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Tpy6a [65]
3 years ago
15

Find the mean, variance, and standard deviation for the data set8 14 14 16 13​

Mathematics
1 answer:
RSB [31]3 years ago
6 0

Answer:

58.6.....................

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The radius of circle A is three feet less than twice the diameter of circle B. If the sun mmm of the diameters of both circles i
yanalaym [24]

Answer:

Area of Circle A = 1133.54

Circumference of Circle A= 119.32

Step-by-step explanation:

Given: Sum of both circle diameters= 49 feet.

           Circle A radius= Three feet less than twice the diameter of circle B.

Lets assume diameter of Circle B is "x"

∴ Circle A radius (r)= (2x-3)

We know, the diameter of circle is 2r

Diameter of Circle A is 2\times (2x-3)

Next as given sum of both circle diameter is 49 feet.

∴ 2(2x-3)+x= 49\ feet

distributing 2 with 2x and -3

⇒ 4x-6+x= 49

⇒5x-6= 49

Adding both side by 6

⇒5x=55

Cross multiplying both side.

⇒x=\frac{55}{5} = 11

∴ Diameter of circle B is 11 feet.

Next, subtituting the value of x to get the value of radius for Circle A.

Radius of circle A= (2x-3)

⇒ Radius of circle A= (2\times 11-3)= 22-3

∴ Radius of circle A= 19 feet.

Area of circle= \pi r^{2}

Taking π= 3.14

Area of circle A= 3.14\times 19^{2} = 3.14\times 361

∴ Area of circle A= 1133.54

Circumference of circle= 2πr

Circumference of Circle A= 2\times 3.14\times 19= 119.32

∴ Circumference of Circle A= 119.32

3 0
3 years ago
Read 2 more answers
Simplify: 4w(to the power of 9)+(-2w(to the power of 9)) enter the original expression if it cannot be simplified
igomit [66]
4w⁹ -2w⁹
= (4-2)w⁹ . . . . . distributive property, or "collecting terms"
= 2w⁹

_____
In plain text, a caret (^) is used to identify an exponent. w⁹ = w^9. If the exponent has any arithmetic, you need parentheses around it. w^(8+1)
6 0
3 years ago
What effect does doubling the radius of a cylinder have on the volume of the cylinder?
BabaBlast [244]
Doubling the radius of the cylinder will quadruple the volume.
3 0
3 years ago
5 divided by 465 please give the answer
Andreas93 [3]

Answer:

0.11111....

Step-by-step explanation:

. ......... .....

wait I was wrong

8 0
3 years ago
5x+3(x-1) = 8(x + 2) - 10
Levart [38]

Answer:

9

Step-by-step explanation:

5x+3x-3= 8x+16-10

5x+3x-8x=16-10+3

8x-8x=9

= 9

5 0
2 years ago
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