Provide an appropriate response.Factor: x2 + 13x + 40
A. (x + 5)(x + 8)
B. (x + 4)(x + 10)
C. (x + 2)(x + 20)
D. (x + 3)(x + 10)
Answer: A
Mathematics
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A. ? = 
B. ? = - 
C. ? = 
D. ? = 
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Find the angle of least positive measure coterminal with the given angle.-47°
A. 223° B. 313° C. 43° D. 47°
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Find the nonreal complex solutions of the equation.-5x2 - 4x - 4 = 0
A. 
B. 
C. 
D. 
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Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. cos x + 1 B. tan x - sec x C. cot x + sin2x D. sin x + cos x
Mathematics