Use the definition f'(x) = 
to find the derivative at x.f(x) = 21x - 3
A. 21x
B. 18
C. -21
D. 21
Answer: D
You might also like to view...
Factor.-50x3 - 30x2 + 8x
A. -2(5x2 - 1)(5x + 4) B. x(5x - 1)(-10x - 8) C. -2x(5x - 1)(5x + 4) D. x(-10x + 2)(5x + 4)
List the numbers in set B that belong to the indicated set.B = 
Natural numbers
A. 12, 
B. 12, 0
C. 12, 0, 
D. 12, 0, 
Solve the problem.Jon has 524 points in his math class. He must have 64% of the 1100 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
A. 704 points B. 576 points C. 180 points D. 335 points
Use technology to compute r, the correlation coefficient.The test scores of 6 randomly picked students and the number of hours they prepared are as follows: 
A. .6781 B. -.6781 C. -.2242 D. .2242