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Karolina [17]
10 months ago
12

Pls help with math. :(

Mathematics
2 answers:
Karolina [17]10 months ago
8 0

Answer:

Tom will run 9 miles in 12 minutes.  

Step-by-step explanation:

             

VMariaS [17]10 months ago
5 0

Answer:

I would say 9 miles

Step-by-step explanation:

He would have to be HAULING it to run 6 miles in 8 minutes lol.

But, I think it's 9 miles

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You can’t? I mean like adding 100 at a time or-
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3 years ago
What are the types of roots of the equation below?
algol13

Step-by-step explanation:

what is the meaning of ^ this sign

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2 years ago
Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.5 parts
Hunter-Best [27]

Answer:

The value of the test statistic is t = 2.1

Step-by-step explanation:

Our test statistic is:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the expected value, \sigma is the standard deviation and n is the size of the sample.

The level of ozone normally found is 7.5 parts/million (ppm).

This means that \mu = 7.5

The mean of 24 samples is 7.8 ppm with a standard deviation of 0.7.

This means that X = 7.8, \sigma = 0.7, n = 24

Test Statistic:

t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

t = \frac{7.8 - 7.5}{\frac{0.7}{\sqrt{24}}}

t = 2.1

The value of the test statistic is t = 2.1

7 0
3 years ago
It describes itself <3
irina [24]

Answer:

432 ft²

Step-by-step explanation:

The formula of finding the area of a trapezoid: (base 1 + base 2/ 2) x h

(base 1 + base 2/ 2) x h

= (20 + 28/2) x 18

= 24 x 18

= 432 ft²

3 0
3 years ago
Given that<br> x:8=2:x<br> Calculate the positive value of x.
kow [346]

Answer:

x = 4

Step-by-step explanation:

x : 8 = 2 : x \\  \frac{x}{8}  =  \frac{2}{x}  \\  \\ cross \:  \: multiple \\  {x}^{2}  = 16 \\ x =  \sqrt{16}  \\ x = 4

4 0
3 years ago
Read 2 more answers
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