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stepan [7]
3 years ago
8

Solve x^2 + 25 = 6x

Mathematics
1 answer:
aivan3 [116]3 years ago
7 0
<h3>I'll teach you how to solve x^2 + 25 = 6x</h3>

----------------------------------------------------------

x^2 + 25 = 6x

Subtract 6x from both sides:

x^2+25-6x=6x-6x

Simplify:

x^2-6x+25=0

Solve with the quadratic formula:

For the quadratic equation of the form ax^2+bx+c=0 the solutions are:

1^x,2 = -b +,- sqrt b^2-4ac/2a

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3+4i

x= -(-6)+ sqrt (-6)^2-4*1*25/2*1 = 3-4i

Your Answer Is x=3+4i, x= 3-4i

plz mark me as brainliest :)

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4 years ago
HELP PLEASE!!! 28 POINTS!! 1)A professional pianist spends an average of 45 hours practicing the piano in a three-week period. U
tigry1 [53]

Answer:

Part 1) 180\ hours

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Step-by-step explanation:

Part 1) we know that

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Let

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so

Convert months to weeks

3 months=3(4)=12 weeks

using proportion

\frac{45}{3}\frac{hours}{weeks} =\frac{x}{12}\frac{hours}{weeks}\\ \\ x=45*12/3\\ \\x=180\ hours

that means------> In three months (12 weeks) the pianist practice 180 hours

Part 2)

Let

x------> the number of bass

y------> the number of catfish

we know that

Using proportion

\frac{10}{7}\frac{bass}{catfish} =\frac{425}{y}\frac{bass}{catfish} \\ \\y=425*7/10\\ \\y=297.5\ catfish

There are about 298\ catfish

8 0
3 years ago
Sara's new car depreciates 8% each year.
marusya05 [52]
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5 0
3 years ago
There are (108)2 ⋅ 100 candies in a store. What is the total number of candies in the store?
olga2289 [7]

Just multiply.

(108)2 = 216

216 • 100 = 21,600

Done!

5 0
3 years ago
Read 2 more answers
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