The angle right above 4x is equal to x
and 4x + x = 180
5x = 180
/5 /5
x = 36
Answer:
A≈615.75m²
Step-by-step explanation:
Solution
A=4πr2=4·π·72≈615.75216m²
Hope this helped!!!
Answer:
D
Step-by-step explanation:
-(-4)=+4
so it is -20+4
Answer:
-1
Step-by-step explanation:
2 × (-1²) + 1 = 2 × (-1) + 1 = -2 + 1 = -1