Answer:121 degrees
Step-by-step explanation: from a test
Answer:
f(r) = 2πr
Step-by-step explanation:
You know the formula for circumference in terms of radius is ...
C = 2πr
You are being asked to write this as a function named "f". That will be ...
f(r) = 2πr
Similar figures are figures of the same shape but different (or same) size.
Thus, they look the same, but one is bigger than the other by a scale factor.
Congruent figures are figures of the same shape AND same size.
They can be mapped onto each other using any type of transformation (besides dilations).
Similar figures can be dilated.
Answer:
x = -9
x = 2
Step-by-step explanation:
Given:

First, note that

Since
and
stay in the denominator, then

Now add two fractions which stay in the left part. The common denominator is
so multiply the numerator of the first fraction by
and the numerator of the second fraction by
and subtract them in the numerator:
