Find the LCD for the fractions in the list.
, 
A. -4(x - 4)(x + 5)
B. -4(x - 4)(x - 5)
C. -4(x + 4)(x - 5)
D. -4(x + 4)(x + 5)
Answer: B
Mathematics
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Solve using substitution:
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Use the fundamental identities to simplify the expression.cos (-x) cos x - sin (-x) sin x
A. 2 B. 1 C. 0 D. cos2x sin2x
Mathematics
Use a calculator to approximate the square root to three decimal places. Check to see that the approximation is reasonable.
A. 8.718 B. 8.715 C. 8.723 D. 76.000
Mathematics
Solve the proportion.
= 
A. {29}
B. {8}
C. 
D. 
Mathematics