Robert J.

09/05/13

How long will it take?

A child rolls a ball up a hill at 4.24 m/s. If the ball experiences an acceleration of -1.32 m/s^2, how long will it take for the ball to have velocity of 2.23 m/s down the hill?

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Math Equations

09/05/13

How would i simplify the following radical expressions?

√48 =?√x^6y^7=?

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Physics

09/04/13

How high does it go?

A ball is thrown up at velocity of 50.0 m/s. Consider no air resistance. a) How much time does it take to reach its maximum height? b) How high does it go? c) How fast is it going when it... more

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Physics

09/04/13

What distance?

A can of tuna is dropped from a building. If the can takes 3.2 seconds to strike the ground, what distance did it fall?

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Physics

09/04/13

What was its initial speed?

A ball is thrown straight up, it rises 12.5 m before it starts falling back down. a) What was its initial speed? b) How much time is it in the air?

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Physics

09/04/13

How much time?

A truck falls off a cliff. If the cliff is 33.5 m high, how much time for the truck to reach the bottom?

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Trigonometry

09/02/13

How do I find the Tangent if Sine is equal to (4/9)?

I need help on finding Tangent

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Word Problem

09/02/13

How long will it take for Henry to catch up?

Sarah and Henry are reading the same book. Sarah reads 1/3 page per minute and Henry reads 3/4 page per minute. Sarah has already read 70 pages while Henry has read 30. If they both resume reading... more

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Inequalities

09/02/13

Why do you have to reverse inequality signs when you divide or multiply both sides of the inequality by a negative number?

Please explain via graphs and/or algebra

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Algebra 1

09/01/13

Identify the solution(s) of the system of equations 6x+4y=2 and y=5-3x

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Other

08/29/13

factor polynomial w^3 -3w^2 - 18w

please provide detailed steps of factoring

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Functions And Domain

08/29/13

f(x)= square root of 2x^2-1

what is the domain of this function √2x2-1

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Algebra Midpoint

08/27/13

Find the point B if M is the midpoint of the line segment joining points A and B.

A(−1, −8), M(6, −1) Using these two points I have to figure out what B is. I'm not terribly good at math and I would love to know how to do this.

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Absolute Value

08/26/13

|x-4|+|x-3|

Write the expression |x − 4| + |x − 3| without the absolute-value symbols if x is in the given interval. (−infinity, 1)

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Absolute Value

08/26/13

|y-x|-|x-y|

Write the given expression without the absolute-value symbols.

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Algebra 2

08/26/13

5x^2 + 8x -69=0

5x^2+ 8x -69=0 solve by factoring

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Other

08/26/13

Containing solution of juice.

Solution contaning 30% juice is mixed with a solution containing 10% juice to make 100 gallons of soluion that is 12% juice. How much of 30% solution was use?

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Algebra Word Problem

08/25/13

Word Problem

Mrs. Lewis needs to buy two types of grain, oats, and barley to mix as a feed supplement for her cattle. She has $4275 to spend on grain and wants the mixture to be 3 parts oats and 2 parts barley.... more

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Word Problem

08/25/13

What are the dimensions of the pool?

A particular rectangular swimming pool is twice as long as it is wide. There is a concrete walkway around the perimeter of the pool. The walkway is a constant feet wide. The walkway has an area of... more

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