Write the rational expression in simplest form.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
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Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 4 inches, 7 inches, and 9 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum percentage error in computing S.
A. 0.084% B. 0.128% C. 0.106% D. 0.172%
Factor.15z4 + 2z2 - 8
A. (5z2 + 4)(3z2 - 2) B. (3z4 + 2)(5z - 4) C. (5z4 + 4)(3z - 2) D. (3z2 + 2)(5z2 - 4)
Expand the binomial.(x-3 + 2)5
A. 32x-15 B. x-15 + 32 C. x-15 + 5x-12 + 10x-9 + 10x-6 + 5x-3 + 1 D. x-15 + 10x-12 + 40x-9 + 80x-6 + 80x-3 + 32
Follow the order of operations to work the problem.16 + (-8) - (-19) + 5
A. 22 B. 32 C. 10 D. -6