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Delicious77 [7]
3 years ago
7

If you give an answer, could u do it in fraction form please? :)

Mathematics
1 answer:
leonid [27]3 years ago
6 0
Hi so the answer is 23 minutes and 15 seconds or 23 1/4

2 minutes and 30 seconds times three (to create a whole mile) is 7 minutes and 30 seconds
7 minutes and 30 seconds times or 7.5 times 3.1 = 23.25 which means 23 minutes/whole numbers
.25=1/4 or 15 seconds
hope this helps :)
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Find the slope and y-intercept of -x + 2y = 3. I need help on working this problem out​
natita [175]

Answer:

So the slope of this function is \frac{1}{2} and the y-intercept is \frac{3}{2}

Step-by-step explanation:

A first order function has the following format:

y = ax + b

In which a is the slope and b is the y-intercept, that is, the value of y when x = 0.

We have the following equation:

-x + 2y = 3

We just have to rewrite this equation

2y = x + 3

y = \frac{x+3}{2}

y = \frac{x}{2} + \frac{3}{2}

Which means that

a = \frac{1}{2}, b = \frac{3}{2}

So the slope of this function is \frac{1}{2} and the y-intercept is \frac{3}{2}

6 0
3 years ago
Name the angle pairs that are vertical angles
ss7ja [257]

Answer:

B & C

Step-by-step explanation:

They are angles that are on the opposite side of the X, therefore having the same angle degree

8 0
2 years ago
Grace swam 0.6 kilometers during her first week of training and 0.25 kilometers during her second week of training. How many kil
mr_godi [17]

Answer:

she will cover a distance of 0.85 km.

Step-by-step explanation:

We have,

Grace swam 0.6 kilometres during her first week of training and 0.25 kilometres during her second week of training.

It is required to find total distance covered by her in all.

It can be calculated simply adding the distance covered in first and second week of training. So,

Total distance, D = 0.6 km +0.25 km = 0.85 km

Hence, she will cover a distance of 0.85 km.

3 0
3 years ago
Assume that the poisson distribution applies and that the mean number of hurricanes in a certain area is 7.2 per year.
SCORPION-xisa [38]
Part A:

The poisson distribution is given by 

P(x;\mu)=e^{-\mu}\cdot \frac{\mu^x}{x!}

Thus, given that <span>the mean number of hurricanes in a certain area is 7.2 per year.

The </span><span>probability​ that, in a​ year, there will be 6 hurricanes is given by

</span>P(6;7.2)=e^{-7.2}\cdot \frac{7.2^6}{6!} \\ \\ =0.000747\times \frac{139314.0695}{720} \\ \\ =0.000747\times193.492 \\ \\ =0.1445


Part B:

<span>In a 45​-year ​period, the number of years that are expected to have 6 ​hurricanes is given by 0.1445 x 45 = 6.5 years.


Part C:

The poisson distribution worked here because, the observed value of the number of years that hurricanes occurred in a 45 year period which is 6 is very close to the calculated value which is 6.5</span>
4 0
4 years ago
Need help plz show work!
andrezito [222]
1 chair = X
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1 table = Y

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3 years ago
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