Determine whether the pair of fractions is equivalent.
and 
A. equivalent
B. not equivalent
Answer: A
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Solve.Find the center, vertices, and foci of the ellipse 16x2 - 128x + 25y2 - 150y + 81 = 0
A. C: (4, 3); V: (-1, 3), (9, 3); F: (0, 3), (8, 3) B. C: (4, 3); V: (3, -1), (3, 9); F: (3, 1), (3, 7) C. C: (4, 3); V: (-1, 3), (9, 3); F: (1, 3), (7, 3) D. C: (4, 3); V: (3, -1), (3, 9); F: (3, 0), (3, 8)
Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent
A.
| 0.167? | 16.7% |
B.
| 0.167? | 1.67% |
C.
| 0.287? | 287% |
D.
| 0.287? | 28.7% |
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Find the area under the normal curve for the condition.Find the percent of the area under the curve between the mean and -0.83 standard deviations from the mean.
A. 79.7% B. 29.7% C. 29.4% D. 70.3%