Write in factored form:

3x^2-20=+7x

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For what values of a are v = a i - j + k and w = a i + a j - 3 k perpendicular? give exact values.

The perimeter and area of a rectangle of 15cm and a width of 8cm

In a factory, the cost of producing n items is C (n) = 25n+150. which function describes the average cost of producing one item when n items are produced?

Which is greather? 2/12 or 8/100

Solve for S: _ (P/Q) = (R/S)

The equation t=0.07c represents the tax, t, based on the cost, c, of an item. Which part all of the equation represents the constant of proportionality? (A) T (B) 0.07 (C) C (D) 7

What is the angle measure that is vertical to an 83° angle?

Can area and perimeter be measured in units squared

The windows of a downtown office building are arranged so that each floor has six fewer windows than the floor below it. If the ground floor has 52 windows, how many total windows are on the first eight floors?

4) 4n2 + 7n - 135 = 0