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Inessa [10]
3 years ago
11

The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?

Mathematics
2 answers:
AlekseyPX3 years ago
5 0

Answer:

Use the distance formula to find the length of each side, and then add the lengths.

Step-by-step explanation:

We are given the vertices of a quadrilateral in the coordinate plane.

We have to find the perimeter of the figure.

For doing so, we have to find the length of all the sides of a quadrilateral

The length of a line segment joining points (x1,y1) and (x2,y2) is given by the distance formula:  \sqrt{(x2-x1)^2+(y2-y1)^2}

after finding length of all the sides, we add the length of each side to get the perimeter.

Hence, the correct option is:

Use the distance formula to find the length of each side, and then add the lengths.

vladimir2022 [97]3 years ago
5 0
You can find the distance of each side and add up the values.
Your answer is A.
gimme brainliest plzzzz thank u


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What is the area of a triangle with a base of 1.3cm and height of 0.5 cm?
sammy [17]

Answer:

0.325 cm²

Step-by-step explanation:

A = \frac{1}{2}bh = \frac{1}{2}*1.3*0.5 = 0.325 cm²

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Ther are four test scores 97,85,92,86. what is the mean median and mode?
Firdavs [7]
The mode is the score that occurs the most often and the median is the middle number when arranged in order.
6 0
3 years ago
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What value of x satisfies the equation 5x+1.5=7
Arte-miy333 [17]
First thing we are going to do to solve this is to subtract 1.5 from both sides so:
<span>5x+1.5−1.5</span>=<span>7−1.5
</span>5x<span>=5.5
</span>Next we are going to di<span>vide from both sides by 5 so:
</span><span><span>5x/</span>5</span>=<span>5.5/<span>5
Finally your final answer shall be:
</span></span><span>x=1.1

I hope this helps!</span>
4 0
3 years ago
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There are five families that each have one child. Each of them hires Riley as a babysitter. Because the children she babysits ar
GREYUIT [131]

Answer:

Average Rate of Pay = $ 5.23 /hr

Step-by-step explanation:

We have a data in form of Hours of Baby Sitting and Amount of Pay. Since the Amount of pay depends upon the Hours of Baby Sitting. Thus, we take y = Amount of Pay, while x = Hours of Baby Sitting. So, the data becomes:

x (Hours) =   12      13      16      17       20

y ($)         =  54     56     65     64     100  

The statistical data calculated is:

∑x = 78,   ∑x² = 1258,   ∑y = 339,  ∑xy = 5504,   n = no. of data points = 5

Now, we use linear regression model to fit a straight line to this data.

y = a + bx   --------- eqn (1)

where,

b = [ n∑xy - ∑x.∑y]/[n∑x² -(∑x)²]

b = [ (5)(5504) - (78)(339)]/[(5)(1258) - (78)²]

b = 5.23

and,

a = (∑xy - b∑x²)/∑x

a = [5504 - (5.23)(1258)]/78

a = -13.83

Therefore, eqn (1) becomes:

<u>y = -13.83 + 5.23x</u>

The graph plot of this straight line fit is provided in the attachments.

Now, we derivate the equation with respect to x, to get the average rate of pay:

Average Rate of Pay = dy/dx = d/dx(-13.83 + 5.23x)

<u>Average Rate of Pay = $ 5.23 /hr</u>

8 0
3 years ago
One hose can fill a small swimming pool in 65 minutes. A larger hose can fill the pool in 60 minutes. How long will it take the
adelina 88 [10]
<h2><u>22 minutes 44 seconds</u></h2>

Step-by-step explanation:

1st horse time taken = 65 min/job; invert to get rate = 1/65 job/min

2nd horse time taken = 35 min/job ; invert to get rate = 1/35 job/min

Together Time taken = <em>n</em> min/job ; invert to get rate = 1/<em>n</em> job/min

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

Equation :-

Rate + Rate = together rate

1/65 + 1/35 = 1/n

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

35<em>n</em> + 65<em>n</em> = 35*65

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

100<em>n</em> = 2275

<em>n</em> = 22.75 minutes = <u>22 </u><u>minutes</u><u> 45 </u><u>seconds</u>

Hope it helps you...

Pls mark brainliest if it helps you...

(Answered by Benjemin)

6 0
3 years ago
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