All Questions ⁺⁰238129 Questions

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690

1

Car Travel

The radius of each wheel of a car is 25 cm. If each wheel rotates 15 times per second, how many metres does the car travel per second? (Take pi = 3.14. Round off the answer to the nearest whole number.)

Guest Jan 16, 2017

0

725

3

2014 to the power of 14

2014 to the power of 14

Guest Jan 16, 2017

0

883

3

+4

These are so annoying with lots of complicated steps

A railway wagon with a mass of 20 tonnes is moving along a level track at 10 km/h when it collides and couples together with a second wagon with a mass of 25 tonnes moving in the same direction at 5km/h. If the two wagons couple together after the impact, read more ..

QuestionMan Jan 16, 2017

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703

1

3x-8>2x+3(3x) =

3x-8>2x+3(3x)????

Guest Jan 16, 2017

0

515

1

please help urgent!!

the speed of an electron in orbit about the nucleus of a hydrogen is 2.2x10^6 m/s. it takes 1.5x10^-16 s for the electron to complete one orbit. calculate the radius of the orbit

Guest Jan 16, 2017

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1260

2

Suppose h(t) = -3t^2 + 12t + 4 is an expression giving the height of a diver above the water (in meters), seconds after the diver leaves the springboard. a.

Suppose h(t) = -3t^2 + 12t + 4 is an expression giving the height of a diver above the water (in meters), seconds after the diver leaves the springboard.

a. How high above the water is the springboard? Explain how you know.
b. read more ..

Guest Jan 16, 2017

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714

1

adj=10 opp=100 hyp=?

adj=10 opp=100 hyp=?

ElectricPavlov ●

Guest Jan 16, 2017

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3631

1

(I'm having trouble answering this word problem, please help me)

(I'm having trouble answering this word problem, please help me)
Susan is looking into a new cell phone carrier. She researches her options and finds the two companies which off the best reception in her neighborhood offer very different monthly read more ..

ElectricPavlov ●

Guest Jan 16, 2017

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683

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equation

Guest Jan 16, 2017

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640

1

Absolute Value

how do you find absolute value

Guest Jan 16, 2017

0

836

3

+63

some1 please..

Una has a collection of insects: 1/4 are butterflies, 2/7 are moths, and the rest are beetles.
HOW MANY INSECTS ARE BEETLES?

coolboy21 Jan 16, 2017

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1164

2

2x+y+3z=-12

2x+y+3z=-12
3x-2y-z=3
-x+5y+2z=-3
read more ..

Guest Jan 16, 2017

0

619

1

Hello

Guest Jan 16, 2017

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738

1

Apples

If I have 33 apples and Lauren has 5 times as much. How many apples does Lauren have?

Guest Jan 16, 2017

0

931

2

+63

omg this question

tyler bought 7/6 meters of ribbon. she needs 2/5 meters to warp her brother's peresnt and 3/4 meters to warp her sister's present. DID SHE HAVE ENOUGH?

coolboy21 Jan 16, 2017

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1901

3

Help again

A pile driver hammer of mass 150 kg falls freely through a distance of 5m to strike a pile of mass 400kg and drives it 0.075m into the ground. The hammer does not rebound when driving the pile. Determine the average resistance of the ground.
read more ..

Guest Jan 16, 2017

0

652

1

+234

help x 2386285624

pls help x3 Unit digit of: 2^857+3^927 and (diff Question) 2^857*3^927 Please show all work :) ty

HelpMeWithThisPlease Jan 16, 2017

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