Find an equation of variation in which the following are true.y varies jointly as x and z; y = 360 when x = 12 and z = 24
A. y = 
B. y = 
C. y = 
xz
D. y = 103680xz
Answer: C
Mathematics
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Solve the number problem by finding the value of the unknown number.The difference of a number and 3 is 39 less the number.
A. -18 B. 21 C. -21 D. 18
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Graph the function.g(x) = (x + 3)2 
A. 
B. 
C. 
D. 
Mathematics
Express using positive exponents. Then simplify.
-2
A. - 
B. - 
C. 
D. 
Mathematics
Find all values of ? in [0, 360°) for which the following is true.cot ? = 1
A. 45° and 225° B. 225° and 315° C. 135° and 225° D. 45° and 315°
Mathematics