Solve using the substitution method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.3x + y = 132x + 9y = -8
A. (-5, -2)
B. (5, 2)
C. (-5, 2)
D. (5, -2)
Answer: D
Mathematics
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Solve the problem.Find the moment of inertia Iz of a tetrahedron of constant density 
bounded by the coordinate planes and the plane 
.
A. 45
B. 
C. 
D. 162
Mathematics
The Roman numeral xix can be written as the Hindu-Arabic number
A. 26
B.
| 19 |
C. 16
D. 21
Mathematics
Provide an appropriate response.Solve the following absolute value equation: 
= 12
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.There were 460 people at a play. The admission price was $2 for adults and $1 for children. The admission receipts were $670. How many adults and how many children attended?
A. 210 adults and 250 children B. 167 adults and 293 children C. 125 adults and 335 children D. 250 adults and 210 children
Mathematics