Solve the system by elimination.
A. (7, 6)
B. (6, 7)
C. (-7, 6)
D. (6, -7)
Answer: B
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Use substitution to factor the polynomial.80z8 + 84z5 + 16z2
A. 4z2(4z3 + 1)(5z3 + 4) B. 4(4z6 + 1)(5z2 + 4) C. 4z2(5z3 - 4)(4z3 - 1) D. (16z4 - 20)(5z4 + 4)
Write out the first five terms of the sequence.{sn} = {4n - 2}
A. s1= 2, s2= 3, s3= 4, s4= 5, s5= 6 B. s1= 6, s2= 10, s3= 14, s4= 18, s5= 22 C. s1= -2, s2= -6, s3= -10, s4= -14, s5= -18 D. s1= 2, s2= 6, s3= 10, s4= 14, s5= 18
Find the exact value of the expression.cos
A. - 
B. - 
C. 
D. - 
If necessary, write the equation in the standard form ax2 + bx + c = 0. Then identify the values of a, b, and c. Do not actually solve the equation.-6x2 - 15x + 12 = 0
A. a = 6, b = 15, c = 12 B. a = 12, b = 15, c = -6 C. a = 6, b = -15, c = 12 D. a = -6, b = -15, c = 12