Find numbers a and b, or k, so that f is continuous at every point.
A. k = -4
B. k = 12
C. k = 20
D. Impossible
Answer: B
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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 4 inches, 5 inches, and 8 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 13.82 B. 20.11 C. 16.96 D. 10.68
The following question(s) refer to a fractal defined by the recursive procedure :
How many line segments appear in step 4 of the construction?
A. 5 × 4 B. 5 C. 45 D. 54 E. none of these
Determine whether the equation is a linear equation in two variables.7y = x - 3
A. yes B. no
Find the product.-2x(10x - 3)
A. -20x2 - 3x B. -20x2 + 6x C. -14x2 D. 10x2 + 6x