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
Answer: D
Mathematics
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Write a matrix equation equivalent to the system of equations. 9x - 2y + 2z = 50 3x + 4y + 2z = 32 7x - 2y + 4z = 40
A. 
=
B.
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= 
C.
=
D.
= 
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.
+ 
A. 7
B. 21
C. 
D. 10.5
Mathematics
Find the opposite of the integer.183
A. 0 B. -183 C. -1 D. 183
Mathematics
Solve.You make a deposit of $85 into your checking account and you write a check for $39. What is the overall effect of these two actions?
A. $46 B. $124 C. -$124 D. -$46
Mathematics