2 years ago

What is x if x squared minus 6x equals negative 25

Mathematics

1 answer:

Vilka [71]2 years ago

8 0

Answer:

Step-by-step explanation:

x2 - 6x = - 25

Rearrange the equation and let it be equal to 0

x2 - 6x +25 = 0

Using the Almighty formula

x =( -(-6) + √9)/2 or (-(-6) - √9)/2

x =4.5 or-1.5

x = 4.5

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Vladimir [108]

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3 years ago

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This looks pretty easy but i have no idea how you do it can someone help? <br><br> thanks :)

DochEvi [55]

Answer:

BOI YOU TALKING ABOUT SOME THIS LOOKS EASY, THIS DOESN'T EVEN LOOK EASY PLUS... i dont know the answer. Bye

Step-by-step explanation:

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2 years ago

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You can do both problems if want

Agata [3.3K]

A= π r2 and v=3.14d

---Volume(v=3.14d):

3.14(15) equals 47.1

47.1 rounds to 47

nearest hundreth would be 0 that rounds to .1 or .10,which rounds to 47
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3.14(7.5)^2 is 3.14(56.25)
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Answer:

The area of a circle with the diameter of 15 is 176.630.

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3 years ago

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3 years ago

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The sum of the first 20 positive odd integers

svet-max [94.6K]

Answer:

$400$

Step-by-step explanation:

$We\ know\ that,\\'The\ sum\ of\ n\ no.\ positive\ odd\ integers\ is\ given\ by\ the\ formula:\\S_O=n^2\\Hence,\\Here,\\As\ n=20,\\The\ sum\ of\ the\ first\ 20\ positive\ odd\ integers=20^2=400\\$

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3 years ago