Use an Euler diagram to determine whether the argument is valid or invalid.A square is a parallelogram.A square has four sides. Therefore, A parallelogram has four sides.
A. valid
B. invalid
Answer: B
Mathematics
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Solve the equation.
- 
= 
A. {5, -5} B. {5} C. {-5} D. ?
Mathematics
Solve the problem.The shape of a barbecue pit is like a parallelogram with height of 40 in. and a base of 60 in. It costs $0.80 per ft2 to fill the pit with charcoals. How much does it cost?
A. $13.33 B. $160.00 C. $53.33 D. $1920
Mathematics
Match the inequality with the correct graph or interval notation.-9 ? x ? 9
A. (-9, 9) B. [-9, 9] C. (-?, 9) D. (-9, 9]
Mathematics
Solve the equation.x - 
= - 
A. 
B. 
C. - 
D. - 
Mathematics