Factor completely, if possible.r2- 8r + 16
A. (r - 8)(r + 8)
B. (r - 4)2
C. (r - 4)(r + 4)
D. (r + 4)2
Answer: B
Mathematics
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Set up an integral for the length of the curve.y = x8, 0 ? x ? 1
A. 
B. 
C. 
D. 
Mathematics
Use counting to determine the whole number that corresponds to the cardinality of the set.A = {x?x is a day in the week}
A. n(A) = 7 B. n(A) = 5 C. n(A) = 1 D. n(A) = 52
Mathematics
Solve using matrices.9x + 4y = -26x - 6z = -124y - 3z = 8
A. 
B. 
C. 
D. 
Mathematics
What is the coefficient of the highest-degree term in the polynomial below?
?
?
A. 9 B. -8 C. 5 D. 8 E. -9
Mathematics