Solve the problem.A circular pool measures 16 feet across. One cubic yard of concrete is to be used to create a circular border of uniform width around the pool. If the border is to have a depth of 
, how wide will the border be? Use 3.14 to approximate ?. Express your solution rounded to two decimal places. (1 cubic yard = 27 cubic feet)
A. 15.48 ft
B. 10.78 ft
C. 4.93 ft
D. 5.69 ft
Answer: C
Mathematics
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point 
for ex2cos yz = 0.
A. - 2
B. 
C. - 
D. 2
Mathematics
Solve the problem.To get a B in biology, Katie must have a mean score of 81 on five lab reports. Scores on the first four lab reports were 92, 77, 79, and 82. What is the lowest score that Katie can get on the last lab report and still receive a B?
A. 71 B. 83 C. 82 D. 75
Mathematics
Find decimal notation.- 
A. -1.275 B. -1.25 C. -1.35 D. -1.375
Mathematics
Identify the coordinates of each point labeled in the figure.
A. A(6, 3); B(4, -6) B. A(3, 28); B(4, -6) C. A(6, 4); B (3, 4) D. A(6, 3); B(-6, 4)
Mathematics