Rewrite the expression in terms of exponentials and simplify the results.8 cosh (ln x)
A. 4(ex+ e-x)
B. 4x
C. 0
D. 4
Answer: D
Mathematics
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Convert as indicated. If necessary, round to two decimal places.83 miles to kilometers
A. 51.46 km B. 210.82 km C. 133.63 km D. 90.47 km
Mathematics
Solve the problem.Dimitri's score on his third math test was 93. His score on the first test was 8 points higher than his score on the second test. His total for all three tests was 263. What was Dimitri's score on the first test?
A. 8 B. 89 C. 81 D. 85
Mathematics
Determine whether or not the function is one-to-one.
A. Yes B. No
Mathematics
Solve the problem.The pharmacist mixed 4.59 grams of one drug with 4.631 grams of another drug. What was the weight of the mixture?
A. 9.262 g B. 10.321 g C. 9.221 g D. 9.18 g
Mathematics