Answer:
b is the answer
Step-by-step explanation:
f(x) = ax^2 + bx + c
Answer:
If Samuel is 6 inches taller than Elijah and he is 48 inches tall then Elijah is 42 inches tall.
Given a = 3 and b = - 8 ,
= > 2b² - 4a + 4a²
= > 2( - 8 )² - 4( 3 ) + 4( 3 )²
= > 2( 64 ) - 4( 3 ) + 4( 9 )
= > 128 - 12 + 36
= > 116 + 36
= > 152
2x(-7)^2-9 = 2x49-9=98-9=89 maybe
Answer:
30
Step-by-step explanation:
20+2(3*7 - 4*4)
20+2(21-16)
20+2*5
20+10
30