Find the requested function value.Find (g ? f)(-9) given f(x) = -5x - 1 and g(x) = 9x2 - 7x + 2.
A. 79
B. 17,118
C. 90
D. -3,971
Answer: B
Mathematics
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Evaluate the integral.
dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Construct a phase line. Identify signs of y' and y".
= y2 - 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 8 inches, 8 inches, and 9 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum percentage error in computing S.
A. 0.034% B. 0.055% C. 0.041% D. 0.028%
Mathematics
Find an equation of variation in which y varies inversely as x and the following is true.y = 33, when x = 2
A. y = 
B. y = 
C. y = 16.5x
D. y = 
Mathematics