Identify the open intervals where the function is changing as requested.Decreasing
A. (-1, 2)
B. (1, 2)
C. (2, -1)
D. (2, 1)
Answer: B
Mathematics
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Answer the question.Find the direction in which the function is increasing or decreasing most rapidly at the point Po.f(x, y) = xy2 - yx2, Po(-1, 2)
A. 
i + 
j
B. 
i + 
j
C. 
i + 
j
D. 
i + 
j
Mathematics
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 
B. 
C. 10
D. 3
Mathematics
Solve. If necessary, round answers to the nearest hundredth.The following test scores were recorded for a student: 83, 78, 76, 72, 78, 64, 74. Find the mean, median, and mode.
A.
| mean: 76 | median: 72 | mode: 78 |
B.
| mean: 75 | median: 76 | mode: 78 |
C.
| mean: 76 | median: 75 | mode: 83 |
D.
| mean: 75 | median: 72 | mode: 83 |
Mathematics
Find the exact value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.Find csc ?.
A. 
B. 
C. 
D. 
Mathematics