Given the values of x and y, find an equation of variation in which y varies directly as x.y = 2.1, when x = 1.2
A. y = 
B. y = 2.1x
C. y = 1.75x
D. y = 
x
Answer: C
Mathematics
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Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin 
cos 
(1 - 2 sin2 x)
A. 
B. 
C. 
D. 
Mathematics
Find the quotient and simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify your answers. 
÷ 
? 
A. 
B. 
C. 
D. 
Mathematics
Solve.- 
k ? - 6
A. k ? 3 B. k ? 14 C. k ? -3 D. k ? 14
Mathematics