Answer:
x = -6
Step-by-step explanation:
Solve for x over the real numbers:
2 x^2 + 24 x + 72 = 0
Divide both sides by 2:
x^2 + 12 x + 36 = 0
Write the left hand side as a square:
(x + 6)^2 = 0
Take the square root of both sides:
x + 6 = 0
Subtract 6 from both sides:
Answer: x = -6
graph c
because the graph x = -2 is a vertical line at -2 on the x axis
Answer:
38 in
Step-by-step explanation:
P=w+w+h+h=18+18+6+6=26+12=38 in
Answer:
131.25
Step-by-step explanation:
25r²-10r+10r-4=0
25r²-4=0 (Since -10 and 10 cancel each other out)
25r²=4
Divide both sides by 4 to get r² = 6.25
Square both sides to get r = 2.5
Plug 2.5 back into the equation to get the answer of 131.25
Answer:
axis of symmerty = x coordinate of vertex = -b/2a
-6/2 = <u>-3 = x</u>
<u />
vertex = (-3,y)
-3^2 +6(-3)
9-18 = -9 = y
<u>(-3,-9) = vertex</u>
Step-by-step explanation:
