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3 years ago

The scale of a map is 3 ft = 84 miles Map:4.5 Actual-

Mathematics

1 answer:

Alinara [238K]3 years ago

6 0

Answer:

0.0022369362920544 mile

Step-by-step explanation:

Convert 3.6 Meters to Miles (m to mile) with our conversion calculator and conversion tables. To convert 3.6 m to mile use direct conversion formula below.

3.6 m = 0.0022369362920544 mile.

You also can convert 3.6 Meters to other Length (popular) units.

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Find an order pair (x,y) that is a solution to the equation <br> X-4y=4

QveST [7]

Answer:

(0,-1)

You can guess and check to see what gives you the answer

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3 years ago

Johns birthday party budget is 119.00. He spent 45.50 for sandwiches,26.25 for juice and,15.25 for prizes.how much money is left

Alik [6]

Simply subtract all the spent money from his budget:

$119-$45.50-$26.25-$15.25= $32

Therefore, he has $32 left for other expenses!

Hope this helps!

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3 years ago

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Shkiper50 [21]

Hi there!

Pauline simplified the expression correctly.

Pauline made sure she used the distributive property and combined like terms after doing so.

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3 years ago

Please help me

lisabon 2012 [21]

Answer:

Step-by-step explanation:

3+2x = 4x-7

3+7=4x-2x

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2 years ago

Read 2 more answers

The water diet requires you to drink two cups of water every half hour from the time you get up until you go to bed, but otherwi

Elan Coil [88]

Answer:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

Step-by-step explanation:

For this case we have the following info given:

Weight before diet 180 125 240 150

Weight after diet 170 130 215 152

We define the random variable $D = before-after$ and we can calculate the inidividual values:

D: 10, -5, 25, -2

And we can calculate the mean with this formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And the deviation with:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i- \bar X)^2}{n-1}}$

And after replace we got:

$\bar D= 7, s_d = 13.638$

And the confidence interval for this case would be given by:

$\bar D \pm t_{\alpha/2} \frac{s_d}{\sqrt{n}}$

The degrees of freedom are given by:

$df = n-1= 4-1=3$

For the 95% of confidence the value for the significance is $\alpha=0.05$ and the critical value would be $t_{\alpha/2}= 3.182$ . And replacing we got:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

6 0

3 years ago