Solve the problem.For a cone, the formula r = 
describes the relationship between the radius r of the base, the volume V, and the height h. Find the volume if the radius is 11 inches and the cone is 7 inches high. (Use 3.14 as an approximation for ?, and round to the nearest tenth.)
A. 886.5 cubic in.
B. 7978.7 cubic in.
C. 126.6 cubic in.
D. 80.6 cubic in.
Answer: A
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Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.(2,000,000)(0.003)
A. 6.0 × 101 B. 6.0 × 103 C. 0.0 D. 6.0 × 102
In calm waters oil spilling from the ruptured hull of a grounded tanker spreads in all directions. If the area polluted is a circle and its radius is increasing at a rate of 3 ft/sec, determine how fast the area is increasing when the radius of the circle is 55 ft.
What will be an ideal response?
Differentiate.y = (3x2 + 5x + 1)3/2
A. 
= (3x2 + 5x + 1)1/2
B. 
= 
(3x2 + 5x + 1)1/2
C. 
= (6x + 5)(3x2 + 5x + 1)1/2
D. 
= 
(6x + 5)(3x2 + 5x + 1)1/2
The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 4, dx = 0.6
A. 0.00351 B. 0.07866 C. 0.10702 D. 0.00587