Simplify the expression.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write each fraction as an equivalent fraction with the LCD of the two fractions as the denominator.
and 
A. 
; 
B. 
; 
C. 
; 
D. 
; 
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Find the rectangular equation of the given polar equation.r sin ? = 10
A. x = 10 B. y = 10x C. x = 10y D. y = 10
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Write the logarithmic equation as an exponential equation.log3
= 
A. 
3= 
B. 3
= 
C. 
1/2 = 3
D. 31/2 = 
Mathematics
Provide an appropriate response.
Find cos A and round to the nearest ten-thousandth if a = 12, b = 10, and c = 15.6.
A. 0.7692 B. 0.8333 C. 1.200 D. 0.6410
Mathematics