12/21/14

Trigonometric Right traingle
A woman standing on a hill sees a flagpole that she knows is 45 ft tall. The angle of depression to the bottom of the pole is 14°, and the angle of elevation to the top of the pole is 18°. Find her... more
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12/19/14

Family to split $300 gift. Each parent to get twice as much as each child.
2 parents 3 children
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12/18/14

i need the equation and this is all positive
a river is 5 feet deep. due to rainfall and resulting runoff from the surrounding hills, the depth of the river rises six and one half feet after three inches of rainfall. assume the depth of he... more
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12/17/14

what is the standard form of the line that passes through the point (1, -3) and is parallel to the line y = 2x+1
math question - algebra
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12/17/14

a recipe calls for 1/2 of ingredient A for every 1 2/5 cups of ingredient B. You use 2 cups of ingredient A. How many cups of ingredient B do you need?
I cannot seem to understand this problem. This is also on my semester exam review homework.
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12/16/14

Jake jumps with an initial velocity of 8ft/sec, and Jake weighs 150 pounds, Calculate...
Jake jumps with an initial velocity of 8ft/sec, Jake weighs 150 pounds.   1. What is his hang time on the moon and on the earth. Keep in mind the moon has 1/6 the gravitational pull of the... more
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12/12/14

Which of the following is the equation of a line parallel to the line y = 4x + 1, passing through the point (5,1)?
9. Which of the following is the equation of a line parallel to the line y = 4x + 1, passing through the point (5,1)? 4x + y = -19 4x - y = 19 -4x - y = 19 4x + y = 19 10. Which of the following... more
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12/04/14

Chemistry Question, I need some help please
This question is about the reaction 4HCl(g)+O2(g)-->2H20(g)+2Cl2(g)A) Using the values of ΔfH°, find the standard heat of the reaction of this reaction.B) Using average bond energies, estimate... more
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12/04/14

At the end of a year he has earned $960 in interest. How much is invested at each rate?
Levi invests $11000 in two accounts, the first pays 3% simple interest, the second pays 12% simple interest. At the end of a year he has earned $960 in interest. How much is invested at each rate?
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12/04/14

How much heat is absorbed?
When 1 mole of CS2 (l) forms from its elements at 1 ATM and 25 degrees C, 89.7 KJ is absorbed, and it takes 27.7 kJ to vaporize 1 mole of the liquid. How much heat is absorbed when 1 mole do CS2... more
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