Solve the exponential equation by taking the logarithm on both sides. Use a calculator to obtain a decimal approximation, correct to four decimal places, for the solution.e(x + 7) = 2
A. -6.0837
B. 2.1972
C. -4.8028
D. -6.3069
Answer: D
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Evaluate the integral.
A. 
B. 1170
C. 
D. 234
The amount A, in grams, of a certain isotope of uranium remaining after t minutes of decay is given by
.
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A: Make a graph of A versus t over one hour.B: How much of the isotope is present after 13 minutes?C: What is the half-life of this isotope? That is, how long will it take for half of the substance to decay?
?
?Round your answer to two decimal places if necessary.
?
What will be an ideal response?
Find the discount period.Loan made: Aug 17Length of loan: 240 daysDate of discount: Dec 11
A. 125 days B. 116 days C. 124 days D. 115 days
Solve the problem.Going into the final exam, which will count as three tests, Jerome has test scores of 61, 72, 59, 75, and 77. What score does Jerome need on the final in order to earn a C, which requires an average of 70?
A. 75 B. 79 C. 72 D. 70