Questions Asked on
October 16, 2013

Math Urgent
15=y+24 What does y equal? Please show all work.
asked by Sarah 
Math Urgent
1/4 w=13 What does w equal? Please show all work.
asked by Sarah 
Business(please help quick!)
Please don't provide any links. We are doing a project where we pick a sports team and we must calculate the revenue and salaries of the players. Then we are asked to explain how a sports team can possibly lose money. Now, I have all of that but I am stuck
asked by Bethany 
English
1. You have to sit down with each other. 2. You have to endure each other. 3. You have to be patient with each other. (Does #1 mean #2 or #3?)
asked by rfvv 
Algebra 1, Math
What is the difference between continuous and discrete?
asked by Anonymous 
physics
A rocket moves upward, starting from rest with an acceleration of 28.1 m/s2 for 4.76 s. It runs out of fuel at the end of the 4.76 s but does not stop. How high does it rise above the ground?
asked by eve 
Science
What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six halflives,
asked by Anonymous 
physics
Three guns are aimed at the center of a circle,and each fires a bullet simultaneously. The directions in which they fire are 120 degrees apart. Two of the bullets have the same mass of 4.50*10^3 kg and the same speed of 324 m/s. The other bullet has an
asked by Anonymous 
maths
a square piece of tin 31cm and20cm is to be made into a box without top,by cutting a square from each corner and folding up the flaps to form the box.what should be the side of the square to be cut off so that the volume of the box is the maximum possible?
asked by haritha 
chemistry lab
what would be the percent yield if 2.2 grams of aspirin is formed?
asked by madellis 
6th grade math
From Monday..Can you check the following problems, please? 1. If the ratios for microphones to karaoke machines are all equivalent, how can you find the value of x? table: microphones 3 9 15 36 karoke 1 3 x 12 Ans: x=5 (because divide each ratio by 3) 2
asked by Alex 
math
1. Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of $487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these
asked by ash 
PSY
I need help answering this question please. What is the relationship between genes, cells, and behavior?
asked by SADE 
geomety
pqr is a right triangle. If RQ = 8, what is PQ?
asked by Anonymous 
Biology
The lack of nutrients and molecular building blocks, cells not secreteing materials normally and improper ion balance are results of which organelle not functioning properly
asked by Alexis 
MATH
LiHua wants to create a triangular fame. She has two pieces of wood, which are 6 inches long and 9 inches long, to use for two sides of the triangle. Which of the following CANNOT be the lenth of the third frame and why? a) 4 inches b) 6 inches c) 13
asked by andra 
MATH Word Problem
A pedestal for a statue is in the shape of a hexagon formed by a square and two congruent triangles, with the dimensions 7 ft length and 4 feet height. What is the area of the top surface of this pedestal? a) 19 sq. ft b) 22 sq ft c) 25 sq. ft d) 28 sq, ft
asked by andra 
Math word problem
claudia went on a skydiving adventure. she jumped when the plane was at an altitude of 10,000 feet and landed safely on the gound at sea level. whhich integer best represent claudia's elevation in feet when she landed? a. 10,000 b. 0 c. 5,000 d. 10,000
asked by andra 
Chemistry
3.50 g of NH4Cl is added to 18.8 g of water. Calculate the molality of the solution.
asked by Shardai 
Chemistry
A solution is made by dissolving 0.698 mol of nonelectrolyte solute in 777 g of benzene. Calculate the freezing point and boiling point of the solution
asked by Shardai 
Chemistry
Vitamin K is involved in normal blood clotting. When 2.40 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 8.05 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar
asked by Shardai 
Chemistry
The ΔHvap of a certain compound is 30.22 kJ·mol–1 and its ΔSvap is 60.63 J·mol–1·K–1. What it the boiling point of this compound?
asked by Shardai 
school of engineering
A train of mass 200 tonne travelling at 140 km/h applies the brakes fiercely , so that the brakes lock and the wheels slides along the rails.it stops sliding 1000m. calculate. 1. The acceleration. 2. The longitudinal force on the rail. 3. The coefficient
asked by abdul 
MATH
Oscar is giving his mother a new acquarium in the shape of a rectuangular prism. He is going to wrap it in colorful wrapping paper. He know that he needs exactly 2,948 square inches of paper to wrap the aquarium. If the acuqarium is 40 inches long and 18
asked by andra 
chemistry
An electron falls from the conduction band of silicon (Si) to the valence band. The band gap of Si is 1.1 eV. What is the wavelength of the photon emitted by this process? Give your answer in nm.
asked by kunal 
chemistry
calculate the mass percent of a solution that is prepared by adding 62.3g of NaOH to 343g of H2O?
asked by lima 
school of engineering
A train of mass 200 tonne travelling at 140 km/hour applies the brakes fiercely, so that the brakes lock and the wheels slide along the rails. It stops after sliding 1000m. Calculate: (i) The acceleration, (ii) The longitudinal force on the rails, (iii)
asked by abdul 
reading
When is the best time to read review the discussion questions? A. Immediately after you have finished all of the reading. B. After you write your notes. C. Before you begin any detailed reading. D. At least 1 hour after your detailed reading.
asked by alexis 
Anna
What would be the temperature of 50 g of 20°C water mixed with 80 g of 40°C water?
asked by Jenna V 
phy
The velocity of a 2.5 kg block sliding down a frictionless inclined plane is found to be 1.25 m/s. 1.00 s later, it has a velocity of 4.15 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?
asked by Anonymous 
calc
On January 1, 2013, at a price of x dollars, the demand for a certain product was D(x) = 300 x2 + 10px thousand units per month. t months after January 1, 2013, it is estimated that the price of the product will be x(t) = 3t4/3 +16 dollars. At what rate is
asked by hannah 
Physics
Find the magnitude and direction of the equilibrant force for these two concurrent forces: 13.5 N, E and 32.0 N, N. Pls HELP me answer this. Thank u very much.
asked by Stephanie 
Physics
A person pulls a rake with 152 Newton of force along the handle. The angle between the handle and the ground is 35.0 degrees. Determine the magnitudes of the horizontal and vertical components of this force.
asked by Stephanie 
Physics
A child pulls a wagon along level ground. The handle with which she pulls the wagon makes an angle of 20.0 degrees with the ground as the child pulls with a force of 78.0 Newton. What are the components of the force. Pls pls pls pls help me answer this and
asked by Stephanie 
math
make one hundred and forty 6 times as large.
asked by Kina 
math
if a 1/2 kilogram of beef costs £1.60 work out the coast of 3/4 of a kilogram.
asked by Kina 
math
the weight of 3 different pencils is 50g,30g and 40g.Work out their average weight.
asked by Kina 
calc
The cost of producing d hundred plastic toy dinosaurs per day in a small company is C(d) = 120 + 30d + 1 8d4 dollars. This company is currently producing 500 di nosaurs each day. Using calculus, estimate how much the company should change the production
asked by hannah 
computers
can someone help me anser this question on installing microsoft Describe an experience installing the Microsoft Office Suite software. Note: If the software is already preinstalled, take a look at where the software is installed and list the components
asked by lisa 
Physics
An aircraft has a cruising speed of 100 m/s On a particular day, a wind is blowing from the west at 75.0 m/s If the plane is pointed due north, what would be the magnitude and direction of the velocity relative to the ground? If the pilot wishes to have a
asked by Niki 
Chemistry
If an ideal gas has a pressure of 5.63 × 105 Pa, a temperature of 401 K, and a volume of 0.0313 m3, how many moles of gas are in the sample?
asked by Blake 
English
My ears buzz, but I think I hear him shout, “Run, son! Get up and run!” Uncertain, I scramble and gape at Baba. Sweat streams down his face, and he holds a hand over his chest. Is he having a heart attack? He can’t be. His eyes are shining. I can see
asked by Anonymous 
cor biology
Substance X has a molar extinction coefficient (E) of 4725 l.mol1. How many moles of X are needed to produce an absorbance of 1.0 in a 1 ml cuvette?
asked by Turki 
physics
8.01 homework. I have difficulty with question no. 2. all my equations do not workRough Surfaces. Also, the period of oscillation got part a the rest is confusing and my answers do not check out. I thought this was a very difficult assignment to say the
asked by Frank 
Chemistry
A gaseous mixture contains 413.0 Torr of H2(g), 372.1 Torr of N2(g), and 70.1 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.
asked by Blake 
English
Benjamin Franklin was both a statesman and an inventor. How do i make this sentence parallel
asked by cassie 
English
At the fair, not only can I eat tasty food, but I can also see awesome fireworks. How do i make this a parallel structure using linking words?
asked by cassie 
pigskin geography week 7 day Oct 20
ascertain which team will lookdown into the grand canyon going to tyheir game. _____________
asked by mia 
pigskin geography week 7 october 20
which team will make a transcontinental flight to play their game? ___________
asked by mia 
pigskin geography
determine the cardinal direction the buffalo bills will fly in route to their game against the miami dolphins on october 20
asked by mia 
computer
what is the least difficult microsoft office component to learn? what is the most difficult?
asked by lisa 
prealg
I need help to create an addition word problem and a subtraction word problem using fractions. I need to show how to find the solution to each problem. Once I find the solutions to my problems, I have to rewrite the solutions as either a terminating or
asked by AudioslavedCobain182 
Physics
An 8.3 uF and a 2.9 uF capacitor are connected in series across a 24 V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy?
asked by Anonymous 
10th us history
Why did the British fight with the Indians?
asked by tom 
Physics
A truck travels due east for a distance of 1.7 km, turns around and goes due west for 7.1 km, and finally turns around again and travels 3.5 km due east. What is the total distance that the truck travels? What are the magnitude and direction of the truck's
asked by Arielle 
english
Though not sedking any attention or credit, the volunteer organization was (adulated) for its many (quibbling) activities. are the two vocabulary words correct
asked by kevin 
Chem
Copper(II) fluoride contains 37.42% F by mass. Use this % to calculate the mass of fluorine in grams contained 28.5 g of copper (ii) fluoride
asked by Cindy 
ET3034TUx Solar Energy
The width of the space charge region at a pn junction is reduced by applying a voltage bias over the pn junction. What is the correct statement on both the bias voltage and the pn junction? a)The voltage is a forward bias and the diffusion of the
asked by Anon 
ET3034TUx Solar Energy
The current density of an ideal pn junction under illumination can be described by: J(V)=Jph−J0(eqVkT−1) where Jph is the photocurrent density, J0 the saturationcurrent density, q the elementary charge, V the voltage, k the Boltzmann's constant, and
asked by Anon 
Science
A coffin is given an initial speed of 4.4 m/s up the 17.8º inclined plane with a coefficient of kinetic friction of 0.4. How far up the plane will it go?
asked by Rachel 
Physics
VERTICAL SPRING A spring of negligible mass, spring constant k = 89 N/m, and natural length l = 1.4 m is hanging vertically. This is shown in the left figure below where the spring is neither stretched nor compressed. In the central figure, a block of mass
asked by Megan 
Chemistry
In the equation N2 + 2 O2 → 2 NO2, 14 g of nitrogen can produce how many grams of nitrogen dioxide?
asked by Kellie 
PHYSICS
An automobile travels 30 km due east on a level road . It then turns due north at an intersection and travels 40km before stopping. What is the the resultant displacement of the car?
asked by Peter 
psychology
I need help answering this question please. What is the relationship between genes, cells, and behavior?
asked by SADE 
finite math
Isaac, Jennifer, and Karl are making their airline reservations to fly to Kennedy airport (NYC) from Indianapolis on the day after the final exam. All three want to fly on UV Air. UV Air has morning flights from Indianapolis to Kennedy at 7:30 am, 8:15 am,
asked by selby 
Science
What can scientists learn from the rate at which radioactive elements decay? A. a rock's absolute age* B. the relative age of rock layers C. where one soil horizon ends and the next begins D. the difference between molds and casts. After six halflives,
asked by Anonymous 
math
Muhammad Chabali earns $13,600 per year. He is paid 12 times per year and claims 2 exemptions. His city and state combined tax him at a rate of 10%. How much tax is withheld per pay period?
asked by jared jones 
Chemisty
When alkali metals are heated with hydrogen they formhydrides
asked by Peter 
social studies
What led to Neo Indians groups settling in Louisiana ? a) the mild temperatures in the area b) the abundance of water for fishing c) the lack of animals to hunt d) the practice of growing foods seasonally
asked by victoria 
Chemistry
A gaseous mixture contains 413.0 Torr of H2(g), 372.1 Torr of N2(g), and 70.1 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.
asked by Blake 
statistics
When Trevor and Brian play ping pong, the probability that Trevor will win is 0.6. If Trevor and Brian play two games of ping pong, find the probability that Trevor wins the first game and Brian wins the second. Assume games are independent. Give your
asked by Anonymous 
Newtons Second Law Physics
If a cart and a string are attached and there is a weight on the end of the string to pull the cart, and both the cart and the weight on the string were the same.. what would I expect acceleration to be using Newton's second law?
asked by Katie 
algebra 2
Solve system of equations.Describe each step if your solution. W+X+Y+Z=2 2WX+2yZ=1 W+2xy+2z=2 3w+x+yZ=5 Please help I only know how to do this with 3 equations.
asked by erick 
Homework Help Calculus
Find the linear approximation L(x) to the function f(x)=2x^(2) at the point, x=4 and use it to estimate the value of f(39/10). I already found L(x: L(x):(1/8)(x4)/16+0((x4)^2) How do you find f(39/10)?
asked by Amy 
math
COMPLETE ratio table It takes 2 cups of cranberry juice for every for every 3 cups ginger ale Cranberry juice Ginger ale 2 ? ? 6 6 ? ? 12
asked by alexis 
math
1. find the equation of the tangent line at x=1 to y=f(x) where f(x)=(3x^2)/(5x^2+7x) Can someone help walk me through the steps of this problem. Do I start with finding the derivative of the function using the quotient rule?
asked by Anonymous 
Homework Help Calculus
Find the linear approximation L(x)of the function f(x)=cos(pi/(6)x) at the point x=1 and use it to estimate the value of cos(13pi/72). Here's what I did so far: L(x)=sqrt(3)/21/12pi(x1)+0((x1)^2) How do I find cos(13pi/72)
asked by Amy 
statistics
According to the Current Population Survey of the Census Bureau, 67% of children live with both parents, 23% live with their mother only, and 5% live with their father only. The rest live with neither parent. If we choose a child at random, what is the
asked by Anonymous 
Physics PLEASE HELP
A coffin is given an initial speed of 4.4 m/s up the 17.8º inclined plane with a coefficient of kinetic friction of 0.4. How far up the plane will it go?
asked by Rachel 
GEOMETRY
parallelogram with a side of 40in a base of 36in and a height of 33in. WHAT IS THE AREA?
asked by D 
health
Whats the largest bone in your body?
asked by D 
Language Homophones
What is the homophone for racecourse.?
asked by Brianna 
math
How do I solve ? Adam bought a basketball that was on sale for 25% less than the original price.The original price was $4 more than the sale price. What was the original Price?
asked by alexis 
Math
The price of a stock decreased $2 per day for four consecutive days. What was the total over the four day period?
asked by Liyah 
math
what percent of 80 is 12
asked by Taylor 
Help history
World civilization 1 and 2 Which one s more interesting please help I have to chose one
asked by Amy 
math
102% of 400 is what number
asked by Taylor 
MATH WORD PROB Function
To rent a conoe, you pay a fee of $25 and an hourly rate of $5. Express the total cost of a rental as a function of hours, h. Then use the fuction to dertmine the total cost to rent a conoe for 8 hours. The equation should be written in slope intercept
asked by andra 
Math
I am part of a whole. I am less than onehalf but greater than four tenths. I am a decimal with the digit 2 in my hundredths place. What number am I?
asked by Courtney 
math
the original bill was $27.20. You left $ 3.81 extra for the tip. What percentage of the original bill was he tip?
asked by Taylor 
math
1. find the equation of the tangent line at x=1 to y=f(x) where f(x)=(3x^2)/(5x^2+7x) Can someone help walk me through the steps of this problem. Do I start with finding the derivative of the function using the quotient rule?
asked by Anonymous 
Algebra 1
The sum of three consecutive integers is 48.what is the set of the three consecutive integers that fits this situation
asked by Haha 
math
Suppose a number is chosen at random from the sample space {3, 4, 5, 6, 7}. Find the probability as a fraction and percent. Round the percent to the nearest tenth. Please show your work. P(less than 3)
asked by hannah 
math
Solve the compound inequality. 3 < 2x  3 < 5
asked by hannah 
physics
Particle 1 with a momentum of 126.2 kg·m/s along the x axis, strikes particle 2, which is initially motionless. After the collision, particle 1 has an x component of momentum, p1x = 82.0 kg·m/s and a y component, p1y = 46.8 kg·m/s. What are p2x and p2y,
asked by Anonymous 
Calculus Practice Problems
A boat is pulled into a dock by a rope attached to the bow (front end) of the boat and passing through a pulley on the dock that is 4 m higher than the bow of the boat. If the rope is pulled in at a rate of 3 m/s, at what speed is the boat approaching the
asked by Kelly 
Accounting
The following unadjusted trial balance is prepared at fiscal yearend for Nelson Company. NELSON COMPANY Unadjusted Trial Balance January 31, 2013 Debit Credit Cash $ 26,150 Merchandise inventory 14,500 Store supplies 5,000 Prepaid insurance 2,100 Store
asked by Denise 
AP Chem
How many liters of H2 have the same number of molecules as 1.00 liters of 02? ( At the same temperature and pressure)
asked by Josh 
Math estimating quotients
53 divided by 3. The answer is about 18. However, I am unsure of what two numbers to multiply between.
asked by Charly 
math
in a motel the room tax is $4.50 and the room rate is $75. write the tax asa percent of the room
asked by Taylor 
algebra
3(a+5b)7/2(2ba) combine like terms
asked by hannah 
Theoretical Calculus
I have too much swag
asked by Ivanna P Budly 
Trigonometry  Proof
Prove that cot x + tan x = csc x * sec x whenever both sides are defined. I tried rewriting all sides in terms of sin x but it got all complicated and I can't make head or tail of it. Could someone assist me? Is it all just a poundout algebra problem in
asked by John 
Math
1. The US Senate is composed of 2 senators from each of the 50 states. For a treaty to be ratified, at least twothirds of the senators present must approve the treaty. Suppose all senators are present and 48 of them have voted in favor of a treaty. What
asked by Charlotte 
math
mary wanted to buy a shirt that was originally $40 but is now 20% off. How much would mary save if she buys the shirt? is it $2.00
asked by Taylor 
allgebra
1/3(x+5=k) solve for x
asked by hannah 
Math
4t(5+2t)=37
asked by Christa 
chemistry
Covert 22.3 grams of C6H12O6 to molecules
asked by Cindy 
algebra functions
can someone help me with this and explain it to me step by step so i can try to solve the remaining problems i have I have no idea of what I am supposed to do For each problem, construct two composite functions, . Evaluate each composite function for x=2.
asked by Ricki 
math
0.81 divided 9
asked by janari 
Physics
A +30 µC point charge is placed 32 cm from an identical +30 µC charge. How much work would be required to move a +0.45 µC test charge from a point midway between them to a point 11 cm closer to either of the charges?
asked by Rex 
Math explanation
Explain how 0.5 and 0.05 are NOT equivalent
asked by Anonymous 
4th grade math
kareem put 5 carrot sticks on each of 8 plates. he had 4 carrot sticks left over. how many carrot sticks does he have
asked by mythreyee 
4th grade math
brendan has 75 stamps in his collection. he puts 8 stamps on each page in his album. how many more stamps does he need to fill 10 pages with no stamps left over
asked by mythreyee 
Math
What is 14 R5 in decimals?
asked by Anonymous 
Math
Point A lies in plane B. How many lines can be drawn perpendicular to plane B through point A?
asked by Christa 
Math
Marlon has 4 cards, lisa has 4 cards and sam has 3 cards. Can you write a multiplication sentence to find how many card they have in all? Explain
asked by Eric 
Physics pls anyone can help me? its urgent
When the sun is in the zenith and the sky is perfectly clear, the solar power we receive on the surface of the earth is roughly 1 kW per square meter (on a horizontal surface that is normal to the direction of the sun). Calculate the average solar power
asked by saru 
Science
What part of the circulatory system moves the blood through your body?
asked by Kyle 
physics
When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?
asked by lily 
language
is this sentence making sense 'you meddling kids are never to trespass in my yard" im writing an essay and wondering if this sentence mak es sense
asked by Anonymous 
math
A road is 53 km 500 m long. Out of this, 15 km 800 m is closed for repairing. How much of the road is open to traffic?
asked by samantha 
Math
1. Carol spends 17 hours in a 2 week period practicing her culniary skills. How many hours does she practice in 5 weeks? 42.5 hours
asked by Jerald 
Math
In the typing world, 80 words per minute is considered acceptable. How many words per 30 minutes is this? 8
asked by Jerald 
Math
What is 14 r5 in decimals?
asked by Anonymous 
Math
In a shipment of 400 parts 14 are found to be defective how many defective parts should be expected in a shipment of 1000? 125
asked by Jerald 
math
A mobile shop sold one phone set everyday in the month of February and March of 2013. If each set costs $102, which of the following is closest to the money the shop earned in these two months? pick an answer that is right :/ (counfuesd) $5,000 $6,000
asked by samantha 
math
find the product to (2x+4y)(8x+3y)
asked by sammy 
Statistics
What is the mean and standard deviation of 63.7%? What is the mean and standard deviation of 61.4%? Using the 689599.7 rule, describe the sampling distribution of 63.7% Using the 689599.7 rule, describe the sampling distribution of 61.4%? Please help I
asked by Lisa 
Math Critical Thinking
Isaiah changes his bike tire every 4 months. How many tires will he have changed in 2 years?
asked by Anonymous 
Math
The ratio of men to wmen at a class is 6 to 5. How many women students are there if there are 3600 men? 3000
asked by Jerald 
math
mindy picked 4 times as many daisies as tulips for a flower bouduet. she picked a total a 20 flowers. how many more daisies than tulips did she pick
asked by Anonymous 
math
In the figure, p  q and r is the transversal. If OA and OB are bisectors of the interior angles, which of these describes angle AOB?
asked by samuel 
math
If the marks obtained by students in an examination and the weightage for the different subjects are given in the figure. What is the value of the weighted average? PICK 70 77.3 75 80
asked by jasmine 
Math
An employee working at an electronics store earned $3582 for working 3 months during the summer. What did the employee earn for the first two months? I got $2388 I used a proportion and got 3582/3=x/2 solve for x then i divided 2388/3 and got my answer
asked by Jerald 
Math
If 3 pounds of apples cost $0.90, how much will 10 pounds cost? $3.00 You find that your watch gains 2 minutes in 6 hours. How much will it gain in 3 days? 24 minutes
asked by Jerald 
Calculus Practice Problems
A filter filled with liquid is in the shape of a vertexdown cone with a height of 12 inches and a diameter of 18 inches at its open (upper) end. If the liquid drips out the bottom of the filter at the constant rate of 3 cubic inches per second, how fast
asked by Kelly 
Physics
A man of mass 70 kg is in free fall in the air. He reaches a terminal speed of about v_term = 54 m/s. (Note that v_term >> v_crit and we are in the pressure dominated regime where F_fric is directly propotional to v^2 ; we have g = 9.8 m/s ) What is the
asked by saru 
Math
Hurricane Kathrina dropped about 14 inches of rain over a 48 hour period. How much rain is this per hour? (round your answer to the nearest tenth) I got 7 so I round it? I did 14/48=x/24 solve for x Then divided 336/48
asked by Jerald 
CHEMISTRY..
*What are the products after a single replacement rxn? *Determine the spectator ion(s) and the net ionic equation. F2(g) + AlBr3(aq)>? After single replacement....Br2 is a liquid, not a solid so ppt will not form..hence, there is no reaction?
asked by Anonymous 
Math please help?!?!
Point A lies in plane B. How many lines can be drawn perpendicular to plane B through point A? 1) one 2) two 3) zero 4) infinite
asked by Christa 
math
A persons height is 161 and the persons shadow is 280, and a objects height is 345. Solve by using proportions
asked by Jada 
math
Which comparison sentence best represents the equation? 6x7=42 7 is 6 times as many as 42. 6 is 7 times as many as 42 or 42 is 6 times as many as 7.
asked by ezekiel 
math
Person's height is 163 and the person's shadow is 290. The objects shadow is 345. Solve by using proportions
asked by Jada 
math
Persons height is 165 and the persons shadow is 285. The objects shadow is 345. Solve by using proportions
asked by Jada 
chem
Pu238 is radioactive by alphadecay (halflife 87.7 y). Each decay releases 5.6 MeV of energy. Pu238 is sometimes used to power space probes. If all the decay energy can be converted to electric power, what mass of Pu238 would be required to power a 22
asked by Jane 
Physics
if the water in the river moves downstream at 4mi/hr heading the boat straight across the river, what direction will the boat move relative to the shore? i don't want the answer... i want someone to explain. i wanna learn
asked by Carlos 
Physics
A car starts from rest on a curve with a radius of 150m and tangential acceleration of 1.5m/s2 . Through what angle will the car have traveled when the magnitude of its total acceleration is 2.6m/s2 ?
asked by Shawna 
math
A classroom bulletin board is 7ft by 4ft,if there is a picure of a student every 6 inches along the edge including 1 in each corner,how many pictures are on the bulletin board?
asked by Tamika 
physics
A mass M of 2.95 kg is attached to the end of a string whose length is 0.420 m. The mass slides without friction on a horizontal surface as indicated in the diagram. If the string can withstand a maximum tension of 127.5 N, what is the maximum tangential
asked by Anonymous 
Physical Science
5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) > HCa + Cl(OH)2 (B) HCl + Ca(OH)2 > H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 > 2H2O + CaCl2 (D) 2HCl + Ca(OH)2 >
asked by CJ 
grammar
they decided that the hedge needed a trim. what is the part of speech of trim in this sentence
asked by Anonymous 
Math
Darren is trying to improve his typing speed. On his first practice assignment, he types. 198 words in 6 minutes. On his second assignment, he types 248 words in 8 minutes. Did his speed improve? Tell how you know.
asked by ???? 
CHEMISTRY..
1. Will a precipitate form if solutions of potassium sulfate and barium nitrate are combined? If so, write the net ionic equation for the reaction. 2. Will a precipitate form if solutions of potassium nitrate and magnesium sulfate are combined? If so,
asked by Anonymous 
Math
If a trip between work and home takes 15 minutes each way how much till will be spent in a 5 day work week traveling back and forth to work? (assume that at no point does the employee have to go home and come back within the same day) Would the proportion
asked by Jerald 
General chemistry
Many portable gas heaters and grills use propane, C3H8(g). Using enthalpies of formation, calculate the quantity of heat produced when 16.0g of propane is completely combusted in air under standard conditions. Assume that liquid water is forming.
asked by Victoria 
physics
In the figure here, a box of Cheerios (mass mC = 1.4 kg) and a box of Wheaties (mass mW = 3.3 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is
asked by adek 
statistics
It has been reported that 86% of federal government employees use email. If a sample of 175 federal government employees is selected, find the mean, varience, and standard deviation of the number who use email.
asked by Anonymous 
Chemistry
the density of Fe2O3 is 5.343g cc. What is the mass volume concentration of iron in Fe2O3
asked by jay 
algebra functions
construct two composite functions, Evaluate each composite function for x=2. i do not fully understand functions yet can someone explain and show me what to do step by step f(x)=x+1 g(x)=x2
asked by tani 
physics
What maximum height will a 318.3 m driver each if it is launched at an angle of 17.0 tothe ground? The acceleration due to gravityis 9.81 m/s2.
asked by SJ 
math
1. Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of $487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these
asked by Anonymous 
calculus
The question is: tan(arcsinx)= I know that inverse of sin is 1/sqrt(1x^2) however this question still confuses me. The outcome is x/sqrt(1x^2), how did the tan create the additional x ?
asked by Joshua 
math
I need help solving this problem; 73(2t5)+4t=18
asked by Anonymous 
math
the cost of 5 similar digital cameras and 3 similar camaras is 3213.00$. each video camera cost 4 times as much as each digital camera. john buys a digital camera and a video camera. how much does he pay
asked by Anonymous 
chemistry
calculate the mass/volume percent of a NaCl solution in which 127g of NaCl is dissolved in enough water to give a total volume of 2.69L.
asked by lima 
calculus
f(x) = ln(ln(lnx)) has the domain of (e, infinity). I am not sure how this occurs however. I know in the case of ln x, x must be greater than 0. However where does e come from. e is the base of log in the case of ln, but something is just not clicking for
asked by Joshua 
pigskin geography
name the states that the Chargers will fly over in route to their game in Jacksonville, ____,_____,_____,_____,____,_____,____, ____,____.
asked by mia 
calculus
The question is: tan(arcsinx)= I know that inverse of sin is 1/sqrt(1x^2) however this question still confuses me. The outcome is x/sqrt(1x^2), how did the tan create the additional x ?
asked by Joshua 
Physics
A train is moving parallel and adjacent to a highway with a constant speed of 27 m/s. Ini tially a car is 60 m behind the train, traveling in the same direction as the train at 41 m/s and accelerating at 5 m/s2. What is the speed of the car just as it
asked by Julia 
chemistry
What is the final volume in milliliters when 0.700L of a 46.9% (m/v) solution is diluted to 20.1% (m/v)?
asked by nancy 
chemistry
Exactly 10 mL of water at 25°C was added to a hot iron skillet. All of the water was converted into steam at 100°C. If the mass of the pan was 1.20 kg and the molar heat capacity of iron is 25.19 J/mol∙°C, what was the temperature change of the
asked by teddy 
chemistry
Exactly 10 mL of water at 25°C was added to a hot iron skillet. All of the water was converted into steam at 100°C. If the mass of the pan was 1.20 kg and the molar heat capacity of iron is 25.19 J/mol∙°C, what was the temperature change of the
asked by teddy 
chemistry
Exactly 10 mL of water at 25°C was added to a hot iron skillet. All of the water was converted into steam at 100°C. If the mass of the pan was 1.20 kg and the molar heat capacity of iron is 25.19 J/mol∙°C, what was the temperature change of the
asked by teddy 
chemistry
Consider a mixture of , albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture? Leave the dialyzing bag in
asked by mona 
math
713(x3)
asked by angela 
Calculus Homework
You are blowing air into a spherical balloon at a rate of 7 cubic inches per second. The goal of this problem is to answer the following question: What is the rate of change of the surface area of the balloon at time t= 1 second, given that the balloon has
asked by Kelly 
math
ANGLE A AND B ARE SUPPLEMENTARY. THE MEASURE OF ANGLE A IS 5X+12 AND THE MEASURE OF ANGLE B IS 6X30. FIND THE MEASURMENT OF EACH.
asked by stephanie 
english grammar
We saw the governor and mayors in a meeting. is governor capitalized?
asked by daniel 
Poetry
What does the metaphor,seas of blood mean?
asked by Alic 
English
I would for you to overlook my narrative essay, for corrections and your advice. The essay is not finished, but would like to know am I on the right path. A Painful Moment It was the summer of 1998; I was twenty years old celebrating the 4th of July with
asked by Edwin 
chemistry
A solution is labeled 85.6 g HCl per 480 g of water,calculate the molality and % HCl by wt.
asked by 12 
Physics
An 8.3 uF and a 2.9 uF capacitor are connected in series across a 24 V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy?
asked by Anonymous 
calculus
lim t> infinity for sqrt(4t^25t1)/(2t3) I get infinity or infinity, but the real answer is 1. How does this occur?
asked by Joshua 
Chemisry
If 125 mL of a 6.00 M KNO3 solution is diluted with 100.0 mL of water, the molarity of the resulting solution would be
asked by Anonymous 
chemistry
A solution is labeled 85.6 g HCl per 480 g of water,calculate the molality and % HCl by wt.
asked by 12 
Math Question
This problem on my homework is asking me to write each fraction as a decimal, and round to three decimal places. The fraction was 17/16. I got 1.0625 for the decimal. What does it mean to round it to three decimal places, and how do I do that?
asked by Zara 
Chemistry
If the molar concentration of sodium ions is 0.44 M, then the concentration of sodium sulfate is 0.88 M True or False
asked by Anonymous 
marie g davis
bus route also throgh balmorhea which is 1/3 of the way from el paso to san antonio abaut how does it take the bu s to get to balmorhea. you can healp this homework is may son I do now undertand.
asked by alejandro 
physics
A skier of mass 40.6 kg comes down a slope of constant angle 30◦ with the horizontal. What is the force on the skier parallel to the slope? Neglect friction. The acceleration of gravity is 9.8 m/s 2
asked by ZAIMAH 
Math
is 1.59 written as a rational number in a/b form  is it 1 59/100??
asked by Cassie 
Math
one more  4.03 as a rational a/b form...is it 4 03/100??
asked by Cassie 
math
what is the unit rate for 40.8 gallons in 8 containers?
asked by ayana 
chemistry
Given 50 ml of concentrated nitric acid.The density of the concentrated acid is 1.42 g/ml and is 70% HNO3 by wt. Calc. the molality of the conc. acid.
asked by 12 
chemistry
Given 50 ml of concentrated nitric acid.The density of the concentrated acid is 1.42 g/ml and is 70% HNO3 by wt. Calc. the molality of the conc. acid.
asked by 12 
Physics
A uniform plank of length 5.0 m and weight 225 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 471 N walk on the overhanging part of the plank before
asked by Cheech 
chemistry
Why you did not use the 50 ml given in the problem instead you use 1000?
asked by 12 
chemistry
Why you did not use the 50 ml given in the problem instead you use 1000?
asked by 12 
Math (check my work please?)
A baseball player has 34 hits in 102 times at bat. Another baseball player has 24 hits in 96 times at bat. Write each player's batting average. Here's what I did: 34/102 = BP #1 24/96 = BP #2 34/102 = 1/3 24/96 = 1/4 1/3 > 4/12 1/4 > 3/12 4/12 + 3/12 =
asked by Teresa Perri 
Science
How does dna determine a trait such as eye color
asked by Steve