The answer to this is 65.
Remember that the angles opposite of each other equal to 180. So a+c=180 and b+d=180.
First, we solve for x. Since we know that b and d equal to 180, we subtract 148 from 180.
180-148=32. x=32.
Then we plug that in the expression for angle a.
2x+1 becomes 2(32)+1
2*32=64
64+1=65.
a=65
The answer is c I hope it helps
The circumference is the diameter times PI
The exact circumference would be 9PI cm
The approximate circumference would be 9 x 3.14 = 28.26 cm
Answer:
90
Step-by-step explanation:
Any line y=m is horizontal. The y-coordinate of any point lying on such line is m, only x-coordinates change.
If y=1, then two points on the line are (x₁,1) and (x₂,1).
So, the slope of this and any horizontal line is 0.
The answer is a.