Solve for the specified variable.I = 
for r
A. r = 
- IR
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Find the exact value of the expression.sin
A. 1
B. 
C. 0
D. 
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.68 ? 62
A. 610 B. 3616 C. 616 D. 3610
Mathematics
Convert.987 mm = _____ cm
A. 98,700 B. 9870 C. 98.7 D. 9.9
Mathematics
Solve the problem.Given the area A of a circle, the formula r = 
can be used to calculate the radius of the circle. Find the area when the radius is 8.6 cm. Express your answer in terms of ?.
A. A = 73.96 ?2 cm2 B. A = 73.96 cm2 C. A = 73.96? cm2 D. A = 76.04? cm2
Mathematics