Write the fraction in simplest form. Assume that all variable factors in the denominator are not equal to zero.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.When a person bends at the waist with a straight back, the force, F, exerted by the person's lower back muscles can be estimated with the formula 
where w is the person's weight, and ? is the angle made by the person's torso relative to the horizontal. Use the sum identity for sine to simplify F.
A. F = 2.89w sin ? B. F = 2.89w (sin ? + cos ?) C. F = -2.89w cos ? D. F = 2.89w cos ?
Mathematics
Solve the problem.Find the value of a if the tangent to the curve of y = -0.5x2 +ax has a slope of 1 for x = 12 .
A. -12 B. 12 C. 13 D. -13
Mathematics
1,043 ÷ 29.8
A. 35 B. 36 C. 3.5 D. 350
Mathematics
Write the word statement in symbols.Sixteen is less than or equal to nine plus eight.
A. 16 + 9 ? 8 B. 16 < 9 + 8 C. 16 ? 9 + 8 D. 9 + 8 ? 16
Mathematics