Change the quantity into the indicated unit. Round to the nearest tenth.43 inches = ____ cm
A. 12.9 cm
B. 16.8 cm
C. 4.3 cm
D. 109.2 cm
Answer: D
Mathematics
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Express as a difference of logarithms.log4 
A. log4 5 - log4 4 B. log4 4 + log4 5 C. log4 4 - log4 5 D. log2 4 - log2 5
Mathematics
Use a sum-to-product identity to rewrite the expression.sin 18° + sin 27°
A. 2(cos (22.5°) sin (-4.5°)) B. 2(cos (22.5°) cos (-4.5°)) C. 2(sin (22.5°) sin (-4.5°)) D. 2(sin (22.5°) cos (-4.5°))
Mathematics
Simplify the expression, leaving your answer with only positive exponents. Assume that all variables represent positive numbers.(x5)9/5
A. x3 B. x9 C. x10 D. x5
Mathematics
Solve the problem.The area A of a rectangle is 4x2 + 5x - 21 and its width W is x + 3. Find the length L of the rectangle.
A. 4x + 7 B. 4x - 21 C. 4x2 - 7 D. 4x - 7
Mathematics