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3 years ago

After a heavy rainstorm, Barbara's dog left muddy paw prints all over her back patio. She decided to rent an electric

Mathematics

2 answers:

Ne4ueva [31]3 years ago

5 0

Answer:41.00

Step-by-step explanation:

Nitella [24]3 years ago

3 0

Answer:

A.$15.00

Step-by-step explanation:

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Calculate the side of a square whose perimeter is 36m<br>Show working<br>Step by step explanation

Pie

Answer:

One side is 9 m

Step-by-step explanation:

Perimeter = 36 m

Perimeter = 4a

a = P/4

a = 36/4

a = 9

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3 years ago

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Once the boat is 2,500 feet away from the port, it is no longer your responsibility to track it. will the boat be 2,500 feet awa

sweet [91]

Answer:

Step-by-step explanation:

30*60=1800ft/minute

2500-1800=700

700/30=23.3333333333

60+23.3333333333=83.3333333333 seconds

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2 years ago

Write equations for the phrases.

tatyana61 [14]

Answer:

1/2n=34

5n=3/5

5-n=-6

n/3=9

t/3=34

Step-by-step explanation:

of=multiplication

times=multiplication

minus=subtraction

divided=division

quotient=answer to a division problem

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3 years ago

What is the maxium number of right angles that can be contained in a triangle

alekssr [168]

Answer:

Step-by-step explanation:

A triangle can only have one right angle.

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2 years ago

A health research institute collects information from 20 individuals on the number of years they have spent smoking cigarettes,

olga55 [171]

The correlation coefficient of the health research institute data measures the relationship between the age and the years of the smokers

The correlation coefficient is 0.53

<h3>How to calculate the correlation coefficient</h3>

The correlation coefficient (r) is calculated as:

$r = \frac{n(\sum xy) - \sum x \sum y}{\sqrt{[n \sum x^2 - (\sum x)^2][n\sum y^2 - (\sum y)^2}}$

Using the given parameters, we have:

$r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1257^2][20 * 836 - 116^2}}$

Evaluate the exponents

$r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1580049][20 * 836 - 13456}}$

Evaluate the products

$r = \frac{164980 - 145812}{\sqrt{[1976460 - 1580049][16720 - 13456}}$

Evaluate the differences

$r = \frac{19168}{\sqrt{[396411*3264}}$

Evaluate the product

$r = \frac{19168}{\sqrt{1293885504}}$

Evaluate the root

$r = \frac{19168}{35970.6}$

Evaluate the quotient

$r = 0.53$

Hence, the correlation coefficient is 0.53

Read more about correlation coefficient at:

brainly.com/question/1564293

8 0

2 years ago