Add and simplify.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Find the approximate values of r1 through r4 in the factorization6x4 - 12x3 - 7x2 + 13x - 1 = 6(x - r1)(x - r2)(x - r3)(x - r4).
What will be an ideal response?
Mathematics
Find the indicated trig function of ?, if ? is an angle in standard position with the terminal side defined by the given point.(21, 28); Find cos ?.
A. 
B. 
C. 
D. 
Mathematics
Multiply.(x + 4y)(x - 6y)
A. x2 - 5xy - 24y2 B. x - 2xy - 24y C. x2 - 2xy - 2y2 D. x2 - 2xy - 24y2
Mathematics
Perform the indicated operation and express in lowest terms.
÷ 
A. - 
B. 1
C. 
D. - 
Mathematics