Solve the problem.The width of a rectangle is x - 
feet and its area is 3x3 + 17x2 + 21x - 9 square feet. Write a polynomial that represents the length of the rectangle.
A. 3x2 + 18x - 27 ft
B. 3x2 + 18x + 27 ft
C. 3x2 + 16x + 
ft
D. 3x2 - 18x + 27 ft
Answer: B
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Solve the application.The circle graph shows the fraction of books read by students in grades one through five. What fraction of books was read by students in third and second grades combined?
A. 
of books
B. 
of books
C. 
of books
D. 
of books
Solve.y = x2 - 10x + 25y = -x + 11
A. (5, 6) B. (2, 9), (7, 4) C. (-2, 13), (-7, 18) D. (2, 13), (7, 4)
Solve the problem.The height of a projectile after t seconds when fired straight up with an initial speed of 72 feet per second from the ground is given by the polynomial 
. Write the polynomial 
in factored form.
A. -8t(2t - 9) B. -8(2t2 - 9t) C. t(-16t + 72) D. -t(16t - 72)
Use the properties of logarithms to solve.log7 x + log7(x - 2) = log7 24
A. 7 B. 24 C. 6 D. 2