If y varies directly as x, write a general formula to describe the variation.y = 6 when x = 4
A. y = 2x
B. y = 
x
C. y = x + 2
D. y = 
x
Answer: D
Mathematics
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Solve the exponential equation and approximate the result, correct to three decimal places.
= 5
A. 0.2027 B. 0.215 C. 0.2798 D. 0.3261
Mathematics
Solve.
+ 
= 
A. -9, -2 B. 2 C. -2 D. 9, 2
Mathematics
Identify the number as prime, composite, or neither.40
A. Composite B. Neither C. Prime
Mathematics
Find the derivative of the function.y = 9 sin (7x - 2)
A. 
= 9 cos (7x - 2)
B. 
= -7 cos (7x - 2)
C. 
= 63 cos (7x - 2)
D. 
= 7 sin (7x - 2)
Mathematics