Find the derivative of the function by first expanding or simplifying the expression. f(x) = (3x + 4)2
A. f'(x) = 9x + 16
B. f'(x) = 9x + 12
C. f'(x) = 18x + 24
D. f'(x) = 6x + 8
Answer: C
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Solve by the method of elimination by substitution.2x + 2y = 95x + 5y = 10
A. x = 1, y = 1 B. x = 3, y = 5 C. Dependent D. Inconsistent
Solve the problem.The radius r of a circle of known area A is given by r = 
, where 
Find the radius and circumference of a circle with an area of 6.33 sq ft. (Round results to two decimal places.)
A. r = 2.02 ft, C = 12.69 ft B. r = 1.42 ft, C = 8.86 ft C. r = 1.42 ft, C = 8.92 ft D. r = 1.42 ft, C = 8.92 sq ft
Find all values that make the expression undefined.
A. 0 B. 2 C. 12 D. -6
Solve the problem.Sara works at a fast food restaurant. On one day she sold 60 double hamburgers, 59 fish sandwiches, 18 orders of French fries, 18 small drinks, 56 medium drinks, and 34 large drinks. On the next day she sold 51 double hamburgers, 39 fish sandwiches, 24 orders of French fries, 96 small drinks, 74 medium drinks, and 69 large drinks. Write this information in a 
matrix.
A. 
B. 
C. 
D. 