Questions Asked on
November 20, 2013

Math Expoents
One microgram is equal to 1x10^6 gram. If the mass of a substance is 8x10^9 micrograms, what is its mass in grams? a) 1.25x10^15 b) 1.25x10^3 c) 8x10^3 d) 8x10^15
asked by andra 
waste water treatment
ACTIVATED SLUDGE AND NUTRIENT REMOVAL =========================================== A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via predenitrification. The influent flow (dwf) is 30,000 m3/day and
asked by ham 
Chemistry
calculate the minimum concentration of ag+ ion that must be added to (or built up in) a 0.140 m Na2CrO4 solution in order to initiate a precipitation of silver chromate. The ksp of ag2cro4 is 1.2 × 10^12.
asked by Alicia 
Modern Chemistry
Bromine has two naturally occurring isotopes. Bromine79 has a mass of 78.918 amu and is 50.69% abundant. Using the atomic mass reported on the periodic table, determine the mass of bromine81, the other isotope of bromine.
asked by Anonymous 
math
Karen and Wayne need to buy a refrigerator because theirs just broke. Unfortunately, their savings account is depleted, and they will need to borrow money in order to buy a new one. Sears offers them an installment loan at 16% (addon rate). If the
asked by Anonymous 
Intro to trigonometry
If sin(theta) < 0 and tan(theta) > 0 then: in degrees. Ok I need help with this I couldn't understand the lesson and want to know how to do problems like this. Please help me by showing me step by step! Thank u in advance.
asked by Lisa 
waste water treatment
Description A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via predenitrification. The influent flow (dwf) is 30,000 m3/day and the influent BOD concentration is 300 mg BOD/l. The suspended solid
asked by ham 
waste water treatment
QF Description Wastewater from a small town is treated in a trickling filter which is preceeded by a screen, sandremoval and primary clarification. The maximum hydraulic capacity, or peak flow, of the treatment plant is 1,500 m3/h. The dry weather flow
asked by ham 
Math
There were 7 times as many marbles in Box A as in Box B. After Joyce transferred 294 marbles from Box A to Box B, both boxes had the same number of marbles. How man marbles were there in Box A at first.
asked by J 
maths
an aeroplane takes 40 minutes less to fly 3600km with the wind blowing at 30 km/hr than the time it takes to fly against the same wind .Find the actual speed of the aeroplane when there is no wind.
asked by minni 
Chemistry
Rank the following in terms of increasing ﬁrst ionization energy. 1. Na, Mg, N, O, F 2. F, N, O, Mg, N 3. F, O, N, Mg, Na 4. O, N, F, Na, Mg 5. Na, Mg, O, N, F
asked by Meg 
TrigMedians and law of cosines and sines
In triangle ABC, we have AB=3 and AC=4. Side BC and the median from A to BC have the same length. What is BC? Not making sense to me, I think the answer must be simple, but I don't know how to solve I applied the law of sines but to no avail. Help is
asked by Sam 
Math
Four hoses are filling a pool. The first hose alone would fill the pool in 4 hours while the second hose takes 6 hours. The third hose and the fourth hose each take 8 hours to fill the pool. How long would it take to fill the pool if all 4hoses are turned
asked by Kristen 
biology
POLARITY COHESION SURFACE TENSION CAPILLARY ACTION UNIVERSAL SOLVENT ADHESION match definitions Because water molecules stick together, they form a thin film on the surface of pools of water, on which some organisms can walk Water molecules are able to
asked by anonymous 
Health (Ms. Sue)
Differentiate between environmentally spread diseases and diseases that are spread from person to person. A: Environmentally spread diseases are spread by physical contact of objects in the environment, such as the telephone, doorknobs, and soil, in which
asked by Anonymous 
waste water treatment
ACTIVATED SLUDGE AND NUTRIENT REMOVAL =========================================== A wastewater treatment plant based on activated sludge with biological phosphate and nitrogen removal via predenitrification. The influent flow (dwf) is 30,000 m3/day and
asked by ham 
maths
there are 150 children in a school . two thirds of the children have school meals. how many children is that?
asked by john brown 
Math
What would the equation look like when the line is parallel to y= 3/4x3 and has a Yintercept of 3
asked by Leah 
electromagnets
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in Am^2? What is the magnitude of the torque
asked by Anton help needed 
Health (Ms. Sue)
How can the failure to take antibiotics properly pose a risk to other people's health? A: The failure to take antibiotics properly can pose a risk to other people’s health as, by doing this, it leads to the development of antibiotic resistance, which
asked by Anonymous 
Statistics
Most people are definitely dominant on one side of their body  either right or left. For some sports being able to use both sides is an advantage, such as batting in baseball or softball. In order to determine if there is a difference in strength between
asked by Samantha 
Physics! Please help! :)
A concave mirror with a radius of curvature of 0.61 m is illuminated by a candle located on the symmetry axis 2.61 m from the mirror. Where is the image of the candle? Answer in units of m
asked by Erin 
cal
Approximate the area under the curve and above the xaxis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle. f(x)=3/x from x=2 to x=6; n=4
asked by tony 
math(check answers please)
PLEASE CHECK THESE ANSWERS compare the pair of numbers use ,= 3/4 _ 6/8 A.3/4=6/8(I PICKED THIS) B.3/46/8 Write the decimal as a fraction or mixed number in simplest form. 3.45 A.4 3/4 B.4 9/20 C.3 3/4 D.3 9/20(I PICKED THIS
asked by matt 
math
A package is at rest on a conveyor belt, which is initially at rest. The belt is started and moves to the right for 1.3 s with a constant acceleration of 2 m/s^2 . the belt then moves with a constant deceleration a2 and comes to a stop after a total
asked by kit 
math(check answers please)
Can you please help me with writing fraction as decimal because im clueless with it!  write the fraction as a decimal.28/15 A. 1.6 B. 1.86 C. 2.86 D. 28.15  Write an equivalent expression for 4g+2 using
asked by matt 
chemistry
Glucose can be classified as an aldohexose. Name the following monosaccharide to indicate its carbonyl group and the number of carbon atoms. HOCH2C(=o)c(H2O)C(H2O)CH2OH
asked by prity 
algebra  inequalities
Solve the inequality. 1/4x < 0.325 A. x > 1.3 B. x > 0.08125 C. x < 1.3 D. x < 0.08125 do i divide or multiply here? i think it's divide, in that case, i'd answer C.
asked by orpheus 
HELP Biology
To find out which key will open a lock, you try several until one works. This kind of learning is called ________________________. I have no clue
asked by vickie 
biology
Draw a picture of the structure of a water molecule that includes all of the following: hydrogen, oxygen, partial positive charge(s), partial negative charge(s)
asked by anonymous 
biology
Explain why water molecules are described as “sticky” is it because hydrogen bond that bonds together.
asked by anonymous 
biology
Explain why water molecules are described as “sticky” is it because hydrogen bond that bonds together.
asked by anonymous 
math
A support wire runs from the top of a tower to the ground. If the tower is 1200 feet tall and the wire is attached to the ground 500 feet away from the tower, how long is the support wire?
asked by Marissa 
biology
Pretend you are taking a tour of a factory that creates macromolecules Describe your journey through the 4 rooms in the factory – the Carbohydrate Room, the Lipid Room, the Protein Room, and the Enzyme Room. In each room, include the following: 1.
asked by Reina B. 
Physics!! help pleasee
A 10 kg object with a velocity 7.5i m/s explodes into two equal fragments. One flies off with a velocity 2.5i 2.5j m/s. What is the velocity of the other fragment in vector notation?
asked by Shek 
Fundamental Theorm of Calculus
Find the average value of f(x)=7x^{2} on the interval [1,5]
asked by Chrissy 
Finance
Treasury bonds paying an 8% coupon rate with semiannual payments currently sell at par value. What coupon rate would they have to pay in order to sell at par if they paid their coupons annually?
asked by Anonymous 
math(check answers please)
please check my math answers again thanks. by the age of 27,justin had visited 25 out of the 50 states.what fraction of the states had justin visited?write the answer in simplest form. A.2/1 B.25/50 C.1/2(I PICKED THIS) D.1/3 Heather drove 10 miles in 22
asked by matt 
College Algebra
Change the equation 5x+3y=60 to slopeintercept form.
asked by Haley 
PreCalculus
A piece of equipment has cost function C(x)=50x^2 + 1000 and its revenue function is R(x)= 500x  x^2, where x is in thousands of items. What is the least number of items that must be sold in order to break even? 50x^2 + 1000 = 500x  x^2 50x^2 + x^2 +
asked by Ann 
College Algebra
Solve the System 2x8y=20 3x12y=30
asked by Haley 
Math Explaining
How would you use a number line to round 347 to the nearest ten?
asked by Hero 
Computers (Internet)
Is this considered plagiarism? Original passage: A letter of thanks is a courteous acknowledgment of a gift or of something that was done for you. Another passage: A thank you note is a polite acknowledgment of a present or something nice someone did for
asked by Tiffany 
physics
A microwave draws 5.0 A when it is connected to a 120 V outlet. If electrical energy costs $0.090 per kW·h, what is the cost of running the microwave for exactly 6 h?
asked by TT 
Phsycis/Math (please help)
Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane. The inclined plane is inclined at an angle of 37 degrees. The hanging block has
asked by Jared 
Warren
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 13.2 g, and its initial temperature is 11.9 °C. The water resulting from the melted ice reaches the temperature of your skin, 30.0 °C. How much
asked by Kyla 
Scientific Notation  PLEASSEE
A rectangular yard had a length of 0.006 kilometer and a width of 5x10^3 kilometers. A. Use scientific notation to express the ares of the yard in kilometers, showing each step in the process. B. Convert the area into square meters using the conversion
asked by andra 
Physics
A ball on the end of a string is cleverly revolved at a uniform rate in a vertical circle of radius 85.0cm. If its speed is 4.15 m/s and its mass is 0.300 kg, calculate the tension in the string when the ball is (a) at the top of its path, and (b) at the
asked by Angie 
Math Questions (AGAIN)
Hi! Someone was helping me earlier with these but their explanation was hard to understand. Can someone ELSE help me? Thanka! :) 1.) There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that
asked by Brooke 
Chemistry
Why does Cl have a larger ionic radius than CA2+ ?
asked by Cecilia 
Chemistry
Why does Cl have a larger ionic radius than Ca2+ ?
asked by Cecilia 
English
The pool, “covered up since the end of summer”, is now open, clean and ready to use. a. infinitive phrase b. participial phrase c. gerund phrase d. prepositional phrase B
asked by Anonymous 
cal
Use the differential to approximate the quantity to four decimal places. √(122)
asked by tony 
math
Lindsey ha saved $12 tot go to the movies.This is $3 more than the twice the cost of a movie.What is the cost of a movie?
asked by lion 
math
Solve the proportion: 4 2  =  3.2 x A. 6.4 b. 2.5 c. 1.6 d. 0.8 My answer is c ?
asked by ciara 
Science
Uranium238 is less stable than oxygen16. What accounts for this difference? (A) Uranium is a solid, while oxygen is a gas. (B) Unlike oxygen16, uranium238 has a nucleus in which repulsive electric forces surpass the strong nuclear forces. (C) Oxygen16
asked by AJ 
Physics
Design an AC circuit with R, L, and C components so that it can achieve output voltage in a given load to be doubled in amplitude (magnitude) while achieving increase in the phase shift of the output voltage of 45 more than the phase of the input voltage.
asked by Jane 
English !!!
To find out which key will open a lock, you try several until one works. This kind of learning is called ________________________.
asked by Riley 
understanding and managing money
which of the following statements about money invested in a traditional ira account is correct?
asked by yusuf 
English
Ever since Lisa auditioned for the musical Annie in the third grade, she had been seriously interested in musical theater. She loves to sing, dance, and act. She performs in two or three shows in her city each year. This year, Lisa was excited to audition
asked by Anonymous 
Math
1. Solve the proportion: z z+9  =  3 12 A. 4 b. 3 c. 2 d. 1 my answer is c ? 2. Solve the proportion: 16 = 8   4d+2 3 A. 1^ 11  12 b. 1^ 1  3 c. 1 d. 2 My answer is D ? 3. A solution contains 2.2 liters of water. Convert this measurement
asked by ciara 
algebra
find the length of each person's sandwich? an 18inch long sandwich was purchased & Jenny cuts the sandwich so that Demi gets 1/2 of what Jenny gets and Joel gets 3/4 of what Jenny gets.
asked by Denise 
Physics
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 92.9 m/s2 for 1.85 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude
asked by Tom 
Organic Chemistry Help Please
We're going over the reactions involving Alkenes and Alkynes. However, I'm extremely confused I how to determine with solvent/solvents to use and also when already given the solvents with the reactants how this will effect the products. I studied the basic
asked by Sarah 
MATHS
The sum of three numbers is 1313. The sum of two of the numbers is 450. What is the third number?
asked by LARA 
Physics
How to add vectors in terms of velocity by using vector chart
asked by Anonymous 
math :)
1. A toy airplane is 10 inches long.If the actual airplane is 75 feet long, find the scale of the model. A. 2:14 ft B. 1:90 ft C. 4:25 ft D. 1:120 ft My answer is B ?
asked by ciara 
Math
I need help with these please: 4. Simplify sqrt27/75. The answer should be in simplest form 5. Solve for w. (3w15) (w^2 + 11w +30) = 0 Thanks MC
asked by mysterychicken 
Chemistry
Sodium vapor lamps are often used in residential street lighting. They give off yellow light with a frequency of about 5.91 × 1014 Hz. What is this wavelength in nm?
asked by Heather 
biology
1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are
asked by anonymous 
Fundamental Theorm of Calculus
Find the average value of f(x)=3x^22 x on the interval [3,6]
asked by LIz 
magnetism
A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +xdirection (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region
asked by Anton (Elena Pl: check) 
Algebra (math)
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total temperature is a function of the number of hours the temperature rose. What was the temperature at noon?
asked by Cristian 
Health (Ms. Sue)
Describe how bacteria develop antibiotic resistance. A: Bacteria develop antibiotic resistance when it changes in a manner in which reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. Also,
asked by Anonymous 
algebra
To the nearest tenth of an inch, find the length of a diagonal of a square whose side length is 8 inches.
asked by Mathew 
Algebra 1
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total temperature is a function of the number of hours the temperature rose. What was the temperature at noon? (also write an equation)
asked by Cristian 
Maths
2(y+2)^2*+4(y+2) 15(x1)^210(x1) 8(p+5)^2+10(p+5)
asked by Candy 
Maths
9(q+1)+6(q+1)^2 7(ab)(a+b)14(a+b) 4x^2(x+1)6x(x+1)
asked by Candy 
Math Question
Hello! I have a question about a word problem: A garden supply store sells two types of lawn mowers. The cashiers kept a tally chart for the total number of mowers sold. They tallied 30 mowers sold. Total sales of mowers for the year were $8379.70. The
asked by Beka 
Algebra
If 9876^2=97,535,376 Find the value of 9877^2 and (9874)(9878) without using a calculator
asked by Summer 
math
The Empire Carpet Company orders merchandise for $17,700, including $550 in shipping charges, from Mohawk Carpet Mills on May 4. Carpets valued at $1,390 will be returned because they are damaged. The terms of sale are 2/10, n30 ROG. The shipment arrives
asked by traci 
Health (Ms. Sue)
Describe how bacteria develop antibiotic diseases. A: Bacteria develop antibiotic resistance when a person stops taking antibiotics before the prescription is finished. By doing this, most of the bacteria die, but some more resistant bacteria survive and
asked by Anonymous 
math
If the there's 50 players which number of players can be arranged in the shape of a square
asked by A+ 
Math
Warren is riding his bike at 15 mph on a road adjacent to railroad tracks. A train traveling at 90mph in the opposite direction as Warren, takes 20 seconds to pass him. How long is the train?
asked by Kristen 
algebra
How do i write an equation of a line with the given slope and yintercept for m= 2/9, b=3?
asked by Marina 
Algebra 1
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total temperature is a function of the number of hours the temperature rose. What are the independent variable and dependent variable
asked by Cristian 
Statistics
A packing company investigates a national training consultant in hopes of improving productivity on the packing line. The national consultant agrees to work with 18 employees, collecting productivity data for each employee before the training program and
asked by Samantha 
Physics
A container holds 1.3 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 6.6x103 kg bullet with a speed of 670 m/s. What is the Kelvin temperature of the gas?
asked by Help Please 
Math
The ratio of cats to dogs is 2:1 and the ratio of dogs to parrots is 15:2. In addition, the ratio of parrots to snakes is 3:1 and the ratio of snakes to turtles is 6:7. What is the ratio of cats to turtles?
asked by Kristen 
Physics
Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?
asked by Help Please 
physics
A concave mirror with a radius of curvature of 0.61 m is illuminated by a candle located on the symmetry axis 2.61 m from the mirror. Where is the image of the candle? Answer in units of m.
asked by Erin 
Math
Hi! I have 4 math questions! (: 1.) There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that it will rain on both Saturday and Sunday? 2.)In a shipment of alarm clocks, the probability that
asked by Brooke 
Trigonometry
simplify: tanx/secx+1
asked by Cam 
math
integral problem 8^7dx=
asked by tiffany 
math(check answers please)
hi please check my math answers i only have 2 for now i just wanted to make sure i had the right idea. sarah is making her own halloween costume.The costume requires 2 5/8 yards of materials.Write the number of yards needed for sarahs halloween costume as
asked by matt 
Health (Ms. Sue)
Describe how vaccinations work to protect the body from illness. A: When a vaccine is injected or swallowed, the immune system responds to the vaccine material by making white blood cells called memory cells. Therefore, when or if the pathogen against
asked by Anonymous 
Physics HELP!!
A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 200 rad⋅s1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal (see
asked by bob 
College Algebra
Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Write an equation in stand form that represents all the different combinations of mints and gumballs that Kathleen might have purchased.
asked by Haley 
TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS
imageshack(.)(us)/photo/myimages/834/j6wv.jpg/ imageshack(.)(us)/photo/myimages/17/6n4x.jpg/ please PLEASE IM BEGGING YOU MY TEACHER WILL BE GIVING ME 79 IF I DIDN'T GET THIS .. OR ELSE LOWER THAN THAT. PLEASE TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS
asked by barbie lee 
south carolina history
which of the following terms defines an attack that encircles and limits supplies? siege skirmish stalemate confiscation please help me i just got 3 more!!!!!
asked by recon sniper 
Math
What would the equation look like if the line is perpendicular to y=x+2 and has a yintercept of 0?
asked by Leah 
Physics
A plane flies due north (90° from east) with a velocity of 100 km/h for 3 hours. During this time, a steady wind blows southeast at 30 km/h at an angle of 315° from due east. After 3 hours, where will the plane’s position be relative to its starting
asked by Ashley 
Math
What is the equation look like when the line is perpendicular to y= 43x and has y intercept of 3/4?
asked by Leah 
physics
3. You travel from New Orleans, Louisiana, with the following vectors: • New Orleans à Point A: q = 180°, Δd = 483 km • Point A à Point B: q = 106°, Δd = 347 km • Point B à Point C: q = 106°, Δd = 347 km Remember: east = 0°, north = 90°,
asked by Ashley 
Math questions
Hi! Someone was helping me earlier with these but their explanation was hard to understand. Can someone ELSE help me? Thanka! :) 1.) There is a 10% chance it will rain on Saturday and a 30% chance it will rain on Sunday. What percent chance is there that
asked by Brooke Jean 
physics
1. A man pulls a crate with a rope. The crate slides along the floor in the horizontal direction (x direction). The man exerts a force of 50 N on the rope, and the rope is at an angle q. Describe how the force components (Fx, Fy) change as the angle
asked by Ashley 
Math
If the problem is: 3x22 = x+80 what would x equal? Please show your work.
asked by Samantha 
south carolina history help me ASAP PLZZZZZ
_______ established a lower house, an upper house, and a president who could not be elected. declaration of independence treaty of paris south carolina constitution of 1776 townshend acts
asked by recon sniper 
Calculus Fundamental Theorem
Evaluate the definite integral. function: x+13 with respect to variable x lower limit:0 upper limit:22
asked by Max 
Science
Luis wanted to create a clay model of earth and the sun. To show how Earth rotates, Luis wants to use a toothpick to represent Earth's axis of rotation. Where should Luis place the toothpick? A. Horizontally through Earth in the direction Earth is
asked by Anna 
Statistics
When comparing two samples that are independent of one another, we use the twosample ttest. A) True B) False 5. Using paired differences helps to reduce the variation. A) True B) False Both are True?
asked by Samantha 
south carolina history help me ASAP PLZZZZZ
which state voted first against independence, but eventually voted for it? new york north carolina delaware south carolina
asked by recon sniper 
Calculus Fundamental Theorem
Evaluate the definite integral. function: (t+8)(t^2+3) with respect to variable t lower limit: sqrt(2) upper limit: sqrt(2)
asked by Max 
Algebra 1
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total temperature is a function of the number of hours the temperature rose. What was the temperature at noon? (write the equation as a
asked by Cristian 
south carolina history help me ASAP PLZZZZZ
which of the following was an important change made to south carolinas second constitution in 1778? the low country had many more representatives than the up country. the state leader would be a governor, not a president. the press was more limited in what
asked by recon sniper 
College Algebra
A company that bought a machine for $30,000 wants to depreciate its entire value equally over the next ten years. Write an equation that represents the machine's value, v, in terms of the number of years that have passed since the machines purchase, t.
asked by Haley 
Math
Leslie saw 8 squirrles at the park. She saw 5 birds and 12 ants. how many more ants and birds did Leslie see than she saw squirrles?
asked by Raquel 
Math
Sophia went to an amusement park. She went on 18 rids in all. 7 of the rides were roller coasters. How many of the rides Sophia went on were not roller coasters?
asked by Raquel 
math
A map has a scale of 3 centimeters = 4 kilometers. If two cities are 8 centimeters apart on the map, what is the actual distance between the cities, to the nearest tenth of a kilometer?
asked by Emily 
Physics
An astronaut is at rest 1.0 m away from his shuttle when his jet malfunctions and his handheld radio dies. unable to reach his shuttle to return to safety, a) what can the astronaut do to get himself back to his ship? b) Which of Newton's three laws would
asked by JR 
PhysicsAttention ELENA
A circular plate with a slot in its surface is rotating with angular velocity ω and angular acceleration α with respect to a fixed coordinate system, OXYZ as shown. A ball B moves along the slot in the direction shown with velocity, v, and acceleration,
asked by Michael 
econ/business
Last month, Sue, of Sue's Sandwiches, sold $3,000 worth of product (sandwiches and sodas) from her sidewalk cart to 300 customers. She spent $600 on the sandwich ingredients and buying the sodas wholesale. Her monthly costs are the following: Utilities =
asked by lola 
Trigonometry
(1/(cscx+1))(1/(cscx1))
asked by Cam 
magnetism
A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in Am^2? What is the magnitude of the torque
asked by James 
Physics
Posting this question again Design an AC circuit with R, L, and C components so that it can achieve output voltage in a given load to be doubled in amplitude (magnitude) while achieving increase in the phase shift of the output voltage of 45 more than the
asked by Jane 
magnets
A proton with a velocity of 2.0 x 10^7 m/s in the horizontal (+x) direction enters a region of uniform magnetic field that is 1 meter wide and points out of the page with a magnitude of 0.05 Tesla. At what angle below the xaxis, in degrees, does the
asked by James 
Social Studies (History)
If I created a character who is a Bosnian refugee what does "where did he/she come from? (Place and time). Mean?
asked by Nicole 
South America
What is the longitude and latitude of every piece of south America?
asked by Kate 
chemistry
First off, how do you eve find out if it would be colored or colorless? Will aqueous solutions of the following salts be colored or colorless? Explain. a. Titanium (II) chloride b. Beryllium chloride c. Tin (II) nitrate d. Iron (III) nitrate
asked by Heather 
biology need help
1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are
asked by anonymous 
chemistry
Potassium metal, K, is more reactive than sodium, Na. Calcium, Ca, is less reactive than sodium. The comparative reactivity of these metals is K > Na > Ca. Explain the reactivity differences of K, Na and Ca based on their atomic structure.
asked by Heather 
physical
Which of the following statements is true concerning physical space in physical education
asked by Anonymous 
math (NEW ANSWERS)
identify the fraction that is equivalent to 3/8. A.15/32 B.12/32(I PICKED THIS) C.12/24 D.9/32  A video game has three villains who appear on screen at different intervals.one villain appears every 5 seconds,a second villain
asked by matt 
science
Does 'cocoa bean' mean 'cacao bean'? What is the difference between 'cacao' and 'cocoa'?
asked by rfvv 
Fundamental Theorm of Calculus
Use a definite integral to find area of the region under the curve y=74x^2 and above the xaxis. Thanks in advance!
asked by LIz 
College Algebra
A 50 gallon barrel plumb full of water springs a leak in the bottom and leaks at a constant rate of two gallons per minute. Write an equation that relates the amount of water left in the barrel, y in terms of how many minutes have passed since the leak
asked by Haley 
Math (Calculus)
Tower 1 is 60 ft high and tower 2 is 20 ft high. The towers are 140 ft apart. A guy wire is to run from point A to the top of each tower. [See a picture of this situation on page 274 of the textbook.] How many feet from tower 1 should point A be so that
asked by Alexis 
Math
A bottle of juice holds 3/8 gallon when it is full. If 1/3 of the juice has been poured out, how much juice is left in the bottle?
asked by Omar 
sosial studies
When 1.0 L solution Ba (NO3) 2 2.0 M at 25oC is mixed with 1.0 L solution of 2.0 M Na2SO4 in a calorimeter, the reaction that occurs to produce solid barium sulfate and temperature of the mixture increased to 28.1 oC. Calculate the enthalpy change per mole
asked by Norsiah 
math
10 2/9(3 1/3)
asked by rj 
math
cot^2(x)1/1+cot^2(x)
asked by Cam 
Algebra NEED HELP ASAP!!!!!!
The temperature outside was 72 degrees at 6 am. The temperature rose 4 degrees per hour for the next 12 hours. The total temperature is a function of the number of hours the temperature rose. What was the temperature at noon? (write the equation as a
asked by Cristian 
home school
the sum of two numbers is 42. their product is 185. what are the two numbers
asked by jamal 
chemistry
consider the following reaction at 298K 4Al(s)+3O2(g) yields 2Al2O3(s) delta H= 3351.4 Kj find delta S sys find delta S surr find delta S unvi
asked by Jessica 
maths
how much more is 18p + 17p than 2 * 15p?
asked by john brown 
Social Studies (History)
What does it mean by setting a scene?
asked by Nicole 
Chemistry
Which of the following groups are indicative of anionic polymerization? a)F b)Cl c)COOCH3 d)H e)CH2CH3
asked by ChemJedi 
houston community college
gordon rosel went to his bank to find out how long it will take for 1,200 to amount to 1,650 at 8% simple interest. round to the nearest tenth
asked by anita collins 
Statistics
Battery manufacturers compete on the basis of the amount of time their products last in cameras and toys. A manufacturer of alkaline batteries has observed that it's batteries last for an average of 26 hours when used in a toy racing car. The amount of
asked by Austin 
statistics
I am conducting a study on support of ban on smartphones in class. 68/87 said yes to the ban. How large of a sample is needed to be sure the margin of error +/ 3.5% with 99% confidence. I know this is estimation...but I am not sure how to go about solving
asked by mel 
Math Exponenet Word problem
A microscope is set so it makes an object appear 4x10^2 times larger than its actual size. A virus has a diameter of 2x10^7 meter. How large will the diameter of the virus appear when it is viewed under the microscope?
asked by andra 
math
Write a situation that can be represented by 3.25d
asked by lizzie 
College Algebra
Write an equation for the amount of money, A, that we would have if we invested $2000 at 8% interest for 10 years compounded semiannually (twice each year)
asked by Haley 
College Algebra
Write an equation for the amount of money, A, that we would have if we invested $25,000 at 6% per year for 5 years compounded instantaneously.
asked by Haley 
maths
what is the distance around this rectangle?
asked by john brown 
maths
find the change from £3 after spending £1.40 and 80p.
asked by john brown 
statistics
conduct a study on support of ban on smartphones in class. 68/87 said yes. How large of a sample is needed to be sure the margin of error +/ 3.5% with 99% confidence. I know this is estimation...but I am not sure how to go about solving this problem.
asked by mel 
physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!
A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.3 m . The disc spins with an angular speed ω= 300 rad⋅s1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal. The
asked by Anonimus 
physics(URGENT!!!!!)
EDXers!!! Plz help with MITx 8.01x I don't know how to solve HW8 Problem 3 Question c) Can anybody help me???? Explain Plz
asked by Anonimus 
science
A 2.94 kg ball is attached to a ceiling by a 1.88 m long string. The height of the room is 5.05 m . The acceleration of gravity is 9.8 m/s2 . What is the gravitational potential energy associated with the ball relative to the ceiling? Answer in units of J
asked by meadowmere 
mit
A spacecraft of mass m is first brought into an orbit around the earth. The earth (together with the spacecraft) orbits the sun in a near circular orbit with radius R (R is the mean distance between the earth and the sun; it is about 150 million km). (a)
asked by jp 
Math
Solve and check each equation 1a. 12n=36 n=3 1b. n5=8 n=13
asked by Jerald 
dynamics
a 2kg ball revolves in a horizontal circle as shown at a constant speed of 1.5m/s. Knowing that L=600mm, determine (a) the angle that the cord with the vertical (b) tension in the cord.
asked by kit 
Economy (vehicles)
What is a biwheel vehicle?
asked by Zack 
Algebra, URGENT!!!
1) The first leg of a right triangle is 6 cm longer than its second leg. If the hypotenuse has a length of 8 cm, find the exact lengths of the two legs. First Leg: Second Leg: 2) The length of a rectangle is 10 m longer than its width and the area of the
asked by Bailey 
TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS
imageshack(.)(us)/photo/myimages/834/j6wv.jpg/ imageshack(.)(us)/photo/myimages/17/6n4x.jpg/ please PLEASE IM BEGGING YOU MY TEACHER WILL BE GIVING ME 79 IF I DIDN'T GET THIS .. OR ELSE LOWER THAN THAT. PLEASE
asked by BARBIE LEE 
Math
1.) You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have
asked by Lorri 
Math
6m3=21 m=4 g/4+7=10 How do I solve this one g/4 is suppose to be a fraction 3+2x=17 7
asked by Jerald 
Computers (internet)
How can I paraphrase: In the metropolis the recreational area was dilapidated.
asked by Samantha 
english
You are the phantom/ plague king who killed all the nobles in “The Masque of the Red Death” (lesson 4), and you have been captured and put on trial. Write a letter to the jury persuading them that the nobles deserved to die.
asked by Anonymous 
Math Properites
Mohammed copies this problem into his notebook (3.4x10^5)(3.8x10^9) A. Use the associateve and commutatitive properties to rearrange the factors. B. Find the product. Write the product in standard form.
asked by andra 
biology
Draw a picture of the structure of an atom that includes all the following: protons, neutrons, electrons, nucleus, orbitals
asked by anonymous 
Statistics
Given the following p values which would be considered more significant? a) p ≤ 0.3 b) p ≤ 0.02 c) p ≤ 0.25
asked by Anonymous 
Statistics
How could you reword these research hypotheses to null hypotheses? a. Smoking during pregnancy increase the risk of a child being born prematurely. b. Regular exercises in older adults decreases blood pressure levels.
asked by Anonymous 
Statistics
Create a null hypothesis for the following research questions: a. What are the differences between emergency room shifts on medication errors? b. On a clinical trial of a new drug, what will be the effects over a currently used drug?
asked by Anonymous 
Social studies
I need help on this one question on my homework. Would you please help me? How did the presidential plan for reconstruction differ form congresses plan? A congress believed it and not the president should have power over reconstruction. B the president
asked by Katey 
cal
Find the average value of the function on the given interval. f(x)= √x+2; [1,7]
asked by tony 
Math
What would the equation look like when the line is perpendicular to x+2y=10 and has a yintercept of 10
asked by Leah 
Chemistry(Dr.Bob222)
What does it mean for something do to be neutralized? Is that when the [H+]=[OH]? or is that totally wrong?
asked by K 
Math
What would the equation look like when the line is perpendicular to 2x3y+1=0 and has Y intercept of 2/3
asked by Leah 
Health (Ms. Sue)
Differentiate between environmentally spread diseases and diseases that are spread from person to person. By "environmentally," is it referring to food, water, and the environment or merely the environment?
asked by Anonymous 
Math
What would the equation look like when the line is perpendicular to 2x3=4y and has Y intercept of 5/4
asked by Leah 
Visual Literacy in Business CGD218
As stated in your textbook, “branding is equated with everything from creative strategy to logotype design. It is said to exist through sophisticated color palettes, product packaging and service trademarks. Some marketers insist that branding is
asked by EB 
Math
What would the equation look like when the line is parallel to y=2x+3 and has a Yintercept of 1
asked by Leah 
Geometry
Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter.
asked by Brittany 
College Algebra
Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00. Write an equation in standard form with integer coefficients that relates x and y.
asked by Haley 
ANALYTICAL CHEMISTRY
A 24h urine specimen was diluted to 2.000L and buffered to pH 10.0. A 10.00 mL aliquot was titrated with 27.32 mL of 0.003960 M EDTA. The calcium in a second 10.00 mL aliquot was iso;ated as solid CaC2O4, redissolved and titrated with 12.21 mL of the EDTA
asked by Anonymous 
Physical Science
3. Radioactive decay of nuclei often involves several decays before a stable nucleus is formed. This is called a decay chain. What stable isotope is formed when radon222 undergoes a decay chain of four alpha decays followed by four beta decays? (A)
asked by Adam 
Visual Literacy in Business CGD218
he textbook explains that, although counterintuitive, advertising should not focus on the product or service being sold, but should rather focus on the needs and desires of its target market. It quotes Michael Newman (2003) stating: “Don’t tell me
asked by Ms.B 
Math
What would the equation look like when the line is parallel to y= x+1/2 and has a Yintercept of 2
asked by Leah 
science
1. In this family, Noonan’s Syndrome is being caused by allele (a)______ in gene (b)______; specifically the Mutation with letter (leave off the “Mutation” and just give the letter) (c)______. 2. In this family, deafness is caused by a mutation in
asked by Joshua Sams 
Algebra 1
write in standard form y+4=1(x2) Can you explain how to get the answer
asked by Jynessa 
Math
What would the equation look like when the line is parallel to 2x3y=1 and has a Yintercept of 0
asked by Leah 
Math
What would the equation look like when the line is parallel to x=3y2 and has a Yintercept of 3/2
asked by Leah 
Math
What would the equation look like when the line is parallel to xy+1=0 and has a Yintercept of 3/4
asked by Leah 
Math quick question
Create a system of linear equations with this situation: Megan considers two different car rental options. One option costs $19 per day plus $0.12 per kilometre . Another option costs $42.50 per day for unlimited kilometres . Thanks :)
asked by Jenna 
Physics
Two blocks are attached together with a piece of string. Block #1 (3 kg) slides along a rough horizontal surface and block #2 (2 kg) hangs off the end of the surface. If the blocks accelerate at 2.5 m/s2 in the directions shown, determine the tension in
asked by Angie 
Language Arts Johnny Tremain
Has anyone here read the novel Johnny Tremain? If so, I will post my questions and answers.
asked by Anonymous 
Chemistry
how do i know which compounds to put the roman numeral in?
asked by Hanna 
ENGLISH
What are the PROS and CONS in the story of The Boston Photographs by Ephron short story??
asked by WONDA SMITH 
MATH  Standard Form
Mohammed copied this problem into his notebook. (3.4x10^5)(3.8x10^9) A. Use the associative and commutative properties to rearrange the factors. B. Find the product and write it in standard form.
asked by andra 
Psy/355
I need help with my research paper please. 700 to 1,050word paper in which you examine the concept of motivation. „h Address the following items: o Define motivation. o Identify at least two sources of motivation. o Explain the relationship between
asked by Nikita 
Physics
A 25 g bullet is fired from a rifle with a barrel of length 65 cm. The bullet starts from rest at one end of the barrel and experiences an average force of 1200 N due to the expanding gases as it moves down the length of the barrel. a) Calculate the work
asked by Angie 
cal
Find dy for the given values of x and Δx. y=4/x^4+3√x; x=4, Δx=.5
asked by tony 
into computers
Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control
asked by Ava 
Physics
Mars has a moon (Phobos) with an orbital period of 7.67 hours and an orbital radius of 9.4x106 m. Use Kepler’s 3rdLaw to estimate the mass of Mars.
asked by Angie 
Physics
A Jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane’s acceleration in g’s?
asked by Angie 
Math
1.) You have $22 in your bank account, and you deposit $11.50 per week. Your cousin has $218 in his bank account and is withdrawing $13 per week. The graph of this problem situation intersects at x=8. What does this mean? A. In 8 weeks, you will have
asked by Lorri 
math
A car with a sticker price of $42,850 with factory and dealer rebates of $5,100 Find the monthly payment if financed at 2.5% addon interest for 60 months.
asked by Anonymous 
English
"Eating flesh with razorsharp teeth" is how piranhas survive. prepositional phrase gerund phrase participial phrase appositive phrase A?
asked by Anonymous 
health care
Quality Improvement tools are the control chsrts or fishbone diagram. The quality measurement tools to measure things like patient falls would be like CMS or the Joint Comission. I do know if I am correct or not Thank You
asked by Mary 
Chemistry
PLEASE HELP! I was just wondering why it is important to add an NaOH pellet to a nucleophile containing solution with ethanol before adding an electrophile.
asked by Anon 
Physics
A 10 kg penguin slips down a rough incline of 35o . If the coefficient of kinetic friction between the penguin and the incline is 0.15, determine the penguin’s acceleration.
asked by Angie