Factor the expression completely.
?
What will be an ideal response?
Mathematics
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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 9 inches, 5 inches, and 6 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum percentage error in computing S.
A. 0.031% B. 0.051% C. 0.028% D. 0.040%
Mathematics
Change the improper fraction to a whole or mixed number.
A. 19
B. 20
C. 18
D. 19
Mathematics
Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x + 5| ? 0
A. (-?, 5) ? (5, ?)
B. -5
C. (-?, -5) ? (-5, ?)
D. (-?, ?)
Mathematics
Add or subtract.-13 + (-16)
A. -29 B. 29 C. 3 D. -3
Mathematics