Find the domain of 
.
A. all real numbers except x = -7
B. all real numbers except x = 49
C. all real numbers except x = 7
D. all real numbers except x = 7 and x = -7
E. all real numbers
Answer: D
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Describe the graph of the polar equation. r = 50 sin ?
A. Ellipse centered at the origin with intercepts (±1, 0) and (0, ±25) B. Horizontal line passing through (0, 50) C. Circle with radius 25 and center (0, 25) D. Parabola opening upward with vertex at (0, 25)
Use a proportion to solve the problem.Andy is driving at a speed of 95 miles per hour. How many miles has he traveled after 24 minutes?
A. 38 mi B. 69 mi C. 41 mi D. 71 mi
Provide an appropriate response.You are asked to change 10
to an improper fraction. What should be your first step?
A. Multiply 13 and 10. B. Add 10 and 9. C. Multiply 9 and 10. D. Divide 9 by 13.
Verify the identity.sin(? + ?) - sin(? - ?) = 2 cos ? sin ?
What will be an ideal response?