A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.A = ?r2 for r = 9, ? = 3.14
A. A = 28.26
B. A = 12.14
C. A = 88.74
D. A = 254.34
Answer: D
Mathematics
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?
A. ?
B. 
C. ?
D. ?
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Find the perimeter of (distance around) the given figure by adding the lengths of the sides.
A. 15.41 cm B. 21.71 cm C. 14.42 cm D. 8.12 cm
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where L and W are the length and width of the rectangle. What is the length of the diagonal, D, of a rectangle that is 97 inches long and 32 inches wide? Round your answer to the nearest tenth of an inch, if necessary.
A. 91.6 in. B. 11.4 in. C. 102.1 in. D. 55.7 in.
Mathematics
Perform the indicated operation. Assume that variables represent positive numbers.
? 
A. 
B. 21
C. 3
D. 3
Mathematics