Friday
December 13, 2013

Posts by jj

Total # Posts: 894

Math Gr.12 (Calculus)
What are you doing with it? Are you trying to solve for x? If so, you have to subtract 3 from both sides so one side = 0 0 = 6x^2 -2x - 11 If this won't factor, you can use the quadratic equation to solve for x. -b +/- (the square root of (b^2-4ac)) all of this divided be 2a.

MATH
9x^2 + 5x - 4 the AC method Multiply the 9 times -4 You have -36 think of factors that will multiple to equal -36 but add to equal the middle number 5. 36 times -1 no 9 times -4 yes Sometimes it takes awhile to find the right numbers. Once you do, you write them and -4x + 9x Y...

MATH
y^3 + y^2 - 4y - 4 factor by grouping the first two and the last two. Be careful with the second grouping because of the _(-) in front of the 4y. (y^3 +y^2) + (-4y -4) Take out the common factors: y^2(y+1) + -4(y+1) See the y+1? Write that down once and your other factor is wh...

math
Did they ask how much would they sell the ice for? or what is the profit? the profit is \$225 and the total price they will sellit for is \$975 Read the question again carefully.

math
\$225 is the profit. they will sell the ice for \$750 + 225 which is \$975 total.

math
Did you read my answer to her questions? We start by dividing 1500 by 5 lbs per bag to get the number of bags which is 300 Since each bag costs 2.50 and we have 300 of them. we paid how much? Once you get that answer multiply by 30% or .30 to get the profit.

math
It is Megan... write below us.

math
If you look before this note. You will see your problem listed below. If you don't see it let me know and I will do it again.

math
I did answer this one earlier.

math
A circle has 360 degrees. The angle for each slice should be 36 degrees. Can you figure out the angle for 3 slices?

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