Solve the problem.The shape of a cam can be described by the polar equation 
. Find the rectangular equation for the shape of the cam.
A. 
2 = 7
B. 
2 = 7
C. 
2 = 49
D. 
2 = 7
Answer: C
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For a person who is 100 centimeters tall, the body surface area B, in square meters, can be estimated from the weight w measured in kilograms. The relation is
.
A. Make a graph of body surface area versus weight. Include weights up to 100 kilograms.B. Is the graph concave up or concave down?C. Among people who are 100 centimeters tall, would weight gain have a greater effect on surface area for a lighter person or for a heavier person?
What will be an ideal response?
Provide an appropriate response.By only looking at the following equations, can you say if the equations have a unique solution or infinitely many solutions?
What will be an ideal response?
Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.5
+ 4
- 4
- 
A. 123
- 92
B. 21
- 4
C. 121
- 84
D. 23
- 12
Multiply.-14 ? (-6)
A. 98 B. 90 C. -98 D. 84