Solve the problem.Find an equation for the level surface of the function f(x, y, z) = 
that passes through the point 
.
A. x + y + z = 13
B. x2 + y2 + z2 = 169
C. x2 + y2 + z2 = 13
D. x + y + z = ± 13
Answer: B
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A statement is made about correlation. State whether the correlation is positive or negative and whether the correlation is most likely due to coincidence, a common underlying cause, or a direct cause.As Thomas's income rose over the last 20 years so has his stress level.
A. Positive correlation; coincidence B. Positive correlation; direct cause C. Positive correlation; common underlying cause D. Negative correlation; common underlying cause
Solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $46 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 1220 min B. 6 min C. 2 min D. 620 min
Provide an appropriate response.In oblique triangle ABC, find the indicated part. Round to the nearest tenth. Side b = 4, side c = 1, and angle A = 120°; find side a.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.The effective rate is the same as the annual rate.
A. True B. False