Find the derivative of the function at the given value of x.f(x) = -7x - 1; x = 10
A. -70
B. -10
C. -1
D. -7
Answer: D
Mathematics
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Perform the indicated operation. Simplify the result if possible.20 yd 2 ft + 12 yd 1 ft
A. 8 yd 1 ft B. 33 yd C. 32 yd D. 32 yd 2 ft
Mathematics
Solve the equation.95x = 81
A. 25
B. 
C. 
D. 
Mathematics
Choose the graph which matches the function.f(x) = 4- x
A. 
B. 
C. 
D. 
Mathematics
Solve. Remember to insert units when writing your answer.A carpenter needs to cut a board into thirds. If the board is 21 ft 6 in. long originally, how long will each cut piece be?
A. 7 ft 3 in. B. 18 ft 3 in. C. 7 ft 6 in. D. 7 ft 2 in.
Mathematics