Add or subtract as indicated.(-2a + 7b - c) - (-4b - 6c + 2d)
A. -2a + 11b + 5c - 2d
B. -2a + 11b - 5c + 2d
C. -2a + 11b + 7c - 2d
D. -2a + 11b + 5c + 2d
Answer: A
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A. 0.1 in. from the vertex B. 0.8 in. from the vertex C. 10.1 in. from the vertex D. 0.2 in. from the vertex
Translate the phrase to an algebraic expression. Use "x" to represent "a number". The product of a number and -4
A. x - 4
B. x ? 
C. x ? 4
D. x ÷ 
0 ? t < 
and cos t is given. Use the Pythagorean identity sin2 t + cos2 t = 1 to find sin t.cos t = 
A. 
B. 
C. 
D. 
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A. 17.64x - 3.1 B. -17.64x - 3.1 C. -17.64x - 13.02 D. 17.64x - 13.02