Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 

A. 14 in.
B. 221 in.
C. 21 in.
D. 442 in.


Answer: C

Mathematics

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Find the surface area of the surface S.S is the paraboloid x2 + y2 - z = 0 below the plane z = 12.

A. ?
B. 57?
C. ?
D. ?

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The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. What temperature was recorded at 2 p.m.?

A. 80 ° F B. 78 ° F C. 79 ° F D. 76 ° F

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With your calculator set to radian mode and polar graphics capability, graph the following function in the window specified.r = 1 + 2 cos ?, 0 ? ? ? 2?, [-4, 4] by [-4, 4]

A.

B.

C.

D.

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Simplify the complex fraction using Method 1.

A. - 
B. - 20
C. - 
D. - 

Mathematics