Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.81-3/2
A. -729
B. 
C. - 
D. 729
Answer: B
Mathematics
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Round to the indicated place value.Round 11.689 to the nearest tenth.
A. 11.69 B. 11.6 C. 11.7 D. 11.8
Mathematics
Provide an appropriate response.Rationalize the denominator and simplify: 
A. 
B. 
C. 
D. 
Mathematics
Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The image of a figure under the translation that takes P to P' is shown. Find the original figure. Note again, the given figure is the image after translation.
A. 
B. 
C. 
D. 
Mathematics