M²+8m+16=45
m²+8m-29=0
D=64+4*29=180
m₁=(-8+√180)/2=2.7
m₂=(-8-√180)/2=-10.7
m₁=2.7
m₂=-10.7
Answer:
116°
Step-by-step explanation:
(there are 2 right angles)
90 + 90 = 180
180 + 64 = 244
(a quadrilateral adds up to 360°)
360 - 244 = 116
<span>4/100×50 is your answer $2</span>
Since both equations are equal to y you can just make them equal to each other, like this 3x + 7 = x - 9. From there isolate the varible x on one side so that the solution will be on the other side of the equation. I'll do the steps too for you.
3x + 7 = x - 9
2x + 7 = -9
2x = -16
x = -8
Hope this helps :)
