Answer:
Step-by-step explanation:
Step 1: Subtract -2x from both sides.
x2+x−7−−2x=−2x−−2x
x2+3x−7=0
For this equation: a=1, b=3, c=-7
1x2+3x+−7=0
Step 2: Use quadratic formula with a=1, b=3, c=-7.
x= −b±√b2−4ac / 2a
x= −(3)±√(3)2−4(1)(−7) / 2(1)
x= −3±√37 / 2
x= −3/2 + 1/2 √37 or x= −3/2 + −1/2 √37
Answer:
x= −3/2 + 1/2 √37 or x= −3/2 + −1/2 √37
5(-4m - 4) - 8(3m + 7) ≤ -76
Distribute 5 and -8 inside their respective parentheses.
-20m - 20 - 24m - 56 ≤ -76
Combine like terms.
-44m - 76 ≤ -76
Add 76 to both sides.
-44m ≤ 0
Divide both sides by -44 and flip the inequality sign because you are dividing by a negative number.
m ≥ 0
D) m ≥ 0
True
Every function is a relation, but not every relation is a function.
Hope this helps :)
An inequality is not equal (duh) so it includes signs like
> more than
< less than
<u><</u> equal to or less than
<u>></u> equal to or more than
so just write something that is true like
5>4
4>3
3<20
x<u>></u>39