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Bumek [7]
2 years ago
8

Use a calculator to find the mean of the data. {217, 230, 214, 227, 196, 235, 220, 224, 208, 209, 191, 205, 184, 214, 219, 208,

227, 194, 228, 186, 201, 239}
Mathematics
1 answer:
Lesechka [4]2 years ago
7 0
The mean of this data is 212.5454 repeating.

To find the mean you need to find the average and to do that you need to add all values and divide by the number of values. When you add all of those numbers, you get 4676. There are 22 values so you would divide 4676 by 22. This answer is 212.5454 repeating.
You might be interested in
Find the equation in stope intercept form of the line that passes through the points (-2,4) and (6,2),
Juli2301 [7.4K]

Answer:

y = -x/4 + 7/2

Step-by-step explanation:

Find the slope

( -2 , 4) ( 6 , 2)

m = (y2 - y1)/(x2 - x1)

x1 = -2

y1 = 4

x2 = 6

y2 = 2

m = ( 2 - 4)/( 6 -(-2)

m = ( 2 -4)/(6 +2)

= -2/8

= -1/4

Using point slope form equation

y - y1 = m( x - x1)

Using the second point

( 6 , 2)

x1= 6

y1=2

m = -1/4

y - 2 = -1/4(x - 6)

y - 2 = -(x - 6)/4

Open the bracket with -

y - 2 = (-x + 6)/4

y = ( -x + 6)/4 + 2

LCM = 4

y =( -x + 6 + 8)/4

y = (-x + 14)/4

Rearrange using slope intercept form

y = mx + c.

y = -x/4 + 14/4

We can break 14/4 by dividing by 2

y = -x/4 + 7/2

8 0
4 years ago
I need a lot of help with practice problems, I am not understanding math right now. Please help!!!!!! Will give brainliest!!
34kurt

Answer:

1. 18 (sqrt21 - sqrt2a)

2. 3

3. x^m/n

4. (5x^4√10)/(√2x)

5. x = -2 or -6

6. x = 30

Step-by-step explanation:

Number 1

3^3sqrt21 - 6^3sqrt2a

3 * 6 * sqrt21 - sqrt2a

18 (sqrt21 - sqrt2a)

Number 2

3^1/2 * 3^1/2 =

3^1/2+1/2 =

3^1 =

3

Number 3

^nsqrtx^m =

x^m/n

Number 4

(√250x^16)/(√2x) =

(√25 * 10 * x^16)/√(2x )=

(5x^4√10)/(√2x)

Number 5

√2x + 13 - 5 = x

√2x + 13 = x + 5

square both side to take away the sqrt sign

(√2x + 13)^2 = (x + 5)^2

expand the equation on the RHS

2x + 13 = x(x+5) + 5(x+5)

2x+13 = x^2 + 10x +25

substract 13 from both sides

2x = x^s + 10x +12

subtract 2x from both sides

0 = x^2 +8x + 12

Factorize equation

x^2 + 6x +2x + 12 = 0

x(x+6) + 2(x+6) = 0

(x+2)(x+6) = 0

x = -2 or -6

Number 6

3 ^5sqrt(x+2)^3 + 3 = 27

subtract 3 from both sides

3 ^5sqrt(x+2)^3  = 27 - 3

3 ^5sqrt(x+2)^3  = 24

divide through by 3

^5sqrt(x+2)^3  = 8

square both sides by 5 to take away the 5th root sign

(x+2)^3  = (8)^5

(x+2)^3  = 32,768

take the cube root of both sides to take away the ^3

x+2 = ^3sqrt 32,768

x+2 = 32

x = 32 - 2

x = 30

3 0
4 years ago
Read 2 more answers
What does it mean by n? thanks
ra1l [238]
When you solve the inequality, you will write down all the x values that satisfy the inequality but they have to be integers. The n is x, it is just a common variable used to help describe what kind of numbers they want.
3 0
3 years ago
Mrs.sipp has 4.6 l of lemonade to serve her son's birthday guests. About how many millimeters should she pour into each glass?
vlabodo [156]
1 litre = 1000 ml
4.6 litre = 4600 ml

4600 / people = how much she should pour into each glass
5 0
3 years ago
What is the perpendicular height of an oblique prism with a volume of 144 cubic units and an area of 24 square units
givi [52]

Answer:

Height of the oblique prism is 18 units.

Step-by-step explanation:

Volume of an oblique prism = \frac{1}{3}(\text{Area of the base})(\text{Perpendicular height})

Area of the base of this prism = 24 square units

And volume of the prism = 144 cubic units

By substituting these values in the formula,

144 = \frac{1}{3}(24)(h)

h = \frac{144\times 3}{24}

h = \frac{432}{24}

h = 18 units

Therefore, height of the oblique prism is 18 units.                                            

4 0
4 years ago
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