Use periodic properties of the trigonometric functions to find the exact value of the expression.cos 
A. -1
B. 0
C. undefined
D. 1
Answer: B
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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 10 inches, 2 inches, and 10 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 15.08 B. 13.82 C. 17.59 D. 16.34
Provide an appropriate response.You go to the bank to cash three checks. The checks are for $40.81, $134.93, and $84.30. You are given $260.04 by the teller. Estimate to see if the amount given you seems to be correct. Does $260.04 seem to be correct?Explain your answer.
What will be an ideal response?
Find the mistake, then find the correct answer.
+ 
= 
What will be an ideal response?
Determine whether the statement is true or false.|-13 - 2| = 13 - 2
A. True B. False