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4 years ago

PLEASE MATH HELP ( EASY )

Mathematics

2 answers:

r-ruslan [8.4K]4 years ago

5 0

Answer:

10I^2/3

Step-by-step explanation:

yKpoI14uk [10]4 years ago

3 0

10I^2/3

This is the answer

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Mark works at a clothing store and earns 20% commission on his total sales last month mark sold $1500 in closing total sales wha

padilas [110]

Answer:

$300

Step-by-step explanation:

I did have an explanation here but someone *cough* *cough* laurenercsp6fpli deleted all my answers for no reason. But I did the math and I assure you that the answer is $300.

3 0

3 years ago

The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 28

anzhelika [568]

Answer:

$Range = 281-256= 25$

In order to calculate the sample deviation we need to calculate the mean given by:

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

And replacing we got:

$\bar X= 265$

And the standard deviation can be calculated with this formula:

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

And replacing we got:

$s = 8.426$

Step-by-step explanation:

For this case we have the following data given:

281, 269, 259, 265, 256, 259, 266

The range is defined as:

$Range = Max -Min$

And if we replace we got:

$Range = 281-256= 25$

In order to calculate the sample deviation we need to calculate the mean given by:

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

And replacing we got:

$\bar X= 265$

And the standard deviation can be calculated with this formula"

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

And replacing we got:

$s = 8.426$

4 0

3 years ago

Plz answer 4-8 if possible, I have been struggling

Fed [463]

It’s -4 because when you take 4 out of 8 then you still have another 4 to take away to you go into the negatives and have the answer -4

6 0

3 years ago

Read 2 more answers

Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square r

steposvetlana [31]

Answer:

x equals plus or minus square root of 5 minus 1

Step-by-step explanation:

we have

$x^{2} +2x=4$

Divide by 2 the coefficient of the x-term

$2/2=1$

squared the number

$1^2=1$

Adds both sides

$x^{2} +2x+1=4+1$

$x^{2} +2x+1=5$

Rewrite as perfect squares

$(x+1)^{2}=5$

take the square root both sides

$x+1=(+/-)\sqrt{5}$

$x=(+/-)\sqrt{5}-1$

therefore

x equals plus or minus square root of 5 minus 1

4 0

3 years ago

Use a net to find the surface area of the cylinder. Use 3.14 for for pi.

AlladinOne [14]

Answer:

~150.79645 cm

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·5+2·π·32≈150.79645

5 0

3 years ago