Answer:
x = -1 or
x = -7
Step-by-step explanation:
Given DAB and BCD are similar :
2x^2 + 7 = x^2 - 8x make the left side of equation 0 by exporting all terms to right side
2x^2 - x^2 + 8x + 7 = 0 add like terms
x^2 + 8x + 7 = 0
(x + 1) * (x + 7) = 0 in this case x is either -1 or -7
<span>5x - 200 = 100
5x = 100+200
5x = 300
</span><span>x = 300/5
x = 60
He has mowed 60 lawns so far.</span>
Answer:
x=10/c
Step-by-step explanation:
3(cx-7)=9
(cx-7)=3
cx=10
x=10/c
Slope = rise / run
slope = 4 / 4
slope = 1
The coordinates are (6,-9) (-12,-3) (0,-7)
you put 6 in the place of x to get 6+3y=-21 then you must take 6 away from each side to get 3y= -27 then divide each side by 3 so -27 divided by 3 is -9. do this for all of them! hope it helped!