Give a verbal representation for the given function. f(x) = 7 - 9x. Let y = f(x).
A. To obtain y: Multiply x by 7, then subtract the result from 9.
B. To obtain y: Subtract 9 from 7 , then multiply the result times x.
C. To obtain y: Multiply x by 9, then subtract the result from 7.
D. To obtain y: Add 9 to x, then add 7 to the result.
Answer: C
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Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = x2 + 7x - 2; f '(0)
A. f '(x) = 2x; f '(0) = 0 B. f '(x) = 2x + 7; f '(0) = 7 C. f '(x) = x + 7; f '(0) = 7 D. f '(x) = 2x - 2; f '(0) = - 2
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = sin yi + xzj + 4zk ; D: the thick sphere 1 ? x2 + y2 + z2 ? 4
A. 
?
B. 112?
C. 32?
D. 
?
Solve the problem. Round to the nearest tenth if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 34 questions correct. What was the percent of increase?
A. 36% B. 26.5% C. 64% D. 9%
Solve.In the table, x is directly proportional to y. Find the undetermined value.
A. 50.96 B. 5.2 C. -5.2 D. -50.96