Answer:
y=3
Step-by-step explanation:
y = 3x2 + 3x-1
y = 6 + -3
y = 3
y=8
y=2x+x-1
replace x with 3
y=2(3)+(3-1)
y=6+2
x = 63
The sum of the angles of a triangle is 180
71+46+x = 180
Combine like terms
117+x =180
Subtract 117
117+x-117= 180-117
x =63
-50 + 100 - 30 = x
hope this helps
plz mark brainliest
2144.66
V = 4/3 π r^3
