Find the limit as x approaches c of the average rate of change of the function from c to x.c = 3;f(x) = 5x + 3
A. 5
B. -3
C. -5
D. 3
Answer: A
Mathematics
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Solve the problem.A boat is sailing directly toward a lighthouse that is 120 ft tall. The angular size ? of the lighthouse is the angle formed by the lines from the top and bottom of the lighthouse to the observer on the boat, as shown in the figure. What is the rate of change of the angular size d?/dx when the boat is 350 feet from the lighthouse?
A. -0.00088 rad/ft B. -0.00877 rad/ft C. -0.00007 rad/ft D. 0.00450 rad/ft
Mathematics
Find the exact value of the following expression without using a calculator.sin 
A. 
B. - 
C. - 
D. 
Mathematics
Perform the indicated calculation.Calculate 2a34a31 - a12 for the matrix A = 
.
A. There is no element a34. B. -48 C. -56 D. -20
Mathematics
Evaluate the factorial expression.
A. 10 B. 20 C. 120 D. 40
Mathematics