Solve the problem.A rectangular enclosure must have an area of at least 6300 square yards. If 320 yards of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 80 ? w ? 90
B. 70 ? w ? 80
C. 70 ? w ? 90
D. 0 ? w ? 70
Answer: B
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Provide an appropriate response.The region shown here is to be revolved about the y-axis to generate a solid. Which of the methods (disk, washer, shell) could you use to find the volume of the solid? How many integrals would be required in each case?
?
What will be an ideal response?
Use scientific notation to perform the following operations. Leave your answer in scientific notation form.(2 × 108)(5 × 10-5)
A. 1.0 × 103 B. 1.0 × 104 C. 1.0 × 102 D. 0.0
Solve.e-t = 0.04
(Round your answer to four decimal places).
A. 3.0189 B. 3.2189 C. -3.2189 D. 3.3189
Change the logarithmic expression to an equivalent expression involving an exponent.log1/39 = -2
A. 
2 = 9
B. 
-2 = 9
C. 91/3 = 2
D. (-2)1/3 = 9