Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of ?, where 
. Then find sin ? and cos ?.
A. 
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Solve.A deep-sea diver dives from the surface to 124 feet below the surface and then swims up 10 feet, down 18 feet, down another 26 feet, and then up 21 feet. Find the diver's depth after these movements.
A. -137; 137 ft below the surface B. -85; 85 ft below the surface C. -49; 49 ft below the surface D. -157; 157 ft below the surface
Mathematics
Solve.How many different three-number "combinations" are possible on a combination lock having 34 numbers on its dial?
A. 17,952 B. 35,904 C. 34,782 D. 69,564
Mathematics
Solve and check the equation.x3/2 = 8
A. {2}
B. {16
}
C. 
D. {4}
Mathematics
Solve the equation.
x - 
= -3
A. {-11} B. {11} C. {13} D. {-13}
Mathematics