Evaluate the expression according to the replacement value given.7p - r; replace p with 3 and r with 6.
A. 21
B. 15
C. 27
D. 126
Answer: B
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Evaluate the expression to determine the entry missing from the table.
A. 3 ? 2 ? 2 is 8 B. 3 ? 2 is 8 C. 3 ? 2 + 2 is 10 D. 3 ? 2 + 2 is 8
Find the indicated roots. Write the answer in trigonometric form.Cube roots of 64(cos 231° + i sin 231°)
A. 4(cos 77° + i sin 77°), 4(cos 197° + i sin 197°), 4(cos 197° + i sin 197°) B. 4(cos 167° + i sin 167°), 4(cos 227° + i sin 227°), 4(cos 107° + i sin 107°) C. 4(cos 77° + i sin 77°), 4(cos 137° + i sin 137°), 4(cos 17° + i sin 17°) D. 4(cos 77° + i sin 77°), 4(cos 197° + i sin 197°), 4(cos 317° + i sin 317°)
Simplify the expression. Assume that all variables are non-negative. 
A. 
B. 
C. 
D. 
Answer the question.The height of a box is 3 inches. The length is three inches more than the width. If the volume is 162 and x represents the width, what are the restrictions on x?
A. 0 < x < 6 B. 0 < x < 13 C. 0 < x < 2 D. 0 < x < 5