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?
asked by Gene 
College math
What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h
asked by Poe 
CHEMISTRY
Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm)
asked by Karina 
math
23 divided by 6=3.83333333333 the 23 is my points and i divide it to find my gpa how do i round the answer
asked by jr 
college math word problem
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.
asked by Angel 
Chemistry
I titrated 0.25 grams of soda ash with 43.7 mL of HCl (0.115M) and 25 mL of H2O. I am getting over 100% sodium carbonate in my answer here are my steps that I took to get the answer can somebody help me see what I did wrong? mols HCl=(0.115M)x
asked by Josh 
NEED HELP ASAP, college math
Find the future value! Periodic payment: $650.00 Payment interval: every month Term: 19 years, 2 months Interest rate: 4.75% Compound frequency: monthly
asked by kerry 
Chemistry
What volume of a 0.332 M hydrobromic acid solution is required to neutralize 29.6 mL of a 0.155 M calcium hydroxide solution ?
asked by Kaitlin 
math
height of a stack of 30 sheets of paper A 2mm B 2m
asked by mythreyee 
algebra
Kim spent a total of $100 for a laptop and 4 blank cds. The cost of the laptop was $92. Write and solve an equation to find, c, the cost of each blank CD
asked by Anonymous 
Health 8
what happen to a person tolerance as they drink regularly?
asked by Laruen 
calculus
What is the degree 5 coefficient of the polynomial p(x)= x^2 (x+1) (x+3x^3 + 4x^4)?
asked by Jerry 
math
How can i get on xtramath
asked by elementary girly 
Chemistry
What is the molar concentration of nitrate ions in a 0.161M magnesium nitrate(aq) solution?
asked by Amber 
Accounting
I am given several hypothetical amounts and interest rates and need to find the amount of the rental payments. (LesseeLessor Entries; SalesType Lease) On January 1, 2011, Palmer Company leased equipment to Woods Corporation. The following information
asked by Mary 
physics
A driver of a car traveling at 14.5 m/s applies the brakes, causing a uniform deceleration of 1.7 m/s 2 . How long does it take the car to accelerate to a ﬁnal speed of 9.50 m/s? Answer in units of s
asked by Anonymous 
science
Is a mineral a crystal?
asked by J 
Chemistry
What is the ionic equation for hydrolysis reaction of NH4C2H2O2 ? Thanks.
asked by DJ 
physics need help bad
A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the
asked by justin 
Precalc
#1. (3x^34x^23x+4)/(x^35x) my answers: yint: NONE xint: 1, 1, and 4/3 x asymtope: x= 0 and + square root of 5 y asym: y=3 If it crosses horiz asym: idk i need help on this #2. (x^47x^2+12)/(x^25x+4) xint: 2, 2, and + square root of 3 yint: 3
asked by Rebekah 
Physics
The length of the rod will become exactly half of its original value. The length of the rod remains the same. The length of the rod will decrease. The length of the rod will increase. Wouldn't the length double, thus being answer D? No one has answered
asked by Laurie 
math
5n+2 divided by 6 n is 4 5×4+2÷6 20+2÷6 19÷6
asked by taliah 
voltage drop
12v r1=10 r2=15 r3=2 r3=18 how would one solve this
asked by J 
math
Can these functions be defined for all real numbers? y= e^cos(x) y= ln(sin(x)) y= sqr(cos(x)+2) I'm trying to find some systematic way to test these, but I'm not sure how I can proe it for any possible input.
asked by Naomi 
Physics
Which doesn't describe motion? mass or position eg. The position of a golf ball standing still on a tee at 7:30 A.M. Sunday morning. or The mass of Voyager as it plunges into a black hole.
asked by Lewis 
Math
4b5+2b=10
asked by Josh 
Maths
Question: I graphed 2x+y=6 Y=(1/3)x+1 & w/ the options No Solution, Infinante Solutions, or ( , ) I found the answer is (3,1) am I correct? What would be a better way to double check my answers?
asked by ArthurK 
Finite PLEASE HELP
A biologist finds that 32% of fruit flies have short wings and 27% have eye defects. Assuming these two events are independent, what is the probability that a randomly selected fruit fly has neither short wings nor eye defects?
asked by Katie 
Math
Use mathematical induction to prove that 2^(3n)  3^n is divisible by 5 for all positive integers. ThankS!
asked by Candice 
Finite Math
A polygraph machine correctly identifies a lie 81% of the time, and incorrectly identifies a true statement as a lie 8% of the time. If a person being examined with the machine lies 10% of the time, what is the probability that a statement identified by
asked by Anonymous 
Finite Math
A fair coin is flipped. If the flip results in a head, then a marble is selected from an urn containing 1 red, 4 white, and 9 blue marbles. If the flip results in a tail then a marble is selected from an urn containing 3 red and 3 white marbles. If the
asked by Anonymous 
Algebra
A petroleum company has two different sources of crude oil. The first source provides crude oil that is 35% hydrocarbons, and the second one provides crude oil that is 60% hydrocarbons. In order to obtain 120 gallons of crude oil that is 55% hydrocarbons,
asked by Matthew 
mathURGENT!!!!
the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. what is the answer and can u explain how u got it step by step? please...
asked by dan 
Physics
How many significant figures are in 1.30470
asked by Abby 
physics help
Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.
asked by anthony 
Grammar
The plan was to quickly attack England and afterwards Turkey. Is the sentence correct?
asked by Anonymous 
MATH  ALGEBRA
Classify as Monomial, Binomial or Trinomial 8X23/5 X+35 Please help.
asked by DAVID 
math
(7)(4)(2)=56
asked by taliah 
Geometry
The angle of elevation of a ladder leaning against a wall is 45°. If the distance from the base of the ladder to the wall is 15 feet, find the length of the ladder.
asked by Patrick 
algabra
why are prime numbers beter when writing codes?
asked by brandy 
Physics
Three objects with masses m1 = 7.4 kg, m2 = 11 kg, and m3 = 18 kg, respectively, are attached by strings over frictionless pulleys (M1 hangs off the left side of the table and M3 hangs off the right side of the table with M2 between them on the table). The
asked by Dug 
Abnormal Psychology
In comparison to children with autism, children with schizophrenia A. tend to be younger at diagnosis. B. show a more chronic and declining course. C. show similar social and language deficits. D. show less intellectual impairment. I think its C or D but
asked by Felicia 
math
(3x+1)^3/(3x+1)^3 +1 use the chain rule to complete the derivative
asked by dino 
Poltics
Who is the President of The Department of Human Services for Wayne County in Michigan?
asked by Bonnie 
Calc
Set the first derivative and second derivative of x^2/x2 equal to 0. Solve for 0.
asked by Anonymous 
math
a disk has an area of 250 square inches.what is theradius of the disk?
asked by lori 
vocabulary
very few starting pitchers have the to pich well for nine innings.
asked by Anonymous 
Calculus
simplify log2(4x^2 2^x)
asked by Jake 
Biology (cellmolec)
You wish to perform a restriction digest in a 20uL volume. Your DNA is 0.20 ug/uL and you wish to digest 1.0 ug. Your restriction enzyme is provided as 0.2 U/uL. Fill in the appropriate volumes: H2O, 10Xbuffer, DNA, and restriction enzyme. Please show
asked by Redgy22 
MATH
Given Pr(a)= 0.9, Pr(CA)= 0.78 and Pr(DB) = 0.38. find a. (AC) = b. (AD) = c. (BC) = d. (BD) =
asked by Katie 
math
Angelique has five more than 3times the number of movies passes that she had last week. Let x represent the number of movie passes that she had last week. X(5x3)=15x
asked by taliah 
Calculus (math)
Write a formula for f^1 (x) if f(x) = (x+5)/(3x4) and state the domain of f1
asked by Karly 
Math
Eliminate the parameter in the pair of parametric equations to find the corresponding rectangular question. x=h+ asecQ y=k+ tanQ
asked by Soren 
Math
23×17
asked by Chase 
Computers
How can computers affect our health?
asked by Juanita 
chemistry
What is the final temperature of water when 2.70 grams of calcium chloride is dissolved in 25 mls of water at 25.5 Celcius.
asked by Chelsi 
math
For the functions f(x)=3x12 and g(x)=(x/3)+4, find each of the following a) f o g (x) b) g o f (x)
asked by arielle 
Math
2x1/3 +3 or=6
asked by Kristine 
collegemathwordproblem
When a number is decreased by 30%of itself, the result is 28. What is the number?
asked by Angel 
collegemathwordproblem
When 80% of a number is added to the number, the result is 252. How do I find the number?
asked by Angel 
English
Hi i need help with an example of a Nominative Absolute sentences using an example from Emily Bronte's wuthering heights
asked by Anthony 
calculus
Left f(x) = 1/x+2 and g(x) = x1/x. Simplify as much as possible and sstate the domain. f 0 g(x) g 0 f(x)
asked by Deron 
Calculus
Im finding local Min and max of x^2/x2 I know I take the derivative of the first one but how do i derive this one. And the second one especially don't know how to do.
asked by Ally 
Punctuation
Select the correctly punctuated sentence. A) It was an exhausting complicated surgery. B) It was an exhausting, complicated surgery. C) It was an exhausting, complicated surgery My answer is B
asked by Marie 
Word problem
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.
asked by Gene 
physical science
how much heat is absorbed by contacting 10 grams of 100 degree C steam by a students hand.
asked by Anon 
Punctuation
Select the correctly punctuated sentence. A) His greatest fears were a stroke, a heart attack, and blindness. B) His greatest fears were a stroke a heart attack and blindness. C) His greatest fears were a stroke, a heart attack, and blindness I answered A
asked by Marie 
math
23 divided by 6=3.83333333333 the 23 is my points and i divide it to find my gpa how do i round the answer
asked by jr 
math
4(3) exponent is 2
asked by jr 
Word problem
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.
asked by Gene 
Math
2(2+7)+(6x5)=37
asked by Chris 
Physics
A 59.1 N/m spring is unstretched next to the 90 degree angle of an incline, and the system is released from rest. The mass of the block on the incline is m1 = 21.4 kg. (Neglect the mass of the pulley). If the coefficient of kinetic friction between m1 (the
asked by Jack Johnson 
English
I have to come up a reason for my claim help please? Thanks! My claim: technology is harmful to children and teens.
asked by Emma 
Punctuation
_____ are primarily used to separate sentences. A) commas B) periods My answer is B
asked by Marie 
collegemathwordproblem
When 80% of a number is added to the number, the result is 252. How do I find the number?
asked by Gene 
Physics
A simple pendulum consists of a light rod of length L = 0.9 m anchored at a fixed point (like the ceiling), and a small mass m = 0.5 kg attached to the free end. The configuration is moved to an angle Î¸ = 39 degrees from the vertical and released from
asked by Alphonse 
Physics
A massless string connects three blocks as shown below. A force of 24 N acts on the system. What is the acceleration of the blocks and the tension in the rope attached to the 2 kg block?
asked by Julian 
calculus
Find the equation of the tangent line to the graph of the function f(x)=x3/3x5 at x=1
asked by Derik 
math
if f(x)=3/x+x^3 and g(x)=1x^2 find d/dx f(g(x)).
asked by dino 
math
if there are 7 boxes of items and the least amount of items in any one of the boxes is 2 and the greatest amount in any one of the boxes is 4. What are all the possible total amounts of items in the 7 boxes combined?
asked by Anonymous 
math/algebra
How do I find the quotient of 5/22 & 6/11?
asked by Kathy 
social studies
what is venezuela's human development index
asked by shion 
college math please help
What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h
asked by Angel 
college percentages
One number exceeds another by 24. The sum of the numbers are 58. What are the numbers? please help!
asked by Gene 
math
which measures is closest to 59mm? A 50mm B 65mm C 6mm D 6cm
asked by mythreyee 
math
How do I find the numbers adding up to 58 if one of those two numbers is greater by 24?
asked by Gene 
Chemistry
how many grams of hydrogen occupy 40 ml at 300.15 K and 710 torr?
asked by Trisha 
math
what is 37% of 100
asked by elementary kid 
college math
Calculate the future value of an ordinary annuity consisting of annual payments of $1,000 for 4 years if the payments earn 10.70% compounded annually for the first 2 years and 9% compounded annually for the last 2 years. For full marks your answer(s)
asked by kerry 
math word fu
A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.
asked by Jackie chan 
mathe
aufgabe 1.rechne für die folgenden massstäbe aus,welche Länge fünf zentimeter auf der wirklichkeit haben. massstab 11000000 massstab 140000000,massstab150000massstab10000 massstab 1500000
asked by priyanka 
Math
2(2+7)+(6x5)=37
asked by Chris 
social studies
what challenges face venezuela today
asked by shion 
Math
2(2x+7)+(3x5)=37
asked by Chris 
chemistry
each element Na, Mg, Al, Si, P, S has a very big jump in ionization energies. Please explain what causes these jumps in energy?
asked by kenvin 
math
distance for a 1hour bike ride A 800m B 8km
asked by mythreyee 
math
height of the tightrope in a circus A 15cm B 15m
asked by mythreyee 
math
which length is between 7m and 9m A 80 cm
asked by mythreyee 
Math
If Anna leaves her house at 11:00am and walks to her friends house located 1.34 miles away at 5 miles an hour walking speed, approximately what time will she get there?
asked by Elise 
math
which length is between 7m and 9m A 80 cm B 8km C 74cm D 740cm
asked by mythreyee 
history
what are some of the natural resources found at the grand canyon
asked by destiny 
chemistry
how many moles of NaBr are produced from reacting 20.05 moles of AuBr3 with excess NaCN? AuBr3 +NaCN > Au(CN)3 + NaBr
asked by jim 
Physics
How many calories will take to convert 5 grams of 90C degree water to 0 C degree?
asked by Cesar 
Algebra 2
To rationalize the denominator of 4/(2+√8), Brittany multiplied by (2√8)/(2√8) and Justin multiplied by (1√2)/(1√2). Explain why both are correct.
asked by Selena 
Physics
How many calories it take to elevate the temperature of 10 gr of waterfrom 26C to 50C?
asked by Martha 
CALC 251
Let f(x)= [5x^(1/4)]*(x^38) Evaluate at f'(x).
asked by J 
CALC 251
Suppose that f(x)= (e^x)/(x^2+16. Find f'(0).
asked by J 
Sci 207 wk 2 lab 2
Which species appear to benefit from increasing fragmentation? Which species are negatively impacted? Based on your knowledge of environmental science, what could explain these observations? Support your answer with specific results from your data and
asked by Traci Davis 
math
I need a set of 12 numbers that have maximum 8, range 6, mode 6, and median 5. Any answers?
asked by Ingrid 
science
at what age does brain stops developing
asked by nischal 
game theory
What is the relationship between the maximin payoﬀ and the set of NE payoﬀs in a ﬁnite game?
asked by Olga 
MATHS
how much money would you have after 20 weeks if you were given 5c the first week, 10c the second, 20c the third, 40c the fourth, and so on?
asked by chelsea 
Algebra
The difference between the digits in a twodigit numeral is 3. The units' digit is twice the tens' digit. Find the nuermal.
asked by Jane 
College chemistry
When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?
asked by Leslie 
Calculus
Find the limits if they exist lim_x>0 x/x lim_x>0+ sqr(x+4)
asked by Nero 
math
write two equations that prove the associative property is not true for division
asked by Jenny 
south piedmont
convert to a mixed number 89/6
asked by tame mccormick 
Economic
What would happen to the profit maximizing level of output if the market price suddenly rose to $54 per case? Explain why the output level changes.
asked by Sharon 
math
Find the second derivative. f(x)=(2x^2+4)^7/2
asked by Alina 
Math
Solve using Augmented Matrix Methods 4(x1) + 6(x2) = 8 6(x1)  9(x2) = 12
asked by Christopher 
Math
Estimate the sum by rounding: 7.68+3.52
asked by Morgan 
College chemistry
When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?
asked by Leslie 
Health 8 (2nd question)
Describe the effects of alcohol Answer  There were 283 deaths recorded as alcoholrelated and could cause blackouts, memory loss and anxiety. Am I correct and is my answer is good????
asked by Laruen 
math
what is the prime factorization of 1 bilion using exponents?
asked by alex 
Math
Complete the analogy. Monday : Tuesday :: Saturday : _
asked by Amy 
Spanish Beg. 1  help!
spanish words to talk about names so far I got... comom te llamas and me llamo is there a website that list all spanish words to talk about names I just need two more please help!
asked by Laruen 
calculus
Find the derivative of (x^2)(e^3x)
asked by Dominic 
Writing
I have to do a research paper & I want my topic to be on Pixar's influences on the world. My thesis: Pixar is a positive influence on the world. My supporting evidences  1) Has helped the animation industry 2) Has helped the film industry 3) Has inspired
asked by Aimia 
math
if there are 7 boxes of items and the least amount of items in any one of the boxes is 2 and the greatest amount in any one of the boxes is 4. What are all the possible total amounts of items in the 7 boxes combined?
asked by Linda 
math
Suppose f is a linear function such that f(1) = 1 and f(3)=2. Then f(4)=?
asked by Kiki 
Grammar
She is fascinated to monkeys. Or She is fascinated by monkeys? Which do I use? To or By?
asked by Anonymous 
Discrete Math
A bag contains 4 red, 6 white and 9 green marbles. How many ways can 3 red, 2 white and 1 green marbles be selected? Do you used permutation or combination, give your reasoning.
asked by Eddie 
Social Studies
What national interests lead to ultranationalism?
asked by Francis 
English
I need a paragraph of 50sentences?
asked by Ravifa 
calculus
Find the limits lim_x>2 x^3+x lim_x>2 (x^24)/(x2)
asked by Naomi 
Social Studies
Which underlying circumstances occurring during the interwar period of 1919 to 1939 may have influenced whether or not nationalist interest was nationalist or ultranationalist?
asked by Francis 
Social Studies
List the unique circumstances of the interwar period that may have led to ultranationalism.
asked by Francis 
physics
A bullet is ﬁred straight up from a gun with a muzzle velocity of 253 m/s. Neglecting air resistance, what will be its displacement after 2.9 s? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m
asked by Anonymous 
math
1,405ft 1 and 3/4in.cut into 1/2 in.thick slices.how many slices are there?
asked by Anonymous 
math
find the first derivative y= 2/5square root2x+1
asked by Derik 
Math
7(s5)=42
asked by Gail 
physics
A tennis ball is dropped from 1.24 m above the ground. It rebounds to a height of 1.05 m. With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s 2 . (Let down be negative.) Answer in units of m/s
asked by Anonymous 
chem
a new compound composed of just HexNuts and bolts is formed.A 13.7 Kg sample of the new compound is separated into its component elements with the following result 3.84 kg. of hexnuts and 9.90 kg of bolts. 1. How many hexnuts are present in the 13.7 kg
asked by Amanda 
Math
Find all solutions of the equation (sec(x))^2−2=0 The answer is A+Bk where k is any integer and 0
asked by Melissa 
physics
A ball is thrown straight up with an initial speed of 60 m/s. How high does it go? Assume the acceleration of gravity is 10 m/s 2 . Answer in units of m 010 (part 2 of 2) 10.0 points How long is it in the air? Answer in units of s
asked by Anonymous 
Calc
Find all solutions of the equation (sec(x))^2−2=0 The answer is A+Bk where k is any integer and 0
asked by Melissa 
math
Is this the right answer? 42+x3(x2)+11 42+83(82)+11 47×6+11 282+11 293
asked by taliah 
Physics
2 resistors 3 Ω and 6 Ω are connected in parallel across a 6 V battery. What is the current flow through the 3 Ω resistor? 6 A 3 A 4 A 2 A Both B and D sound possible to me..
asked by BoBo 
Social Studies 8  help!
What kind of business(es) did Vanderbilt control (location, dates number of employees, etc.)?
asked by Laruen 
Calculus 1
Find the derivative of y with respect to x. y=(x^6/6)(lnx)(x^6/36) So far this is what I've gotten: y=(x^6/6)(lnx)(x^6/36) y=(1/6)x^6(lnx)(1/36)x^6 y'=(1/6)x^5(1/x)+lnx(x^5)(1/6)x^5 What do I do now?
asked by Alex 
Social Studies 8  help!!!!! (2nd question)
What organizations or buildings named after cornelius vanderbilt? So far I only got Vanderbily University is there anything else????? I google it and that's all it gave me please help me!!!!!
asked by Laruen 
maths urgent please
a particle moves in a straight line such that its position x from a fixed point 0 at time 't' is given by x= 5 + 8sin2t + 6cos2t 1. Find the period and amplitude of the particle. 2. Find the greatest speed of the particle. Could you please explain the
asked by Candice 
Math
How do you find the percentage of a number? I have no clue how you do that. An example I have is 850 students are attending a camp, 38% of them play musical instruments. What number of people play instruments? I don't get how to solve that and here's
asked by Jessie 
MATH
HELP? Exam in 20 mins dont' have any idea how to do this question; please helpp.. anyone! PLEAZE A.S.A.P. minimize p= 15x +18y subject to x+2y= 36 x>=0 y>=0
asked by GARNEL 
math
42+×3(×2)+11 × IS 8
asked by taliah 
Calculus
Find the inflection points of f(x)=8x^4+46x^318x^2+1. (Give your answers as a comma separated list, e.g., 3,2.) Please Help!!!!!
asked by Mike 
physics
When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm
asked by justin 
maths
BEGGING FOR HELP!!! EXAM IN 20 MINS LOST ON HOW TO DO THIS Q. Company has $ 20 million dollars for two types insurance. Insurance Ahomeowners have a 10% annual return. Insurance BAuto has a 12% annual return. The total amount of Homeowners Loans should
asked by GARNEL 
Math
What is the volume in cubic feet, of a box that is 3ft long, 8th wide, and 16ft high?
asked by George 
math
5n+2÷6 N is 4 5×4=20+2=22÷6 3 4/6
asked by taliah 
Calculus
The population (in thousands) of the Tzitzit bird is well described by a function of the form P(t) = ae^kt, where t is the time in years and a and k are constants. If the population was 10 thousand when t0 and 300 thousand when t=3, determine the
asked by Billy 
Chemistry
25.0mL of an acidic 0.100 mol/L tin (II) chloride solution required an average volume of 12.7 mL of potassium dichromate solution for a complete reaction. The amount of concentration of the potassium dichromate solution is _______ mmol/L How do you go
asked by Sam 
physics
wile e coyote pushes a 1500n rock toward the edge of a cliff with the road runner below. he gives a rock acceleration of .8m/s^2. what is the net force of the rcok?
asked by me 
Science 207
As we reach a possible peak in oil production, what alternatives are forming? Consider the role of OPEC, perhaps in reorganizing and monitoring oil production. What do you think is the most viable way to address after effects of this possible peak?
asked by Traci Davis 
physics
a wagon is pulled at a constant speed at an angle of 46 dregress with a force of 100N. ehat is the force of friction between the wagon and the ground ?
asked by me 
math
3a+25a=14 combine like terms right?
asked by Gail 
Math
Sare estimated 32x45 by using 30x40. How could Sara make a more accurate estimate?
asked by Alex 
accounting
Okay so I need help Identifying the reporting issues in this case with references to the conceptual framework pyramid, such as revenue recognition, full disclosure, historical cost, etc. So this gym offers one year memberships. Members can use any of the
asked by Andy 
math
1.48=w+x/10
asked by Hayden