Factor completely. If the polynomial is prime, state so.81x2 - 144x + 64
A. (9x - 8)2
B. (9x + 8)2
C. (81x + 1)(x + 64)
D. (9x - 8)(9x + 8)
Answer: A
Mathematics
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Write each expression using the LCD as the denominator.
, 
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Use the fundamental identities to find the value of the trigonometric function.Find cos ?, given that sin ? = - 
and ? is in quadrant III.
A. - 
B. 
C. - 
D. - 
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Use a calculator to find the function value to four decimal places.tan 22.11°
A. 0.1386 B. 1.2850 C. 0.9265 D. 0.4063
Mathematics
Let the function 
be defined by the equation 
, where x and 
are real numbers.
Find the domain of the function 
.
?
A. domain: 
B. domain: 
C. domain: 
D. domain: 
E. domain: 
Mathematics