Answer:
x={-2,2}
Step-by-step explanation:
Graph them when intersecting.
Algebraically:
x^2 + 1 = -x^2 + 9
Add x^2 on both sides and subtract 1 on both sides.
2x^2 = 8
Divide 2 on both sides
x^2 = 4
Square root on both sides
|x| = 2
Remove abs value by putting + or - on the other side
x = {-2,2}
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Answer: B.) 9
Explanation:
28000 -> 28 and 3000 -> 3
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
If we round 28 to the nearest multiple it’s 27
27 is 3x9
Mr.Ito changed his oil 9 times
According to the given graph, we can note the following:
The domain would be all the real numbers that
727.29 - 248.50 + x > = 500
Letter C
