Answer:
40
Step-by-step explanation:
28+12= 40
if my answer helps please mark as brianliest.
3(x-7)=4•6
3x-21=24
3x=45
X=15
Answer: 4
Step-by-step explanation: Length times width times height so you have to do 12 divided by 3 and you get 4
Answer:
You may find diameter and then inside and outside volume
Answer:
Step-by-step explanation:
Your equation makes no sense.
I will ASSUME you mean
y = -x² - 2x + 3
which can be factored
y = (x + 3)(-x + 1)
x intercepts occur when y = 0
0 = (x + 3)(-x + 1)
which means either
x + 3 = 0
x = -3
or
-x + 1 = 0
x = 1
x intercepts are (-3, 0) and (1, 0)
The vertex will occur halfway between these point
x = (-3 + 1) / 2 = -1
so vertex = y = -(-1)² - 2(-1) + 3 = 4
(-1, 4)
