Let B denote the balance of an account t years after the initial investment. Here is a formula for the rate of change of B:
.
A: Make a graph of 
versus t over the first 10 years of the investment.
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B: During what time period is the value of the investment decreasing? Round your answer to two decimal places.
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C: When does the investment reach a minimum value? Round your answer to two decimal places.
What will be an ideal response?
A:
??
B: The value is decreasing over the first 6.95 years of the investment.
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C: After 6.95 years
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Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 3, u '(1) = -5, v(1) = 6, v '(1) = -4.
(uv) at x = 1
A. -42 B. 18 C. -39 D. 42
Find the margin of error for the survey results described. In a survey of 659 employees of a large company, 34% said that they had high job satisfaction.Give your answer as a decimal to three decimal places.
A. 0.078 B. 0.002 C. 0.039 D. 0.019
Write the given number in scientific notation.430,000
A. 4.3 × 106 B. 4.3 × 10-5 C. 4.3 × 10-6 D. 4.3 × 105
Solve the system of equations graphically. x = y - 24x = 3y
A. (-6, 4) B. (6, 8) C. (8, 6) D. (0, 0)