Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model  where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, how deep in the lake is the water 9 degrees? (Round to the nearest foot.)

A. 30 feet
B. 45 feet
C. 12 feet
D. 67 feet


Answer: C

Mathematics

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Solve:

j244 ÄÄÄÄ = j8 a. 11 ÄÄ 2 b. 11 -j2 ÄÄ 2 c. 11 j2 ÄÄ 2 d. 11 jÄÄ 2 e. 11 -jÄÄ 2

Mathematics

Find the remaining sides of a 30-60-90 triangle from the given information.The length of the hypotenuse is 4.

A. 42
B. 44
C. 24
D. 22

Mathematics

Find the asymptote(s) of the given function.g(x) =  horizontal asymptotes(s)

A. y = 2 B. y = 8 C. y = -5 D. None

Mathematics

Solve the problem.A local civic theater has 22 seats in the first row and 21 rows in all. Each successive row contains 3 additional seats. How many seats are in the civic theater?

A. 1070 seats B. 1092 seats C. 1010 seats D. 790 seats

Mathematics