find the value of given expression

[tex] \sqrt{25 \times 2} \times \sqrt{50} [/tex]
​

Answer:

Them chips are crispy because if the crisp is in the chips then the chips are crispy

Question

The data in this question will be utilized for the next three questions. The number of pets a group of students has, are given below.

Number of pets:        0-2    2-4   4-6   6-8   8-10   10-12    12-14

Number of students:  1        2      1        5       6         2           3

Calculate

(1) Mean      (2) Sample Variance    (3) Sample Standard Deviation

Answer:

[tex](1)[/tex] [tex]\bar x = 8.1[/tex]

[tex](2)[/tex] [tex]\sigma^2 = 6.341[/tex]

[tex](3)[/tex] [tex]\sigma = 2.518[/tex]

Step-by-step explanation:

Given

The above data

First, we calculate the class midpoint (x)

Pets:  [tex]0-2[/tex]    [tex]2-4[/tex]   [tex]4-6[/tex]   [tex]6-8[/tex]   [tex]8-10[/tex]   [tex]10-12[/tex]    [tex]12-14[/tex]

x           1           3          5       7           9          11          13

f:           1            2         1        5           6         2           3

The class midpoint (x) is calculated by the average of each group.

For pets: 0 - 2.

[tex]x = \frac{0 + 2}{2}= \frac{2}{2} = 1[/tex]

The same is done for other groups.

Solving (a): Mean

[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]

This gives:

[tex]\bar x = \frac{1 * 1 + 3 * 2 + 5 * 1 + 7 * 5 + 9 * 6 + 11 * 2 + 13 * 3}{1 + 2 + 1 + 5 + 6 + 2 + 3}[/tex]

[tex]\bar x = \frac{162}{20}[/tex]

[tex]\bar x = 8.1[/tex]

Solving (b): Sample Variance

This is calculated as:

[tex]\sigma^2 = \frac{\sum(x_i - \bar x)^2}{\sum f - 1}[/tex]

So:

[tex]\sigma^2 = \frac{(1 - 8.1)^2+(3 - 8.1)^2+(5 - 8.1)^2+(7 - 8.1)^2+(9 - 8.1)^2+(11 - 8.1)^2+(13 - 8.1)^2}{20 - 1}[/tex]

[tex]\sigma^2 = \frac{120.47}{19}[/tex]

[tex]\sigma^2 = 6.341[/tex]

Solving (c): The sample standard deviation

This is calculated as:

[tex]\sigma = \sqrt{\sigma^2[/tex]

[tex]\sigma = \sqrt{6.341[/tex]

[tex]\sigma = 2.518[/tex]

Using the dilation rule, the length of P'R' is: C. 12 units.

Given that the scale factor of dilation is 4, and PR is 3.

Therefore:

P'R' = 4(PR)

P'R' = 4(3)

P'R' = 12 units.

Therefore, using the dilation rule, the length of P'R' is: C. 12 units.

Learn more about dilation on:

https://brainly.com/question/10253650

Answer:

Its c (12)

Step-by-step explanation:

Edge

Answer:

it can be taken like this

5 y^2/2= 2.5 y^2

Answer:

Step-by-step explanation:

Answer:

range: {-4,0,12,20}

Step-by-step explanation:

these values are the y-values for the specific four domain values given

Answer:

Step-by-step explanation:

Answer:

1. 3^7/3^2

=3^(7-2)

=3^5

Now 3^5*3^5

=3^(5+5)

=3^10

2. (2^2)^3

=2^(2*3)

=2^6

(2^6)*(3^6)*(5^6)

Step-by-step explanation:

Hope this helps <3

If you like my answer pls brainly

Answer:

11.6 per ticket

Step-by-step explanation:

All you do is 46.40 divided by 4 and you get 11.6.

Answer:

angle BED and angle DEB are the answers.

Step-by-step explanation:

answer: a) both x are 16, it is an equalatrial triangle

b) (mark as the brainliest and i"ll give you the answer

Answer:

22

Step-by-step explanation:

You can use division because the angles are the same:

From the first one to the second you divide by 2

16/2=8

So that means x/2=11

So x=22

Answer:

Step-by-step explanation:

95 850-9 580=86270

R 86 270 is still owed for the car

Hope it helps!

:D

Answer:

b.

Step-by-step explanation:

Answer:

y= -2x+1

Step-by-step explanation:

i hope this helps :)

Answer:

x = -12

Step-by-step explanation:

3/4x + 12 = 3

3/4x = -9

3x = -36

x = -12

Step-by-step explanation:

Circumference=22π

2πr=22π

r=11 in.

Area=121π in.²

Hope it helps you

Answer:

multiply that what my teacher said do

Step-by-step explanation:

19.31

19.30+0.001 = 19.31

Answer:

x = 9

Step-by-step explanation:

Given

2(x + 5) = 3x + 1 ← distribute left side

2x + 10 = 3x + 1 ( subtract 2x from both sides )

10 = x + 1 ( subtract 1 from both sides )

9 = x

Answer:

5

Step-by-step explanation:

You will need the distance formula. [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}\\[/tex]

([tex]x_{1}[/tex], [tex]y_{1}[/tex]) ([tex]x_{2}[/tex], [tex]y_{2}[/tex])

Now plug in the two points into the distance formula.

d= [tex]\sqrt{(2-6)^{2}+(1-4)^{2} }[/tex]

d= 5

Answer:

C.  -1.7

Step-by-step explanation:

Answer:

5)B 6)A 7)C are the answers I believe.

Answer:

sin A = [tex]\frac{15}{17}[/tex]

cos A = [tex]\frac{8}{17}[/tex]

tan A = [tex]1\frac{7}{8}[/tex]

Step-by-step explanation:

sine = [tex]\frac{ooposite}{hypothenuse}[/tex]

sine A = [tex]\frac{15}{17}[/tex]

cosine = [tex]\frac{adjacent}{hypothenuse}[/tex]

cos A = [tex]\frac{8}{17}[/tex]

tan = [tex]\frac{opposite}{adjacent}[/tex]

tan A = [tex]\frac{15}{8} = 1\frac{7}{8}[/tex]

Answer:

10,000

Step-by-step explanation:

500/0.05= 10,000

You take the amount you are given divided by the decimal form of the percentage you are given to find the answer.  It's a reverse from the way you find 5% of 10,000.

0.05=5%

Check your work: 10,000*5%= 500

Answer:

hey, the answer is D 443.73

Step-by-step explanation: