12/08/14

find the x intercept of f(x)=x2-9x+7
What are the x-intercepts of f(x)=x2−9x+7
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12/08/14

Chemistry Ideal Gas Problem, A hot air balloon is filled with 1.19 × 106 L of an ideal gas on a cool morning (11 °C)
A hot air balloon is filled with 1.19 × 106 L of an ideal gas on a cool morning (11 °C). The air is heated to 113 °C. What is the volume of the air in the balloon after it is heated? Assume that... more
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12/08/14

If 2^a=5 and 2^b=3, what is the value of log_(3)10?
How to get an answer of (a+1)/b?   3 is subscript in log_(3)10
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12/07/14

The secound of two numbers is 6 times the first.Their sum is 77.Find the numbers.
In this math problem i have to find an equation.ex. 2x+3=9. in the whole problem an wquation lies in it and i am thrown off by my answers. in this example 2x = there is 2 unknowns and 3 is the... more
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12/07/14

If a limit does not exist, does that make the left and right limits unequal?
I was asked to pick a function for when the limit of f(x) as x approaches c from the right and left are unequal. I used the square root of x-2. Since it is undefined for x<2 and the left-hand... more
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12/07/14

Is a 60% to 40% split equal to a 2/3 split in total revenue?
If a boxer says that they would like 60% of a purse to his opponents 40%, then later says he would like 2/3 of the total revenue, is this the same thing or completely different?
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12/07/14

The longer leg of a right triangle is 4inches longer than the shorter leg. The hypotenuse is 8inches longer than the shorter leg.
The longer leg of a right triangle is 4inches longer than the shorter leg. The hypotenuse is 8incheslonger than the shorter leg. Find the side lengths of the triangle.   SHORTER LEG =  LONGER... more
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12/07/14

Please help, I've tried to solve this many times but no result!
There are 80 students in a school. 35 of them speak English, 36 German and 26 Italian. 19 of them speak English and German, 21 speak English and Italian, 18 speak German and Italian. 18 students... more
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12/07/14

Multiply and simplify
Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.   3√20x10y × 3√16x16y13               ( answer is 4x8y4 3√5x2y2 but i need help step by... more
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12/05/14

What is the vertex of the graph of y = |x - 2|- 5?
What is the vertex of the graph of y = |x - 2|- 5? Choose one answer. A. (2, -5)   B. (-2, 5)   C. (0, -3)   D. (0, -7)
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12/05/14

use a sum or difference formula to determine the value of the trig function
Sin(-pi/12) Is this the same as finding sin( pi/12)
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12/05/14

(x-2y).(x+2y)=4 this is gre question and he is saying ans is 8 how sir?
option are x square -4y square second option is =8
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12/04/14

How do I get from 2^(x-log2 x) to 2^x/x
How do I get from 2^(x-log2 x) to 2^x/x
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12/04/14

Solve the equation
I'm in a section about factoring/radicals etc. and I got stuck on questions like "solve the equation __z=__z2  I know you take one to the other side to get 0 on the other, but how do you find z?... more
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12/04/14

What should be the selling price be in order to maximize revenue?
A company is selling sweaters as a fundraiser. They sell 1200 a year at $20 each. They are planning to increase the price. However, a survey indicates that for every $2 increase in price, there... more
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12/04/14

the sum of three consecutive numbers is 60. Find the numbers.
find three consecutive numbers whose sum is 60.  I tried this problem and keep getting it wrong.  Please help!
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12/04/14

solve the equation 5^3x-2=(1/25)^x
the 3x-2 is all one exponent
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12/04/14

Solve for 'z'
√(7z+1)=z+1
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12/04/14

Write an equation that using the variable t to represent the time it takes to paint the room together that can be used to solve the problem.
Kristen can paint a room in 20 hours. Karissa can paint the same room in 12 hours. How long does it take for both Kristen and Karissa to paint the room if they are working together?Write an... more
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12/03/14

Use the change-of-base property
Use common logarithms or natural logarithms and evaluate to four decimal places.   log1776.6               ( answer is 1.5313 but i need help step by step on how they got this answer)
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12/03/14

-7(2+3x)+-3x-5+9
Simplify and combine this problem i got -14-21x+-3x-5+9
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12/03/14

why is the sine of a 70 degree angle the same, regardless of how big the triangle is
Im in trig and geometry
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12/03/14

1/3÷reciprocal of a particular number,result is 8 less than the number.
When 1/3 is divided by the reciprocal of a particular number,the result is 8 less than the number the number is which of the following  3 6 8 9 12
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12/03/14

Find the fourth-degree polynomial function whose graph is shown in the figure.
Find the fourth-degree polynomial function whose graph is shown in the figure. 
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12/03/14

Find a polynomial f(x) of degree 3 that has the indicated zeros and satisfies the given condition.
Find a polynomial f(x) of degree 3 that has the indicated zeros and satisfies the given condition.      −6, −1, 0;    f(−4) = −96
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