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(2) = 9, u '(2) = 2, v(2) = -1, v '(2) = -4.
(2u - 4v) at x = 2
A. 22
B. 14
C. 20
D. -12
Answer: C
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Write the equation of the line from the given information. Write the line in standard form.Passing through (8, 0) and (0, 3)
A. -8x + 3y = -9 B. 3x + 8y = 24 C. 8x - 3y = -9 D. -3x + 8y = 24
The given information applies to the day of investment in a mutual fund. Find the net asset value or number of shares purchased as indicated. 
Find the number of shares purchased.
A. 10,498 B. 308 C. 94,687 D. 9441
Provide an appropriate response.Change 70 kilometers to miles. (Round to nearest tenth; 1 mi = 1.6 km.)
A. 112.5 B. 112 C. 43 D. 43.8 E. none of the above
Write the number in standard form.The distance from the sun to Mars is 2.29 × 1011 kilometers.
A. 2,290,000,000,000 B. 229,000,000,000 C. 22,900,000,000,000 D. 22,900,000,000