Solve the exponential equation. Express the solution set in terms of natural logarithms.5 x + 7 = 8

A.
B.
C. {ln 8 - ln 5 - ln 7}
D.


Answer: B

Mathematics

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Solve the problem.A ramp leads up to a warehouse loft. The path up the ramp is 21 ft long. The base of the ramp is 16 ft long. How high is the loft? Round your answer to hundredths. 

A. 6.80 ft B. 92.50 ft C. 18.50 ft D. 13.60 ft

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Solve the equation

a. -2, 6 b. 8, 12 c. -2, -6 d. 2, -6 e. 2, 6

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Evaluate.4 ? 53

A. 8000 B. 129 C. 500 D. 60

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Write in terms of the cofunction of a complementary angle.cot 

A. tan 
B. cot 
C. cot 
D. tan 

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