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3 years ago

PLEASE HELP!!!!!! 10 POINTS

1 answer:

3 0

you need to find the mean on these numbers that is step one in finding standard deviation. so this is 44.2. now you need to subtract the mean from each number and square the result. after that step you now have these numbers.... 3.24, 139.24, .64, .4,.64,282.24,116.64,77.44,27.04. now the next step is to find the mean of these numbers. you get 71.9 appx.. now all you do is square root this number you get 8.5 when you round to the nearest thenth

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I’ll mark brainly answer pls

Schach [20]

Answer:

x = 8 inches

Step-by-step explanation:

The following is the formula for the area of a kite.

$A = \frac{xy}{2}$

We plug in out known values.

A = 60

y = 15

$60 = \frac{x(15)}{2}$

Now we solve for x!

$120 = x15$

$x = 8$

Hope this helped! :)

7 0

3 years ago

Read 2 more answers

FIND THE VALUE OF X AND Y PLEASE ILL GIVE YOU BRAINLEST

e-lub [12.9K]

Answer:

x = 10

y = 50

Step-by-step explanation:

9x - 70 = x + 10

8x - 70 = 10

8x = 80

x = 10

3y - 60 = 90

3y = 150

y = 50

4 0

3 years ago

Read 2 more answers

In the picture provided, right triangle ABC is drawn with a 72 degree angle. For right triangles with it an angle of 72 degrees

anygoal [31]

Answer:

105,3≈105

Step-by-step explanation:

sin 72°=19/20

sin 72°=100/x

x=(20*100)/19=105,3

x=BC

x- is hypotenuse

i calculated with calculator

6 0

3 years ago

Please I need help with this question.

OlgaM077 [116]

Answer:

It is 28 miles. It is much more simple than you are making it out to be in your head. Draw out the picture with 7 marks on a line. The first 3 marks were traveled Friday. After Friday, there are 4 marks left. On Saturday, 2 of those 4 remaining marks are traveled. On Sunday, the last two marks are traveled. The last two marks are 8 miles together, meaning that each mark is 4 miles a piece. Therefore, 7 times 8 is 28 miles.

Step-by-step explanation:

8 0

3 years ago

Rewrite the following polynomial in standard form. - 10 - 9x2 +x

Mademuasel [1]

Answer:

-9x² + x - 10

Step-by-step explanation:

To write in a standart form, variables go in an alphabetical order, from highest to lowest exponent. The last thing to write is a number by itself (ex. 10)

7 0

2 years ago