5a - 4a = -9 - 8a
a = -9 - 8a
9a = -9
a = -1
The answer is C) 160.
We know this because if mA = 50, we know that mC must also be 50. This is due to the fact that AB = BC. This leaves us with mB as 80 since the angles of a triangle always have to equal 180.
Now knowing this, it is easy to find the arc lengths in degrees. When you have a transcribed triangle, all we are going to do here is double the angle of the triangle to get the arc measure.
mB = 80
80*2 = 160
1.) 1 ÷ 4 =0.25 + 9= 9.25
2.) 9.25 + 5.00 = 14.25
Answer:
X=-1/2
Y=3/4
Step-by-step explanation:
What should denise do for her next step?
Answer: Out of all the options presented above the one that best represents the next step that denise should take after already using her straightedge and compass to construct the circle, lines, and arcs is to use the straightedge to draw line ac, line ad, line bc, and line bd. use the compass and straightedge to construct the bisector of ∠cpb∠cpb. Please see the attachment as reference to how it should look like once it is completed.
I hope it helps, Regards.
