SHOW YOUR WORK WILL MARK BRAINLIEST IF YOU GET IT RIGHT solve by completing the square X²+6x-22=0
1 answer:
9514 1404 393
Answer:
x = -3±√31 ≈ {-8.568, +2.568}
Step-by-step explanation:
The usual steps are to ...
group the x-terms
(x² +6x) -22 = 0
add and subtract the square of half the x-coefficient
(x² +6x +(6/2)²) -22 -(6/2)² = 0
simplify to a binomial square
(x +3)² -31 = 0
Solve for x.
(x +3)² = 31
x +3 = ±√31
x = -3 ±√31 . . . . . solution to the quadratic
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Anwser - c 0.70 I pretty sure
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Answer:
Δy=(10+5)=15
Step-by-step explanation:
we know that
The formula to calculate Δy between two points is equal to
Δy=(y2-y1)
we have
(-3, -5) and (0, 10)
substitute the values
Δy=(10-(-5))=(10+5)=15
Answer:
14
Step-by-step explanation:
All you do is divide 56 by 1/4 which will give you 14.
to check you can mulitply 14 times 4 and you will get 56.