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dangina [55]
3 years ago
6

The coordinate plane shows the floor plan for a swimming pool. What is the area of the pool’s border? A. 50 square meters B. 65

square meters C. 80 square meters D. 100 square meters E. 125 square meters
Mathematics
2 answers:
kondaur [170]3 years ago
7 0

////////

__________

its D

__________

///////////

soldier1979 [14.2K]3 years ago
3 0

Answer:

The answer is 100 meters

Step-by-step explanation:

I used the distance formula for the length and width of the pool

<em>The length was 10 and the width was 5</em>

Multiplied those together to get the area which i got 50.

I did the same thing with the length and width of the pool deck.

<em>the length was 15 and the width was 10</em>

i multiplied those together to get the area of everything which was 150.

But now we have to subtract the area of the pool from the area of the pool deck to get the exact pool deck area without the pool in it.

This answer is right:) Hope i helped!!

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In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the
Serhud [2]

Answer:

<h3>In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the sample results, the appropriate inference test is the<u> t test</u></h3>

Step-by-step explanation:

In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the sample results, the appropriate inference test is the<u> </u><u>t test</u>

<h3>For :</h3>
  • A t-test is one of the methods of a statistic and is used to determine if there is a significant difference between the two groups of their means based on a sample in data.  
  • The statistical significance is determined by the difference between the averages of group size , the sample size, and standard deviations of the groups.
<h3>Therefore option c) t test is correct</h3>

5 0
3 years ago
A cartoon having 50 oranges weight 7.5 kg how much will thousand oranges weight​
vodka [1.7K]

Answer:

150kg

Step-by-step explanation:

50 oranges ----- 7.5 kg

1000 -------   x

50 * x = 1000 * 7.5

x = 7500 / 50

= 750/5

=150

4 0
2 years ago
Which equation should you solve to find x?
devlian [24]

the answer is B ........

3 0
1 year ago
Substitution Method <br> y=x-4<br> y=4x-10
ira [324]

Answer:

x=2 and y= -2

Step-by-step explanation:

Substitute y=x-4 in second equation

x-4=4x-10

get x terms on one side and numbers on other sides

4x-x=10-4

3x=6

divide 3 on both sides

x=2

substitute x=2 in y=x-4

y=2-4

y= -2

4 0
2 years ago
The first time a census was taken in Esinville, the population was 12,621. Each year after that, the population was about 6% hig
Sedbober [7]
Step-by-step
Population was 12.621 when it was measured

Next year it rose by 6%, so add that 6% to 100% and multiply with population measured

12.621 × (100%+6%) = 12.621 × 106% = 13.379,24

Since a man cant be 0,24, we count that as +1

13.379,24 = 13.379 + 1 = 13.380

That was for a year after measurement, now let's calculate for another year
Now, add those 6% to a new population number

13.380 × (100%+6%) = 13.380 × 106% = 14.182,8

since 0,8 isn't a man, instead we add again +1

14.182,8 = 14.182 + 1 = 14.183

now let's do it for another year after last, by adding those 6% to a newest population number

14.183 × (100%+6%) = 14.183 × 106% = 15.033,98

round it again to +1, since 0.98 isn't a man

15.033,98 = 15.033 + 1 = 15.034

that is it, now graph is in the picture.

8 0
2 years ago
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