Ira S.

Dr. Dice spends a lot of time on the streets betting unsuspecting patrons with games involving dice. In one game, he won when he bet that in four rolls of a die, he could get at least one six.... more

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Dog

12/10/15

If it takes a big pump 3 hours to drain a pool and 12 hours with a small pump. How long will it take to drain a pool with both

3 hours to drain pool with a big pump. Same pool takes 12 hours to drain pool. How long to drain the pool with both pumps.

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Precalculus

12/10/15

Determine the inverse

F(x)=x^2+9;x is greater than or equal to 0

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College Algebra Word Problem

12/10/15

Help please?

Suppose Tom has 24 coins totaling $3.75. If he has only dimes and quarters, how many of each type does he have?

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Algebra Word Problem

12/10/15

A team played 20 games total. They won 4 more games than they lost. How many games did they win? How many games did they lose?

We do not understand the question. If they played 20 games total, won 4 more than they lost, couldn't how many they won and lost be multiple answers? They say there is 1 answer.

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English

12/10/15

english summary

Which of the following is a proper noun and therefore should be capitalized? a) giraffe b) high school c) pacific ocean d) orange truck

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Algebra 1

12/09/15

recursive formula

write a recursive formula for a(n) = -8n+7

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Slope Of Tangent Line To A Curve

12/09/15

Y^3 + y^2 x^2-6 what is the slope of the line tangent to the curve at (2,1)?

What is the slope of a line tangent to y ^3 + y^2x^2 -6 at the point (2,1)

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Algebra Word Problem

12/09/15

I ate lunch and the bill was $22. If tax was 5.25% and I want to leave 15% of the bill (including tax) for tip, how much will the total price be?

Do you find 15% of $22 or 5.25% of $22 and then 15% of $22?

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Rational Expressions Simplifying Rational Expressions And Equations

12/09/15

problem solving using rational equations

In 5 hours, a secretary can address 100 envelopes. Another secretary can address 100 envelopes in 7 hours. How long would it take the secretaries, working together, to address 400 envelopes? (Hint:... more

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Constructed Response

12/08/15

write a possible equation for a rational function with a hole at x=2 and a vertical asymptote at x=-3 and at least one zero

A hole in a rational function at x=2 means

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Math Word Problem

12/08/15

Area of Triangle inside Rectangle

A rectangle has an area of 72in2. The lines from the top left intersects the right side and bottom side at half their lengths to form a triangle inside the resctangle. What is the area of the... more

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Calculus

12/08/15

Word Problem

A 13 ft ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft from the house, the base is moving at the rate of 5 ft per second. (a) How fast is... more

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#geometricsequence

12/03/15

Roger receives 800 Australian dollars for 610 euros. Calculate the value of the US dollar in Australian dollars

The exchange rate from US dollars to euros is given by 1 USD=.753 Euros.

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Calculus

12/03/15

Using the distance formula to find a point

Find the point on the line –3x+3y–2=0 which is closest to the point (–5,0)

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Multivariable Calculus

12/01/15

which of the following is divisible by all of the integers from 1 to 10 inclusive? A)2334 B)34 45 C) 4556 D) 5667 E)67*78

This is a hard question whaich found in UKMT question test online

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Algebra 2

11/29/15

Algebra 2 Problem about degrees of angle and height of a tree.

A tree leans 8 degree from vertical. At a point 32 meters from the base of the tree the angle of elevation to the top of the tree is 33 degrees. Find the height of the tree.

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Physics

11/29/15

What is the resultant vector (including direction) of a vector 8 m/s 40 degrees North of West and a vector 3 m/s West ?

Not really sure how to answer this problem if anyone can help I'd appreciate it, thank you!

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Math Symatry

11/29/15

How many degrees can a regular pentagon be rotated about its center so that it remains unchanged

This is for marh, but the book does not explain it.

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Dimensions Maximum Area

11/13/15

A police officer seals off the scene of an accident using a roll of yellow tape that is 396 feet long.

What dimensions should be used to seal off maximum rectangular area around the collision? And find the maximum area

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Other

11/13/15

A city's transit authority serves 168,000 commuters daily when the fare is $1.70.

Market research has determined that every penny decrease in the fare will result in 1,050 new riders. What fare will maximize revenue?

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Parabolas

11/13/15

F(5,0) directrix y=-4

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In interval notation, when is demand price greater than supply and when is supply price greater than demand: D(p)=-1000p+3000;S(p)=1200p-8000?

a boy is 12 years old. his father is four times old. In x years' time, the father will be three times as old as the son. calculate the value of x.

What would be a good story starter for a scary book about this little girl named emma and how one day her nightmare came true?

Dr. Dice spends a lot of time on the streets betting unsuspecting patrons with games involving dice.

If it takes a big pump 3 hours to drain a pool and 12 hours with a small pump. How long will it take to drain a pool with both