Answer:
a. x=600
b. y=60
c. x = 150 and y = 45
Step-by-step explanation:
0.25x+2.50y=150
9 times 8 times 7 will give you 504
Y=2x-3 rise over run and then the y intercept
Answer:
144°
Step-by-step explanation:
step 1
Find the measure of the central angle of the regular pentagon
Divide 360 degrees by 5 (the number of sides)
Let
c----> the center of the pentagon
we know that
m∠ECA=72°
m∠ACB=72°
therefore
m∠ECB=m∠ECA+m∠ACB
substitute the values
m∠ECB=72°+72°=144°
The measure of angle ECB is equal to the degrees that the pentagon rotate