Answer:google
Step-by-step explanation google
Answer:
Step-by-step explanation:
4 1/4x7/8
I think 119/32
This is the equation for a circle. The center of the circle is the source and the outside of the circle is the radio signal. x-4 notes the x-coordinate (or "h") of the center of the circle, and y-2 notes the y-coordinate (or "k") of the center of the circle. Therefore, the center of the circle sits at (4,2). The formula for a circle is (x-h)^2 + (y-k)^2 = r^2. So the 169 is the square of the radius, which is 13. So the source sits at (4, 2) and the signals are at a radius length of 13, or 13 units from the center.
Answer:
128.4 units.
Step-by-step explanation:
We need to set up ratios to do this problem.
Because both trapezoids are similar, we know that all corresponding sides are similar.
![\frac{42}{35} = \frac{x}{107}](https://tex.z-dn.net/?f=%5Cfrac%7B42%7D%7B35%7D%20%3D%20%5Cfrac%7Bx%7D%7B107%7D)
Simplify.
![4,494 = 35x](https://tex.z-dn.net/?f=4%2C494%20%3D%2035x)
Divide both sides by 35.
![x = 128.4](https://tex.z-dn.net/?f=x%20%3D%20128.4)
Oh that question
Parallel sides
Opposite sides are congruent
And diagonals bisect each other