Answer:
D)
Step-by-step explanation:
f(x) = x^2 -14x -72
0=x^2 - 14x-72
0=x^2 - 18x+4x-72
0=x(x-18)+4(x-18)
0=(x-18)(x+4)
x-18=0 or x+4=0
x1=18 or x2=-4
asis of symmetry: x=(x1+x2)/2
x=(18+(-4))/2
x=14/2
x=7
Covert into scientific notation?
Answer:
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Step-by-step explanation:
STEP 1: <em>Rewrite so
n is on the left side of the inequality.</em>

STEP 2: <em>Subtract 2
n from 6
n
.</em>

STEP 3: <em>Move all terms containing n to the left side of the inequality.</em>
<em />
<em />
Answer:
144 in²
Step-by-step explanation: