Construct a truth table for the statement.(t ? p) ? (~t ? ~p)
A. 
| T | T | F |
F T T
F F T
B.
| T | F | F |
C.
| T | T | T |
F T F
F F T
D.
| T | T | T |
F T T
F F F
Answer: C
Mathematics
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Replace the question mark by < or > to make a true statement.
? 
A. < B. >
Mathematics
Factor out the greatest common factor.18x9y8 - 48x6y6 - 24x3y2
A. No common factor (except 1) B. 6x3y2(3x6y6 - 8x3y4 - 4) C. 6(3x9y8 - 8x6y6 - 4x3y2) D. 6x3(3x6y8 - 8x3y6 - 4y2)
Mathematics
Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.ln x + ln (x + 6) = 4
A. 
? 6.518
B. -6 + 
? 9.950
C. 
? -10.975
D. 
? 4.975
Mathematics
Solve the problem.Find the probability of having 4 girls in a 4-child family.
A. 
B. 
C. 
D. 
Mathematics