Decide whether the matrices are inverses of each other. (Check to see if their product is the identity matrix I.)
and 
A. Yes
B. No
Answer: B
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These triangles are similar. Find the missing length.
A. 1 B. 4 C. 3 D. 2
Solve.An omelette costs $1.00 more than Mario's order of pancakes. After treating his family to breakfast, Mario is sure that 6 omelettes and 3 orders of pancakes cost more than $25 but not more than $40, including tax of 7% and a tip of $3.50. In what price range is an order of pancakes?
A. [$1.54, $3.10] B. ($1.57, $3.12) C. ($1.54, $3.10] D. ($1.57, $3.12]
For the rational function below (i) Find the intercepts for the graph; (ii) Determine the domain; (iii) Find any vertical or horizontal asymptotes for the graph; (iv) Sketch any asymptotes as dashed lines. Then sketch the graph of y = f(x).f(x) = 
A. (i) x intercept: 0; y intercept: 0
(ii) Domain: all real numbers except 2
(iii) Vertical asymptote: x = 2; horizontal asymptote: y = -3
(iv)
B. (i) x intercept: 0; y intercept: 0
(ii) Domain: all real numbers except -2
(iii) Vertical asymptote: x = -2; horizontal asymptote: y = -3
(iv)
C. (i) x intercept: 0; y intercept: 0
(ii) Domain: all real numbers except -2
(iii) Vertical asymptote: x = -2; horizontal asymptote: y = 3
(iv)
D. (i) x intercept: 0; y intercept: 0
(ii) Domain: all real numbers except 2
(iii) Vertical asymptote: x = 2; horizontal asymptote: y = 3
(iv)
Solve the problem.The input-output matrix for an economy is Output: Agri. Mfg. Input:
= TThe demand matrix is D = 
Find the production matrix X.
A.
X = 
B.
X = 
C.
X = 
D.
X = 