Find the reference angle for the given angle.-425°
A. 115°
B. 155°
C. 25°
D. 65°
Answer: D
Mathematics
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
When is the body moving backward?
A. 7 < t < 10 B. 4 < t < 7 C. 0 < t < 4 D. 0 < t < 2, 6 < t < 7
Mathematics
Find the product of the polynomials.(x + 3)(x2 - x + 8)
A. x3 + 24 B. x3 + 4x2 + 11x + 24 C. x3 + 2x2 + 5x + 24 D. x3 + 2x2 + 24
Mathematics
Find the indicated sum.
A. 
B. 
C. 58
D. - 
Mathematics
Factor the sum or difference of two cubes.x3 - 343
A. (x - 7)(x2 + 49) B. (x - 7)(x2 + 7x + 49) C. (x + 7)(x2 - 7x + 49) D. (x + 343)(x2 - 1)
Mathematics