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Mice21 [21]
3 years ago
12

What is the solution of X2+10x=11

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
4 0
X= 1,-11 I think that’s the answer it depends how you wanna solve it that’s the answer for x.
Lady_Fox [76]3 years ago
3 0

Answer:

x = -11 or 1

Step-by-step explanation:

x² + 10x = 11

Subtract 11 from both sides

x² + 10x - 11 = 11-11

x² + 10x - 11 = 0

Factorise by finding 2  factors of -11 that the sum would be +10

+11 and -1 = +11 -1 = +10

Therefore we rewrite equation as

x² + 11x - x - 11 = 0

Facyorise

x(x + 11) -1(x + 11) = 0

(x + 11) (x - 1) = 0

(x + 11) =0 or x - 1 = 0

Therefore

x = -11 or x = 1

x = -11 or 1

I hope this was helpful, please rate as brainliest

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Can I have help solving for x?:))
zvonat [6]

Answer:

24.8

Step-by-step explanation:

We will have to use trigonometry here to find the value of x. The first thing we can see is that we need to work out the hypotenuse. We need to chose whether to use Sin, Cos or Tan. We do that by look at the sides .

→ 'x' is the hypotenuse

→ 12 is opposite

→ The adjacent is the side that doesn't have a numerical value to we look for a formula triangle without adjacent in it

Tan = Opposite ÷ Adjacent

Sin = Opposite ÷ Hypotenuse

Cos = Adjacent ÷ Hypotenuse

We can see the Sin formula has no adjacent in it so we use that formula. However we want to work out the hypotenuse so we have to rearrange the sin formula to get hypotenuse as the subject so

Sin = Opposite ÷ Hypotenuse

Hypotenuse = Opposite ÷ Sin

→ Let's substitute in the values

Hypotenuse = 12 ÷ Sin(29)

Hypotenuse = 24.7519841

So the value of x is 24.8 to 1 decimal place

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3 years ago
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Name another pair of metric units of length that have the same relationship
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<span>One pair of metric unit of length would be meters and kilometers. 1 km is equal to 1000 meters. Metric system is the official/standard in measuring length, mass, area, volume, speed, etc. and it is the agreed system of measurement.</span>

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Express the area A of a circle as a function of its​ radius, r. Determine the area of a circle whose radius is 11 inches. That​
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<h2>Answer with explanation:</h2>

The function represents the area of a circle(A) is given by :-

A(r)=2\pi r

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