Answer:

Step-by-step explanation:
becauseby pytagorean theorem we get

16+81=c squared
97 =c squared
c=radical 97
Answer:
Step-by-step explanation:
The function f(x) is 3x+5
● (f-1)(x) = 3x+5 -1
● (f-1)(x) = 3x+4
Replace x with 3
● (f-1)(x) = 3×3+4 = 13
Answer:
80 degrees
Step-by-step explanation:
ALL TRIANGLES MUST EQUAL 180 DEGREES!
180-70-30 = 80
Say it with me.
<em>ALL TRIANGLES MUST EQUAL 180 DEGREES!</em>
<em>ALL TRIANGLES MUST EQUAL 180 DEGREES!</em>
<em>ALL TRIANGLES MUST EQUAL 180 DEGREES!</em>
Also, triangle CED reflects over the invisible y-axis. Angle C is shared = 70. Angle E is Angle A, and Angle B is Angle D (which is 80 degrees).