the polynotmlale PC) aind 0u) below R- Q) is equivalent to which of the followin
ID: 3185382 • Letter: T
Question
the polynotmlale PC) aind 0u) below R- Q) is equivalent to which of the following? 9. The length of a rectangle is represented by ' . 3c 2 and the width is represented by 4 (a) Express the perímeter of the rectangle as a trinonalal (b) Express the area of the rectangle as a trinomial. I0. The revenue Re), from selling x units of a product is represented by the equation Ra)-35x, while the total cost, Ctr), of making r units of the product is represented by the equation a')-20r + 500. The total profit. pto is represented by the equationMr)-mn-ar). For the values of R(r) and ar) given above, what is 07 (1) 15x (2) 15r +s00 (3) 15r 500 (4) 10r 100 11. The area of a trapezoid is found by using the formiulab) where 4 is the area, h is te height, and bi and ba are the lengths of the bases. What is the area of the trapezoid below? (0)4-Ir + 2 (2) 4 4r + 8 (3)4-2r+r-21 (4 4 - 222 + &-42 12. A manufacturer of ping-pong balls has a daily prolivloss given by the function Pix)--x2 +12x -27, where x is measured in hundreds of ping-pong bals sokd and P(x) is measured in thousands of dollars Which graph represents the function?Explanation / Answer
8) R(x) = P(x) + Q(x)
P(X) = x^3 + 3x^2 -1
Q(X) = - 2x^2 - x + 4
R(x) = x^3 + 3x^2 -1 + ( - 2x^2 - x + 4 )
= x^3 + x^2 - x + 3
3rd option is correct
9) length = x^2 + 3x + 2
width = 4x
a) perimeter = 2 l + 2w
= 2x^2 + 6x + 4 + 8x
= 2x^2 + 14x + 4
area = length * width
area = 4x (x^2 + 3x + 2 )
area = 4x^3 + 12x^2 + 8x
10) R(x) = 35x
C(x) = 20x + 500
P(x) = R(x) - C(x)
P(x) = 15x - 500
3rd option is correct
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