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3 years ago

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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In Nancy's class, 11/18 of the girls have brown eyes, 2/9 of the girls have blue eyes, and 1/6 of the girls have hazel eyes. Wha

alukav5142 [94]

It would be: 11/18 - 1/6

= 11 - 3 / 18

= 8/18

= 4/9

In short, Your Answer would be Option D

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7 0

2 years ago

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In the 2016 Rio Olympic games, the total of gold, silver and bronze medals won by China was 70.

Oksana_A [137]

26 gold metals

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2 years ago

So if a video that is 15:34 how long is it when 2 times speed

rusak2 [61]

Answer:

7:47

Step-by-step explanation:

Here are two ways of solving this:

The video will be half the time of 15:34, so you need to divide the time 15:34 by 2.

Method 1)

Use the tip. The video is 15 minutes and 34 seconds long.

Convert minutes to seconds: 15 * 60 = 900

Add 34 seconds to the 15 minutes: 900 seconds + 34 seconds = 934 seconds

The video is 934 seconds long.

Divide the total seconds by 2: 934/2 = 467

467 seconds = 420 seconds + 47 seconds = 7 minutes and 47 seconds

Answer: 7:47

Method 2)

Divide the minutes by 2 and divide the seconds by 2.

15 minutes and 34 seconds.

Divide minutes by 2: 15/2 = 7.5

Divide seconds by 2: 34/2 = 17

Now we need to add 7.5 minutes and 34 seconds.

0.5 minutes is half a minute, so it's 30 seconds.

7.5 minutes + 17 seconds =

= 7 minutes + 0.5 minute + 17 seconds

= 7 minutes + 30 seconds + 17 seconds

= 7 minutes + 47 seconds

= 7:47

Answer: 7:47

6 0

2 years ago

3 1 point 3.5m + 90 = 132 m = type your answer...

Anon25 [30]

The answer is
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4 0

2 years ago

Which equation represents a proportional relationship? A. y = x + 1 3 y=x+13 B. y = 1 − 1 3 x y=1-13x C. y = 3 x + 1 3 y=3x+13 D

34kurt

Answer:

Option D. $y=\frac{1}{3}x$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Verify each case

case A) we have

$y=x+\frac{1}{3}$

Remember that

the line must pass through the origin

For x=0, y=0

In this case

For x=0

$y=0+\frac{1}{3}=\frac{1}{3}$

The line not passes through the origin

therefore

The equation A not represent a proportional relationship

case B) we have

$y=1-\frac{1}{3}x$

Remember that

the line must pass through the origin

For x=0, y=0

In this case

For x=0

$y=1-\frac{1}{3}(0)=1$

The line not passes through the origin

therefore

The equation B not represent a proportional relationship

case C) we have

$y=3x+\frac{1}{3}$

Remember that

the line must pass through the origin

For x=0, y=0

In this case

For x=0

$y=3(0)+\frac{1}{3}=\frac{1}{3}$

The line not passes through the origin

therefore

The equation C not represent a proportional relationship

case D) we have

$y=\frac{1}{3}x$

Remember that

the line must pass through the origin

For x=0, y=0

In this case

For x=0

$y=\frac{1}{3}(0)=0$

The line passes through the origin

therefore

The equation D represent a proportional relationship

3 0

2 years ago