Answer:

Step-by-step explanation:
we know that
The circumference of a circle is equal to

we have
<em>Circle X</em>


<em>Circle Y</em>

Find the radius ry
we know that

substitute the value of Cy


Remember that the value of rx is 
substitute

Answer:
Step-by-step explanation:
If the measures of angles 1 and 2 are congruent, then the measures of 3 and 4 should also be congruent because they are vertical angles.
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
Answer: 3x(3x + 2)
Answer: I Think it is 5
Step-by-step explanation:
1.25(3.9)=4.875
Carmen hiked 4.875 miles.
Hope this helps!