All categories

3 years ago

Find the perimeter of the square:

Mathematics

1 answer:

Anna [14]3 years ago

7 0

By definition a square has all 4 sides equal, the area of a square is sxs or s^2, so s^2 = 400, s = square root of 400 = 20. All sides will be equal to 20 m. The perimeter is the sum of the sides or 4 x s or 80.

Steps:

A= L^2

Where L is length of the side

400=L^2 》》》》》 square root

L= 20 all sides of square are 20 m

P = 4L

=4(20)

=80m

You might be interested in

The distance between the parallel lines x – 2y = 3 and 2x – 4y = 12 is

Svetradugi [14.3K]

Given :

Parallel lines are

x – 2y = 3 and 2x – 4y = 12

Step-by-step explanation:

Lets write the given lines in slope intercept form y=mx+b

$x -2y = 3 \\-2y=-x+3\\Divide \; both \; sides \; by -2\\y=\frac{x}{2} -\frac{3}{2}$

From the above equation , y intercept of first line is $\frac{-3}{2}$

Solve the second equation for y and find out y intercept

$2x-4y=12\\-4y=-2x+12\\Divide \; by \; -4\\y=\frac{1}{2} x-3$

y intercept of second line is -3

To find the distance between parallel lines, we subtract the y intercepts

$\frac{-3}{2} -(-3)=\frac{-3}{2} +\frac{6}{2} =\frac{3}{2} =1.5$

Answer:

The distance between the parallel lines = 1.5

Reference:

brainly.com/question/24145911

7 0

4 years ago

Read 2 more answers

Pleaaaaaaase help me!! :)

Paul [167]

Hello there, and thank you for posting your question here on brainly.

<em>Short answer: 25.48 x 10^4
</em>
Why?

This equation has a few steps. Simplify the brackets. (2.8 x 10^-2)*(9.1 x 10^6) --> 2.8 x 10^-2 * 9.1 x 10^6 Simplify. (or multiply the two decimals) 2.8 x 10^-2 * 9.1 x 10^6 --> 25.48 x 10^-2 x 10^6 Use the <em>product rule. </em>(the formula is x^y x^z = x^ y+z) 25.48 x 10^-2 x 10^6 --> 25.48 x 10^4

Hope this helped you! ♥

5 0

4 years ago

Write an equation of a line parallel to y = -2x + 3 that passes through (-2,-1)

ElenaW [278]

$\boxed{y=-2x-5}$

<h2>Explanation:</h2>

The slope-intercept form of the equation of a line:

$y=mx+b \\ \\ \\ Where: \\ \\ m:Slope \\ \\ b:y-intercept$

The given line has the following characteristics:

$y=-2x+3 \\ \\ \\ So: \\ \\ m=-3 \\ \\ b=3$

So the line we are looking for needs to be:

$y=-2x+b \\ \\ \\ It \ passes \ through \ (-2,-1): \\ \\ -1=-2(-2)+b \\ \\ b=-1-4 \\ \\ b=-5$

So, the equation of the line would be:

$\boxed{y=-2x+3}$

<h2>Learn more:</h2>

Many-to-one function: brainly.com/question/12881881

#LearnWithBrainly

3 0

4 years ago

(03.03 MC) Choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) Select one: a. line through th

Mnenie [13.5K]

Answer:

your line goes through both (0,6) and (12,0)

Step-by-step explanation:

Ok so you are describing some lines you see I think:

I see some of these as points you mentioned:

(0,6) , (0,-6) , (6,0)

So let's see which of these work:

(0,6)?

2(0)+4(6)=24

24=24

(0,6) does work!

The other point you have listed with (0,6) is (12,0).

Let's try (12,0)

2(12)+4(0)=24

24+0=24

24=24

(12,0) works!

So your line goes through both (0,6) and (12,0)

7 0

3 years ago

Read 2 more answers

5(x+2)=6x+3x-14 please solve

zavuch27 [327]

Answer:

5(x+2)=6x+3x−14

Step 1: Simplify both sides of the equation.

5(x+2)=6x+3x−14

(5)(x)+(5)(2)=6x+3x+−14(Distribute)

5x+10=6x+3x+−14

5x+10=(6x+3x)+(−14)(Combine Like Terms)

5x+10=9x+−14

5x+10=9x−14

Step 2: Subtract 9x from both sides.

5x+10−9x=9x−14−9x

−4x+10=−14

Step 3: Subtract 10 from both sides.

−4x+10−10=−14−10

−4x=−24

Step 4: Divide both sides by -4.

−4x

−4

−24

−4

x=6

Answer:

x=6

7 0

3 years ago