Saturday

May 28, 2016
**math **

Two cell phone companies have different rate plans.Runfast has monthly charges $25 plus $10 per gig of data.B A&D’s monthly charge is $18 plus 15 per gig of data. Your task is to determine under what circumstances each company has the better pricing. You will derive and ...
*Friday, April 22, 2016 by Help please*

**Social Studies (please check ms. sue)**

1. Why did farm prices fall in the 1950’s? a. Farmers bought new expensive machinery b. Farmers produced more than they could sell*** c. Farmers could not sell their products in Europe d. Farmers saw their government subsidies reduced 2. What shortage was created by the-...
*Friday, April 22, 2016 by SpitFireRedHead*

**science**

find the energy of first excited state of helium
*Friday, April 22, 2016 by annie*

**Physics**

In order to construct a fort in your backyard, it is critical that you calculate location of the centre of mass of three sticks in particular, each of which is identical with mass 2.5 kg. The first stick is located on the x-axis and is placed from x = 0 to x = 1.3 m. The ...
*Friday, April 22, 2016 by Amber*

**Math**

We can find the solutions of sin x = 0.6 algebraically. (Round your answers to two decimal places.) (a) First we find the solutions in the interval [0, 2π). We get one such solution by taking sin−1 to get x = ________ (smaller value). The other solution in this ...
*Thursday, April 21, 2016 by Jennifer*

**Calculus**

What did I do wrong? An object is formed so that its base is the quarter circle y = sqrt(64 − x^2) in the first quadrant, and its cross sections along the x-axis are squares. What is the volume of the object? (Assume the axes are measured in centimeters.) I have already ...
*Thursday, April 21, 2016 by Ana*

**Teacher aid technology in class classroom **

Does anybody have the 20 questions
*Thursday, April 21, 2016 by Peaches *

**Language Arts**

*Clean start, I'll also explain my answer choices. Be still, sad heart! and cease repining; Behind the clouds is the sun still shinning; thy fate is the common fate of all, into each life some rain must fall some days must be dark and dreary 1. from the context, what do ...
*Thursday, April 21, 2016 by Tim*

**Bio**

Bryozoans are coral like sea nimals These organisms first appeared in the fossil record about 140 million years ago and remained relatively unchanged for 40 million years. Then they experienced a great diversification Which process does this illustrate A.graduallism B....
*Thursday, April 21, 2016 by Anonymous*

**utah state history**

Please help Fill in the blank 1.The (blank) settlers were the first ones to develop agricultural practices that were adapted to the arid west. 2.The invention of the (blank) made it possible for farmers to farm much bigger plots of land. 3.The practice of (blank) made it ...
*Thursday, April 21, 2016 by isabella*

**history please help **

1. Why did farm prices fall in the 1950’s? a. Farmers bought new expensive machinery b. Farmers produced more than they could sell** c. Farmers could not sell their products in Europe d. Farmers saw their government subsidies reduced 2. What shortage was created by the-...
*Thursday, April 21, 2016 by Help please*

**maths**

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous...
*Thursday, April 21, 2016 by Emma*

**wave optics**

A double slit arrangement is illuminated first with red, then with blue light. a. which one has wider fringes? b. which one produces more fringes?
*Thursday, April 21, 2016 by Erza*

**wave optics**

A double slit arrangement is illuminated first with red, then with blue light. a. which one has wider fringes? b. which one produces more fringes?
*Thursday, April 21, 2016 by Anonymous*

**Math**

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 6% of the amount of oil remaining per year. Here, "instantaneous" refers to ...
*Wednesday, April 20, 2016 by PLEASE HELP ASAP*

**Math**

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous" refers to ...
*Wednesday, April 20, 2016 by Please help!*

**Social studies**

Byzantine civilization was based on Roman traditions at first, but eventually was much more influenced by _________ culture. German Greek** Slavic Egyptian I need help asap!
*Wednesday, April 20, 2016 by Sally*

**Math**

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous" refers to ...
*Wednesday, April 20, 2016 by Please help!*

**english**

identify what the second metaphor compares Our song is a slamming screen door Sneakin' out late, tapping on your window When we're on the phone, and you talk real slow Cause it's late and your mama don't know Our song is the way you laugh, on the first date Man...
*Wednesday, April 20, 2016 by sun*

**Math**

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous" refers to ...
*Wednesday, April 20, 2016 by HELP!!!!*

**technolgiy**

Lines are used in design to? Choose all that apply. 1:create movement 2:lead the eye across the page 3: describe the relationships between certain colors 4:divide a page into sections. Please help me this is my first time using this website to ask a question thank you.
*Wednesday, April 20, 2016 by leedle leedle*

**Further maths**

The first thirdd and ninth terms of am AP are the first three terms of a GP. If the seventh term of AP is 14, calculate (a) the 20th term (b) the sum of the first twelve terms of the GP
*Wednesday, April 20, 2016 by Olivia*

**Statistics**

. Two cards are drawn at random, without replacement, from a standard 52-card deck. Find the probability that: (a) both cards are the same color (b) the first card is a face card and the second card is black
*Wednesday, April 20, 2016 by Joan*

**AP**

. Plant -+ Deer --+ Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the plant made. I am ...
*Wednesday, April 20, 2016 by Mary*

**English**

Andy and Kate are really good singers. They can dance well,too. --------------------------- What does the first sentence above mean, #1 or #2? 1. They are prefessional singers and they sings well. 2. They are not professional singers. They just sing songs well.
*Wednesday, April 20, 2016 by rfvv*

**Physics**

The Atwood Machine consists of two masses suspended form a fixed pulley. If the first mass is 0.55kg and 0.8kg, (a) what is the acceleration of the system? (b) What is the magnitude of the tension in the string? (consider the pulley to be frictionless and the masses of the ...
*Wednesday, April 20, 2016 by Raphael Grenfell*

**Calculus**

Let 𝑆 be the region (in the first quadrant) bounded by a circle 𝑥^2 + 𝑦^2 = 2, 𝑦^2 = 𝑥 and the 𝑥-axis (ii) Find the volume of the solid generated by rotating the region 𝑆 about the 𝑦-axis (c) Find the surface area...
*Wednesday, April 20, 2016 by Desperate Student*

**Math**

A high school has 438 students with about the same number of males and females. Describe a simulation to predict how many of the first 50 students who leave school at the end of the day are female.
*Tuesday, April 19, 2016 by Emily*

**physics**

A 0.280 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? (b) What fraction of the original kinetic energy (ΔKE/KE) ...
*Tuesday, April 19, 2016 by GG*

**math**

Mike was bored so he played with some colored blocks arranging them in a role he put 1 block in the first row 2 blocks in the second roll, 4 blocks and the third row and 8 blocks in the fourth row. If this pattern continues, how many blocks will Mike put in the 17th roll?
*Tuesday, April 19, 2016 by mike*

**math**

Glenn raced his motorcycle 30 times last season. He finished first 12 times, second 5 times, and crashed in 9 races. What percent of the races did he finish second ? Set up as a proportion and solve
*Tuesday, April 19, 2016 by jacob*

**Social Studies**

1. In the civil War, for the first time, thousands of Women served as____. A. Soldiers B. spies*** C. generals D. nurses 2. "Peace Democrats" became known as______. A. war hawks*** B. rebels C. copperheads D. radicals 3. What guarantee gives accused individuals the ...
*Tuesday, April 19, 2016 by bunny64*

**Further maths**

The first term of an AP is equal to thrice the common difference. What is the sixth term of the AP,if the common difference is 8
*Tuesday, April 19, 2016 by Emmanuel*

**science**

1. Under which of the following conditions would a fossil most likely form? A. A living thing dies and sediment is very slowly deposited on top of its body. B. A living thing dies and sediment quickly covers its body. C. A living thing dies and its skeleton is left exposed to ...
*Tuesday, April 19, 2016 by Help please*

**Math**

Mona takes out a $12,000 student loan to help pay for her first 2 years of college, then 2 years later needs another loan for $14,000 to get her through to graduation. She graduates 4 years and 9 months after acquiring the first loan, and payments are deferred until 6 months ...
*Tuesday, April 19, 2016 by Anonymous*

**U.S. History (Check)(REED)**

1. What day was the attack on Pearl Harbor? A: The attack on Pearl Harbor took place on December 7, 1941. 2. Why was the attack so devastating for America? A: The Pearl Harbor attack was so devastating for America because most of the U.S. Navy was destroyed and 2,403 Americans...
*Tuesday, April 19, 2016 by Victoria*

**Algebra **

The second side is 10 more than the third side and the first side is 6 less than the third side. What are the sides of the triangle if the perimeter is 64yd?
*Monday, April 18, 2016 by Olivia*

**HISTORY HELP plsssssssss**

Use this map to answer the following question: This image shows a map of South America. The western coast is shaded blue. There are four numbers marking different areas on the coast. The first number marks an area at the very top of the shaded area. The number 4 marks the area...
*Monday, April 18, 2016 by Oscar*

**Physics**

one charge of +10 uC is placed at the origin, a second charge of +5uC is placed at (2cm, 4cm) and a third charge (-15 uC) is placed at (4cm, 1 cm). What is the magnitude and direction of the electric force exerted on the first charge by the other two? I drew out the triangle, ...
*Monday, April 18, 2016 by Alec*

**Math**

1. A bag contains 9 tiles numbered 1 to 9. P(4) = (1 point) experimental; the result is found by repeating an experiment. experimental; the result is based on the number of possible outcomes. theoretical; the result is found by repeating an experiment. theoretical; the result ...
*Monday, April 18, 2016 by Me*

**American History **

Joseph Stalin was motivated to sign a nonaggression pact with Hitler. A,the Soviets’ need for economic and military aid B.Stalin’s desire to gain control of Eastern Europe c.Stalin’s sense that he needed to preempt a Nazi invasion. D.The need for an ally given ...
*Sunday, April 17, 2016 by Angie*

**Physics**

Brett stats from rest on his skateboard and accelerates at 0.5 m/s2 [N] for 12s, and then maintains his velocity for 15s before falling off his board. He slides along on his back until he comes to rest, accelerating at -2.4 m/s2. a) Calculate the highest instantaneous velocity...
*Sunday, April 17, 2016 by Nancy*

**Algebra **

The first side is triple the second side and the third side is five times the second side. What are the sides of the triangle if the perimeter is 72ft?
*Sunday, April 17, 2016 by Olivia*

**Scince**

Which metel particles are the first to react the heat
*Sunday, April 17, 2016 by Salma*

**Physics**

A string is 2.4 m long, and the speed of sound along this string is 450 m/s. Calculate the frequency of the wave that would produce a first harmonic. Assume the string has nodes at both ends. What I've Tried Ln=2.4m v= 450 m/s f=? n=2 Ln=(4-1)/4 * Wavelength Wavelength = 2...
*Sunday, April 17, 2016 by AlphaPlus*

**english first additional language**

why tradional healers must not be allowed in hospitals and clinics ?
*Sunday, April 17, 2016 by lungile*

**Calculus (Im I Doing This Right???? Im Unsure)**

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h - (2x^2-6x) =4xh+2h^...
*Saturday, April 16, 2016 by Marc*

**Further math**

If the sum of the first n terms of the series 4 + 7 + 10 + ... is 209, find n.
*Saturday, April 16, 2016 by Ayomide*

**Calculus (Im I Doing This Right???? Im Unsure)**

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h - (2x^2-6x) =4xh+2h^...
*Friday, April 15, 2016 by Marc*

**US HISTORY**

Which of the following best describes the Cherokee's main argument in the Cherokee Nation v. Georgia case? The Cherokee testified that U.S. officials had unfairly tricked them into giving up their land. The Cherokee argued that because they lived in the territory first, ...
*Friday, April 15, 2016 by abby*

**history**

What was the main result of the invention of the Clermont in 1807? This steamboat built by Robert Fulton helped speed up industrialization and increase interest in canal and river transport. This passenger train built by Henry Ford provided immigrants an easier way to move ...
*Friday, April 15, 2016 by abby*

**Psychology**

What kind of disorder does this person. I think he have schriozophenia. Mr. Jameson is a white 42-years old man who has never been married and is currently unemployed. He was brought to the emergency room by the police for striking an elderly woman in his apartment building. ...
*Friday, April 15, 2016 by Moe*

**Algebra**

During the first part of a trip, a canoeist travels 28 miles at a certain speed. The canoeist travels 9 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hrs. What was the speed on each part of the trip?
*Friday, April 15, 2016 by Mai*

**Math**

Write the first trigonometric function in terms of the second for θ in the given quadrant. tan(θ), cos(θ); θ in Quadrant IV I believe to start this is 1/cos^2*theta. Am I write? If not, can you please help me?!
*Thursday, April 14, 2016 by Jennifer*

**Calculus **

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2− 6x at x = 3
*Thursday, April 14, 2016 by Marc*

**Math**

The drama club is trying to raise $1428. On the first day they sell 12 tickets. They sell 4 more each day. Each ticket costs $3.50. Than how long is it going to take them to get to their goal?
*Thursday, April 14, 2016 by Areej*

**maths**

A car completes a trip in 20 minutes. for the first half of the trip the speed of the car was 100km/h and the speed for the second half of the trip was 90km/h. How far did the car travel (in km) if the distance for the first part is the same as the second part
*Thursday, April 14, 2016 by lala*

**Stats - Help!!!**

A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The ...
*Thursday, April 14, 2016 by Angela*

**Stats - Help!!!**

A student wanted to know the favorite lunch at a large high school with a closed campus. What is the first step in conducting a statistical study to answer the question? A. Select a random sample of students. B. State the goal of the study precisely. C. Select a random sample ...
*Thursday, April 14, 2016 by Angela*

**U.S. History (REED)(Check, Please!!!)**

Write a paragraph on the similarities and differences of isolationism and internationalism. Then write another paragraph explaining the different reasons why the United States did not want to get involved with the problems of Europe (practice neutrality). Also, include what ...
*Thursday, April 14, 2016 by Victoria*

**physics**

1- Describe an imaginary process that satisfies the first law but violates the second law of thermodynamics. 2-Describe an imaginary process that satisfies the second law but violates the first law of thermodynamics.
*Thursday, April 14, 2016 by Ehab*

**Math**

A person went shopping and spent 5/8 of his money in the first store and then spent 1/5 of the remainder in the second store. If he spent $60 in the second store, how much did he have at the start and how much did he have left? I got a 240 but I am confused as to what it means...
*Thursday, April 14, 2016 by jigsaw*

**chemistry**

given 0.0450 M ca(no3)2 and 0.0350 M fe(no3)2. when i seperate them, which compound should be used? Na2co3(aq), Hcl(aq), or naoh(aq)? . and which will precipitate first? I went with hcl, and for question two, fe^2+
*Thursday, April 14, 2016 by anonymous1*

**Dosage calculations - Bob, please help**

Weight - 20 pounds 6 ounces Ordered dose - 1.5mg per kilogram per day recommended dosage from drug label - 3mg every 8 hours. 1.What is the individual dose? to find the individual dose i'll first convert pounds to kg which is 9.26 kg. I will then multiply 1.5 x 9.26 = 13....
*Wednesday, April 13, 2016 by John*

**Stats**

A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The ...
*Wednesday, April 13, 2016 by Angela*

**algebra**

A car dealer recently had a promotion which they gave an 8% discount to the first 50 people through the door. If you are one of those people and the car you are interested in cost $25,300.00, find the discount amount and the new price of the car.
*Wednesday, April 13, 2016 by Duran*

**global history**

The barbarians have broken through the ramparts. The Saracen [Moors} invasions have spread in successive waves over the South. The Hungarians swarm over the Eastern provinces...they sacked town and village, and laid waste the fields. They burned down the churches and then ...
*Wednesday, April 13, 2016 by Castermans.m*

**Statistics**

A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The ...
*Wednesday, April 13, 2016 by Angela*

**English**

1. Englishmen expected to have a ___ in their government. 2. The __ was the first legislature in the Jamestown colony. 3. The Massachusetts colonist legislature was the ____. 4. In Pennsylvania, England gave _____ to William Penn. 5. Even though the governor and large council ...
*Wednesday, April 13, 2016 by Steve*

**utah state history**

fill in the blank 1.The (blank) settlers were the first ones to develop agricultural practices that were adapted to the arid west. 2.The invention of the (blank) made it possible for farmers to farm much bigger plots of land. 3.The practice of (blank) made it possible for ...
*Wednesday, April 13, 2016 by isabella*

**MATH**

Your friend asks you to help cut grass this summer and will pay you 2 pennies for the first job. You agree to help if he doubles your payment for each job completed. After 2 lawns, you will receive 4 pennies, and after 3 lawns, you will receive 8 pennies.
*Wednesday, April 13, 2016 by RAWAA*

**Math plz help!!!!**

Which of the following types of information is not suited for display on a double bar graph? populations of boys and girls at three different schools number of records versus compact discs sold each week during a one month period at The Music Den the weekly interest rate ...
*Wednesday, April 13, 2016 by Queen/Halle *

**Pre Algebra, Check my answers?**

You roll a number cube numbered one to six 12 times. P(5) = two over three. What type of probability is illustrated and why? (1 point) experimental; the result is based on the number of possible outcomes ** experimental; the result is found by repeating an experiment ...
*Wednesday, April 13, 2016 by Louie*

**Math**

A recipe ask for 2/3cup of water and they want to triple the recipe. How do I show the work. What is the first step to get the answer.
*Wednesday, April 13, 2016 by Jim*

**Algebra**

Justine earned $26,000 during the first year of her job at city hall. After each year she received a 3% raise. Find her total earnings during the first five years on the job.
*Wednesday, April 13, 2016 by Angel*

**Probability**

mary shots free throws 70% on average. She is fouled shooting a three point shot and therefore gets 3 free throws. What is the probability she: *makes first misses seconds and third shots *Makes at least 1 shot *Makes at least 1 shot, given misses first * misses first, given ...
*Wednesday, April 13, 2016 by Shylea*

**Math**

mary shots free throws 70% on average. She is fouled shooting a three point shot and therefore gets 3 free throws. What is the probability she: *makes first misses seconds and third shots *Makes at least 1 shot
*Wednesday, April 13, 2016 by Shylea*

**math**

the first, second, and third terms in the geometric progression are k,k-6, 2k-28 respectively. given that all terms of the geometric progression are positive, calculate the value of constant k.
*Wednesday, April 13, 2016 by jack*

**Physics**

A 5kg box is pulled for a distance of 12m with a force of 20N along frictionless surface. The force is applied at an angle that is 15 deg. above the horizontal. a.) how much work was done by the applied force? b) how fast will the box be moving at the end of the 12m if it ...
*Tuesday, April 12, 2016 by Anne*

**Math **

What angle in the first quadrant could you reference to help you find sine and cosine of each of the following angles ? 330 120 113 203
*Tuesday, April 12, 2016 by Aria *

**Math/geometry**

Two angles are complementary.the second angle has 6 more than three times the measure of degrees as the first one. Find the measure of each angle using an equation. Define your variables. I didn't get what the two variables should be... And how I'd write the equation ...
*Tuesday, April 12, 2016 by Sonja R*

**Maths Please help**

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous...
*Tuesday, April 12, 2016 by Sahna*

**Maths Ms sue **

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous...
*Tuesday, April 12, 2016 by Jay*

**Pre Algebra**

1. Which of the following is an example of a dependent event? (1 point) flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream choosing a cookie at random, eating it, and then choosing another at random 2. Which of the following is an ...
*Tuesday, April 12, 2016 by Summer*

**Chemistry**

When titrating 50.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the 1st equivalence point? I am confused... What H2A problem? Chemistry-Dr.Bob222 - DrBob222, Tuesday, April 12, 2016 at 1:49am Refer to the H2A problem above BUT you only...
*Tuesday, April 12, 2016 by Nevaeh*

**U.S. History (Check)(Reed)**

Write a paragraph on the similarities and differences of isolationism and internationalism. A: Isolationism and internationalism are distinctly different from each other. Isolationism is the policy of avoiding involvement in world affairs, whereas internationalism is the ...
*Tuesday, April 12, 2016 by Victoria*

**Math**

2.)Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden produced 4 bulbs. In the second year, it produced 8 bulbs, and in the third year, it produced 16 bulbs. If this pattern continues, how many ...
*Tuesday, April 12, 2016 by #FreeGucci*

**Algebra**

One crew can frame a single story house in 7 days, while a second crew can do it in 5 days. how long will it take to frame a single house if the second crew arrived 2 days after the first. Im having problems setting it up with the 2 days after the first
*Tuesday, April 12, 2016 by Leonard*

**Math**

Is the LCD of x/2x-4 and 5x/12x-24 not 24(x-2)? The original question is x/2x-4 + 5x/12x-24 and I factored the denominators first so that I could find the LCD. And I got: x/2(x-2) + 5x/12(x-2) After that, I multiplied up to the LCD and got: x/2(x-2) + 5x/12(x-2) = x/2(x-2)*(12...
*Tuesday, April 12, 2016 by Emily J*

**help!!**

An investment banker received a bonus and invested that money in two investments. He put a certain sum of money in the first investment that returned 7% interest after one year. In the second investment he invested four times that of the first investment and got a 13% interest...
*Monday, April 11, 2016 by Anonymous*

**Word problem middle school**

Kirk loves furbies. He has 68 curviest, each of which cost 50 percent more than the last, owing to scarcity. If his first furby cost $4, how much did his first 3 cost all together?
*Monday, April 11, 2016 by Laniqua*

**Geography**

What supranational organization is India a part of? I had ASEAN at first, but then I realized they aren't a part of it
*Monday, April 11, 2016 by Anonymous*

**maths help!??**

A man run a distance of 9km/hr for a distance of 4km.And 2km/hr for the rest of the distance.The whole run takes him 1hour.his average speed for the first distance in 4km is?
*Monday, April 11, 2016 by philip!!!*

**Physics**

You’re riding your bicycle first west a distance of 7.7 km, then south a distance of 14.1 km. (a) In what direction does your average velocity vector point, in degrees south of west? (b) If the total trip took 18.3 minutes, what is the magnitude of this average velocity, ...
*Monday, April 11, 2016 by Bira*

**Physics**

A ball is tossed upward and returns to its original position after 19.7 seconds. If another ball is thrown at an angle of 41.4 degrees above the horizontal, at what speed, in m/s, must it be thrown such that it returns to the same height at the same time as the first ball?
*Monday, April 11, 2016 by Bira*

**Math**

A web-site asks users to create a 5-symbol PIN code where first and second symbols are any letters from the English alphabet and next 3 symbols are any digits. How many different PIN codes can be created?
*Sunday, April 10, 2016 by I need help*

**math**

in 2000, the population of a town was 8914. the population expected to grow at a rate of %1.36 each year. in what year will the population first exceed 15000? my answer:2007
*Sunday, April 10, 2016 by Anonymous*

**science**

a car with two passengers travelling at 15m/s collides with a tree. one of the passengers who is not wearing a seat belt strikes the windshield head first and comes to rest in 0.03 s. the area of contact between the head and the windshield is approximately 5 X 10 to the power ...
*Sunday, April 10, 2016 by Christoper*

**maths**

The 12th term of exceeds the 3rd term by 36 of an a.p If it's 16th term is 64 find first term and common difference
*Sunday, April 10, 2016 by hetal*

**Math**

A railway engine starts shunting wagons by first going 1000 m North of railway station. It reverses and travels 1250 m South and then it again moves 600 m north. Finally moving 800 m South it comes to rest. How far is the engine from the station and in which direction?
*Saturday, April 9, 2016 by Kuntal Roy*