Answer:
or else what
Step-by-step explanation:
use slader.com
Answer:
18: b. y= -x+6
19: c. y-3=2(x-3)
Step-by-step explanation:
i hope this helps :)
Using the definition of vertical angles, the value of z is: 15.
<h3>Vertical Angles Pair</h3>
The two pairs of opposite angles formed when two straight lines intersect are called vertical angles, and are therefore congruent to each other.
Thus:
2z + 10 = 40
2z = 40 - 10
2z = 30
z = 30/2
z = 15
Therefore, using the definition of vertical angles, the value of z is: 15.
Learn more about vertical angles on:
brainly.com/question/1673457
Answer:
C. 3
Step-by-step explanation:
5x - 2 = 13
5x = 15
x = 15 ÷ 3
x = 3
Answer:
-3
Step-by-step explanation:
f(x)= x²+3x-1
f(-1)= (-1)²+3(-1)-1
= 1-3-1
= -2-1
= -3
