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nika2105 [10]
3 years ago
8

I'm stuck, plsss help ASAPP!!! :))

Mathematics
1 answer:
Bogdan [553]3 years ago
7 0

Answer:

15 units

Step-by-step explanation:

d \:  =  \sqrt{(x2 - x1) ^{2}  + (y2 - y1) ^{2} }

d = 14.866

d = 15

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221

Step-by-step explanation:

area= length times width

13 times 17= 221

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Ramon earns $1,665 each month and pays $53.20 on electricity. To the nearest tenth of a percent, what
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You need to add
Tell me what you think it is and I will help you
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The sum of a number and 15 is 63 find the number​
tatuchka [14]

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x+15=63\\x=48

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Read 2 more answers
A national survey showed that 44% of college students drink. A professor provided his own survey by choosing a random sample of
mamaluj [8]

Answer:

It is an unusual result contradicting the national survey.

Step-by-step explanation:

National survey showed 44% of college students who drink.

The professor's survey showed that 96/244 = 39% drink.

The professor's survey deviated from the national survey is 5% (44% - 39%) representing about 0.25% (5% squared) variance.

Standard deviation is the spread of a set of numbers from their mean.  In other words, it measures how far an observed value is from the mean. It can be calculated by getting the square root of the variance.

4 0
3 years ago
A rectangular parking lot has a perimeter of 820 ft. The area of the parking lot measure SL 42,000 ft
horsena [70]

Answer:

a= 200

b = 210

Step-by-step explanation:

My assumption is, we have to find the length of sides of rectangle

Given

perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)

area = a*b = 42,000 ft^2 (ii)

from eq (1)

2a + 2b = 820

=> 2(a+b) = 820

=> a+b = 820/2

=> a + b = 410

=> a = 410-b   (iii)

putting the value of a in eq(ii), we get

(410-b) *b = 42,000

410b - b^2 = 42,000

0 = b^2 - 410b + 42000

b^2 - 410b + 42000 = 0

b^2- 200b- 210b + 42000 = 0

b(b-200)-210(b-200) = 0

(b-200)(b-210) = 0

or

b= 210 and b = 200

if b is larger side than b =210

By putting value of b in eq(iii),

a = 410 -210 = 200

 

6 0
3 years ago
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