Determine the unit rate.A flight of 49 meters in 14 seconds. Round to the nearest hundredth.

A. 686.0 m/sec
B. 0.29 m/sec
C. 2.86 m/sec
D. 3.50 m/sec


Answer: D

Mathematics

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Find the derivative of the function at P0 in the direction of u.f(x, y, z) = 2xy3z2, P0(2, 8, 4),  u = -2i + j - 2k

A. - 
B. - 20,480
C. - 16,384
D. - 

Mathematics

Find the expected value.In a large casino, the house wins on one of its games with a probability of 50,600%. All bets are 1 : 1 . If you win, you gain the amount you bet; if you lose, you lose the amount you bet.If patrons bet a total of $400,000 on this game in one evening, how much should the casino expect to earn?

A. $202,200,000 B. $404,400,000 C. $202,400,000 D. $485,280,000

Mathematics

Solve the triangle.a = 6, c = 10, B = 123°

A. b = 20, A = 19°, C = 38° B. b = 17.1, A = 23°, C = 34° C. b = 14.2, A = 21°, C = 36° D. no triangle

Mathematics

Write the number in words.30,986,007

A. three million, nine hundred eighty-six thousand, seventy B. thirty million, nine hundred eighty-six thousand, seventy C. three million, nine hundred eighty-six thousand, seven D. thirty million, nine hundred eighty-six thousand, seven

Mathematics