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gavmur [86]
3 years ago
15

Solve the equation using square roots. x^2 +10=9

Mathematics
2 answers:
almond37 [142]3 years ago
8 0

Answer:

x = ± √−1

No real solutions

Step-by-step explanation:

x^2 + 10 = 9

Subtract 10 from both sides

x^2 + 10 = 9

      - 10  - 10

x^2 = − 1

Take the square root

x = ± √−1

Paha777 [63]3 years ago
7 0

Answer:

Step-by-step explanation:

x²+10=9

x²=9-10

x²=-1=i²

x=±i

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Complete the equivalent equation for – 7x - 60 = x2 + 10x.
Murljashka [212]

Answer:

Equivalent equation: x^{2} +17x +60=0

Solution: x = {-12, -5}

Step-by-step explanation:

-7x-60=x^{2} +10x\\x^{2} +10x+7x +60=0\\x^{2} +17x +60=0\\x^{2} +12x+5x +60=0\\x(x+12)+5(x+12)=0\\(x+12)(x+5)=0\\x+12=0\: or \: x+5=0\\x=-12\: or \: x=-5\\x=-12,\:-5\\

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3 years ago
In Mr. Henry’s math classroom, there are 15 girls and a total of 26 students.Write the ratio of boys to girls in the form a:b. S
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Answer:

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11:15

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Step-by-step explanation:

7 0
3 years ago
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3 years ago
Write an equation in point-slope form of the line that passes through the point (5, 1) and has a slope of -3
bogdanovich [222]

Answer:

<h2>         y - 1 = -3(x - 5)</h2>

Step-by-step explanation:

An equation in point-slope form of the line that passes through the point (<em>x₁,y₁</em>) and has a slope of <em>m</em>:

y - y₁ = m(x - x₁)

m = -3

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Therefore:

y - 1 = -3(x - 5)

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Step-by-step explanation:

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