Answer:
x=0
Step-by-step explanation:
Anything to the power of 0 = 1
Answer:
10
Step-by-step explanation:
10+10+10+10+10+10+10+10+10+10=100
Answer
Positive 8 is the missing value
Step-by-step explanation:
-11 + 8 = -3
y² = 8y - 15 (alternate angles are equal)
y² - 8y + 15 = 0
(y - 5)(y - 3) = 0
y = 5 or 3
x + 8y - 15 = 180 (angles in a straight line add up to 180)
when y = 5
x + 40 - 15 = 180
x = 155°
when y = 3
x + 24 - 15 = 180
x = 171°
