Solve by transforming the augmented matrix into row echelon form.
A. (5, 8, 7)
B. (5, 7, 8)
C. no solution
D. (-5, 8, 10)
Answer: A
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Determine whether (f ? g)(x) = x and whether (g ? f)(x) = x.f(x) = 
, g(x) = x5 + 6
A. No, yes B. No, no C. Yes, no D. Yes, yes
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, when 
, 
, 
and 
. Round to the nearest whole number.
?
?
__________
Fill in the blank(s) with the appropriate word(s).
Simplify the expression.(-5)-4
A. 625
B. -625
C. 
D. - 
Find the length of the third side of the right triangle. Give an exact answer and an approximation to three decimal places.
A. b = 25 B. b = 18 C. b = 20 D. b = 24