The answer to that would be 2
Answer:
the first one: y=2x ²-1
Step-by-step explanation:
Plug in the "x" to the equation, so: 2(2) ²-1 = 7 which is "y" in the table above.
Answer:
x=2
z=80
Step-by-step explanation:
Since (7x+66) and (11x+78) are a linear pair, their measures are supplementary and therefore add up to 180 degrees. z and (7x+66) are also vertical angles, meaning that they are equal.
7x+66+11x+78=180
18x+144=180
18x=36
x=2
z=7x+66=7(2)+66=14+66=80
Hope this helps!
Answer:17-10n
Step-by-step explanation:
