Correct answer: sally needs 49.8 more inches of ribbon.
explanation: if needs 206.1 inches but already has 156.3 inches if you do 206.1-156.3 it would equal 49.8
Since the only two corresponding side you have are 10 units and 4 units, you can divide these two numbers to get the scale factor.
10÷4=2.5
next you find the sides corresponding to X Y and Z and if it is on the bigger figure you divide, if it is on the smaller side you multiply
X corresponds with 5 (so ×2.5)
Y corresponds with 8 (÷2.5)
Z corresponds with 10 (÷2.5)
final answer is X=12.5 Y=3.2 Z=4
I try to explain the question and give the answer, I hope this helps!
Step-by-step explanation:
Number of sides of the given polygon, n =5
Sum of interior angles =( n-2)180°
=( 5 - 2)180°
= 3*180°
= 540°
Missing angle, x = 540°- (100°+105°+110°+145°)
= 540°- 460°
= 80°
F(x)=y=(2x-2)/4
f^-1(x)=x=(2y-2)/4
4x=2y-2
4x+2=2y
f^-1(x)=y=2x+1
f^-1(3)=2(3)+1
=6+1
=7
Yes I believe that these are correct