Find the derivative of the function at the given value of x.f(x) = x3 + 4x; x = -2
A. 12
B. 4
C. -2
D. 16
Answer: D
Mathematics
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Solve the problem.Three receiving stations at (8, 11), (4, 6), and (12, 9) record distances to an earthquake of 2 units, 5 units, and 4 units, respectively.Find the coordinates of the epicenter.
A. (1, 2) B. (8, 9) C. (9, 8) D. (-6, -5)
Mathematics
Multiply. Write the answer as a mixed number as needed.9
? 5
A. 225
B. 14
C. 48
D. 45
Mathematics
Simplify the expression.7291/3
A. 6,561 B. 9 C. 19,683 D. 27
Mathematics
Evaluate. If necessary, find common denominators and simplify completely.4
+ 12
+ 
A. 17
B. 18
C. 16
D. 17
Mathematics