Determine whether the matrix is in row-echelon form. If it is, then determine also whether it is in reduced row-echelon form.
A. Yes; yes
B. Yes; no
C. No
Answer: B
Mathematics
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Construct a truth table for the statement.(s ? q) ? (~q ? t)
A. 
| T | T | T | F |
T F T T
T F F F
F T T T
F T F F
F F T F
F F F T
B.
| T | T | T | T |
T F T F
T F F F
F T T F
F T F F
F F T F
F F F F
C.
| T | T | T | F |
T F T T
T F F T
F T T T
F T F F
F F T T
F F F T
D.
| T | T | T | T |
T F T T
T F F T
F T T T
F T F F
F F T T
F F F T
Mathematics
Compute the division. Express your answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Find the sum of the geometric series.
Express the answer as a fraction.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A building contractor finds that 
can of pipe joint compound is needed to plumb each new home. How many homes can be plumbed with 18 cans of compound?
A. 7
homes
B. 45 homes
C. 18 homes
D. 22
homes
Mathematics