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Sergio039 [100]
3 years ago
12

Jamie is getting a new fence around her pool the pool space in a perfect square with an area of 400 square feet if the fencing s

he picked costs $7 per foot how much will the fence cost her
Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0

Answer:

57 dollars and 14 or 15 cents

Step-by-step explanation:

400 divided by 7

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What is (x – 3)(2x + 1)
umka21 [38]

Answer:

(x – 3)(2x + 1)

Expand the terms

We get

2x² + x - 6x - 3

Final answer

2x² - 5x - 3

Hope this helps you.

3 0
3 years ago
Earthquakes and volcanic eruptions. What is their cause?
jok3333 [9.3K]

Answer:

plates shifting continental drift

8 0
3 years ago
Statistics please help I'm not good worth 50 points
mina [271]

(a) I can't help you with using your calculator for this part, but if you have some familiarity with your device you can check your answer with mine.

The mean is simply the sum of all the house costs divided by the number of houses:

(75k + 75k + 150k + 155k + 165k + 203k + 750k + 755k)/8 = 291k

So the population mean is $291,000.

The population standard deviation is the square root of the population variance. To get the variance, you take the sum of all the squared differences between the cost and the mean cost, then divide that sum by the number of houses. That is,

[(75k - 291k)² + (75k - 291k)² + … + (755k - 291k)²]/8 = 581,286k

Note that the variances is measured in square dollars. Then the standard deviation is

√(581,286k) ≈ $762,421.1

(b) The median is just the price in the middle. There were 8 houses sold, so there are 2 "middle" prices. The median is the average of these:

(155k + 165k)/2 = 160k = $160,000

(c) Yes, the mode is the data that shows up most frequently. This happens at the lower end, with $75,000 appearing twice.

8 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPP
Murljashka [212]
The answer would be C; put your equation into a fraction (525/50) and divide. You should get 10.5 which, in a fraction, is 10 1/2
6 0
3 years ago
Find the value of x so that the function has the given value.
GuDViN [60]

Answer:

-78

Step-by-step explanation:

-4/5+7;j(x0= -5

-4/5 equals 0.8

0.8 equals 80

-80+7= -73

-73 - -5= -78

X= -78

Please tell me if wrong

3 0
3 years ago
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