Given:
x = -3, y = 8, and z = -4
Let's solve the following:
• 17. xz
Substitute -3 for x and -4 for z.
We have:
[tex]\begin{gathered} xz=(-3)\text{ }\ast\text{ (-4) = 12} \\ \\ xz\text{ = 12} \end{gathered}[/tex]
• 19. x + 11
Substitute -3 for x and evaluate.
We have:
[tex]\begin{gathered} x\text{ + 11 = -3 + 11 = 8} \\ \\ x+11=8 \end{gathered}[/tex]
• 16. y - (-5)
Substitute 8 for y and evaluate.
We have:
[tex]\begin{gathered} y\text{ - (-5) = 8 - (-5) = 8 + 5 = 13} \\ \\ y\text{ - (-5) = 13} \end{gathered}[/tex]
• 18. ,-8 ÷ y
Substitute 8 for y and evaluate
We have:
[tex]-8\div y=-8\div8\text{ = }-1[/tex]
ANSWER:
xz = 12
x + 11 = 8
y - (-5) = 13
-8 ÷ y = -1
