Sunday
December 8, 2013

# Posts by -Untamed-

Total # Posts: 91

Calculus
Thanks so much =)

Calculus
Simplify. State the nonpermissible values. 4a^2-1/4a^2-16*2-a/2a-1 This is what I did to try and solve it out: (2a+1)(2a-1)/(2a+4)(2a-4)*2-a/(2a-1) I cancelled out the (2a-1)'s and don't get how to solve. I'm supposed to get the answer : -2a-1/4(a+2) But I don'...

Math
Determine the perimeter of the rectangle if x = 2*sqrt2cm. In simplest radical form. ^ Don't get how to solve.

Math
Consider the rectangle with an area of 24x^3-54x^2-15x, with a side length of 6x^2-15x. Write and simplify an expression for the length of the rectangle. ^ Could someone please show me how to do this?

Math
Simlifying Rational Expressions Reduce to lowest terms, stating the restrictions on the variable. I really don't understand the whole cancelling out the factor thing, and not cancelling out the terms. As I was having lots of trouble with this stuff this is the way I was to...

Math
The quadratic function f(x) = x^2 is transformed to g(x) = -2/3(x+3)^2 + 6 The point (6,36) on the graph of f is transformed to which point on the graph of g? Could someone please show me how to solve this:\

Math
A photograph measuring 8 inches by 6 inches is surrounded by a mat. The mat has the same width on all sides of the photograph. The photograph and mat are put into a glass photo frame which just covers the outside of the mat. If the area of the glass surface is 120 square inche...

Math
y = 0.005x^2-0.801x+46.928 ^ Using that model above, how di I determine the cost per km to the nearest tenth of a cent, at a speed of 70 km/h? I think I use a graphing calculator for this, and since speed is the x value I probably have to insert in 70.

Math
The roots of the equation 4x^2+4x-5 = 0 can be written in the form x = -1+-*SqrtA/2 The value of A is, how exactly do I do this?

Math
The shortest side of a right angled triangle is 7cm less than the second shortest side. The sum of the squares of these two sides is equal to 289cm^2. The perimeter of the triangle in cm is? I dont get how to do this, I think Im meant to use a quadratic equation to solve.

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