12/12/13

How would you find sinx=.3
I dont get how to do this, the problme is  sinx=.3 you have to take the inverse of n.3 and you get .305 (round) but the i dont know where to go from there, you need 2 solutions and .305 is the... more
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12/12/13

I don't know how to do algebra can you help me. I have this big exam coming up and im not ready for it.
it says factor the expression    18b^2  +  12b =        I don't know how to do this can you walk me threw it 
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12/12/13

Diana is buying seven avocados. Each avocado weighs 8 oz. How much will they cost her if avocados cost $2.00 a pound?
I am working on operations with time and mixed units. The question is: Diana is buying seven avocados. Each avocado weighs 8 oz. How much will they cost her if avocados cost $2.00 a pound?
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12/11/13

exams scores
. Students in a math class took a final exam and then took equivalent forms of the exam at monthly intervals thereafter. The average score f(t), as a percent, after t months was found to be given... more
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12/11/13

what is the system of equations. { 6x+2y=16....
what is the systems of equations. {6x+2y=16                4   x- y=      3 or is it inconsistent and has no solution?
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12/11/13

How do you write an equation in vertex form and standard form if you know the coordinates of the x intercepts as well as the y intercept?
The coordinates of the x-intercepts given are (-1,0) and (3,0). The y-intercept is 2.5. How do you create an equation in standard and vertex form with that info?   I'm not sure what each letter... more
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12/10/13

what is the 7 power of 73
what is the 7 power of 73
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12/10/13

If the LCM of two numbers is equal to the product of the two numbers, what must be true about their common factor?
Help!!!            
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12/10/13

When is the LCM of two numbers the same as one of the numbers. Give an example
i don't know how to think about this question
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12/10/13

I am having trouble figuring out: 9x^2 + 18x + 5 =0
I cannot figure out how to get x from this problem. Thanks a lot!
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12/10/13

x + x/2 - 4 = x/4
How do I solve this?
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12/10/13

Ratio problem - Solve ASAP NEED SERIOUS HELP
2 questions: a) - Danny poured 78 liters of water into containers x,y,z. The ratio of the volume of water in container X to the volume of water in container Y is 5:2. The Ratio of the volume of... more
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12/10/13

The image of a ribbon is 10 times the ribbon's actual size and has a width of 1 cm. Find the actual dimensions of each object.
How is this done?
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12/10/13

Word Problem
The cost to produce one laptop computer is 890.00 plus a one time fixed cost of 100,000.00 for research and development. Each laptop computer will be sold for 1520.00.   A. Write a formula that... more
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12/10/13

A coffee merchant combines coffee that costs $7 per pound with coffee that costs $3.60 per pound. How many pounds of each should be used to make 26 lb of a blen
A coffee merchant combines coffee that costs $7 per pound with coffee that costs $3.60 per pound. How many pounds of each should be used to make 26 lb of a blend costing $6.15 per pound?
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12/10/13

Jane counted 16 newborns in the hospital nursery. She saw 4 more baby girls than baby boys. How many of each did she see?
I have tried subtracting
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12/09/13

solve using the graphing method: y=7x-8, y=x+4
I got this graphed I just don't know how to show all the work. Please help & use step by step, thank you. 
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12/09/13

what is the slope intercept form of y+x=0?
I need to know m and b
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12/08/13

How to factor 2x^2+5x-3?
I have the question factor this problem, 2x^2+5x-3. And I was told to multiply 2 by -3, which the answer is -6. And then add the factors of -6 to get the middle number. Which -1 plus 6 is 5 for 5x.... more
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12/08/13

Trish invests $5,000 in her IRA in a bond trust that pays 9%....
Trish invests $5,000 in her IRA in a bond trust that pays 9% interest compounded quarterly. Sean invests $5,000 in his IRA  in a certificate of deposit that pays 8.9% compound continuously. who has... more
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12/08/13

solve the equation 4^x^2-80=16^x
solve the equation 4^x^2-80=16^x
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12/08/13

A store sells cashews for $6.00 per pound. and peanuts for $2.50 per pound...
 A store sells cashews for $6.00 per pound and peanuts for $2.50 per pound. The manager decides to mix 20  pounds of peanuts with cashews and sell the mixture for $4.00 per pound . How many pounds... more
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12/08/13

prove the following trigonometric identity
2sin^2x - 1÷ sinxcosx = tanx-cotx
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12/08/13

solve system of equations.
X2-4Y2+7=0 3X2+Y2=31       X+Y+1=0 X2+Y2+6Y-X=-5
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12/08/13

y +5=x 3y=2x solve problem
the larger x of two positive integers is five more than the smaller y. if three times the smaller is the same as two times the larger, find the two integers set with 2 equations an solvw problem
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