Will give the brains of me brains and my brains and maby ur brain to u how many brains can i give u if u ask this quetion right?

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Explanation:

The weird or fancy looking E symbol is the greek uppercase letter sigma. It is effectively the english version of S to represent summation. So we add up all the [tex](x-\overline{x})^2[/tex] terms to get this. Luckily this has already been done for us in the table where they wrote "sum = 34", so [tex]\sum(x-\overline{x})^2 = 34[/tex]

From here, we substitute this into the formula, along with n = 5 since there are 5 items in the original list

So,

[tex]s = \sqrt{\frac{1}{n-1}\sum(x-\overline{x})^2} \\\\s = \sqrt{\frac{1}{5-1}*34} \\\\s = \sqrt{\frac{1}{4}*34} \\\\s = \sqrt{0.25*34} \\\\s = \sqrt{8.5} \\\\s \approx 2.91547594742266 \\\\s \approx 2.9 \\\\[/tex]

This computes the sample standard deviation. To get the population standard deviation, you'd basically change the "n-1" to simply "n", and the rest of the formula is identical.

Answer:

2

Step-by-step explanation:

We want to find the value of p/2 - 5 when p = 14.

Simply put 14 in the place of p and solve:

14/2 - 5

7 - 5 = 2

The value of 2.

Answer:

Dimensions:

x = 130 cm

y = 10 cm

Step-by-step explanation:

Let´s call "x" and "d" sides of the cardboard rectangle x > y

then we have to cut along x three pieces of y length to get three squares of sides "y".

We have two squares of side y, the third one we cut in half and get two rectangles with sides y  and y/2, we cut to get 4 squares with sides y/2 then so far we have

2 large squares     ( side y )

4 medium squares (side y/2)  we just need three

We need to cut the available square side y/2  in 4 to get y/4 squares

Finally, we need y/4 length to get the fifth  y/4 square

Then dimensions of the cardboard

x       and   y

We cut 3 times at  "y" length and  need additional 10 cm

Then the side y/4 is equal to 10 cm then y = 40 cm

and  x = 3*y + y/4

x = 3*40 + 10 = 130 cm

Answer:

CB = 3.6 cm

Step-by-step explanation:

Here, triangle ABC is rotated about point X which results in triangle EFD. Since triangle ABC is rotated it retains its shape and dimensions. This means that triangle ABC is parallel to triangle EFD ie, ABC≈EFD, also both dimensions will be congruent.

Thus

AB = EF

BC = FD

AC = ED

CB = DF

BA = FE

CA = DE

Since length of side DF = length of side CB, and DF = 3.6 cm. Therefore, CB = DF = 3.6 cm

Length of CB = 3.6 cm

Answer: B it's B

Step-by-step explanation: I got it right

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Work Shown:

A = area of black square

A = 2*2

A = 4

B = area of white symbol

B = (1/3)*A

B = (1/3)*4

B = 4/3

C = total area

C = 4*2

C = 8

Divide the values of B and C to find the fraction of the total area the white symbol covers up.

B/C = (4/3)/8

B/C = (4/3) / (8/1)

B/C = (4/3) divided by (8/1)

B/C = (4/3) times (1/8)

B/C = (4*1)/(3*8)

B/C = 4/24

B/C = 1/6

Answer:

∠8 is 400°

Step-by-step explanation

50 x  8 = 400

that means that the measure of ∠8 is 400°

Answer:

130 degrees I got it correct trust me

Answer:

y = $40 - ($3/day)x

Step-by-step explanation:

y = $40 - ($3/day)x represents the amount of money John has left after x days.

Step-by-step explanation:

[tex]75- caps ----------- 1 minute\\3000 caps ------------x - minutes\\\\Cross-Multiply\\75x = 3000 \times 1\\75x = 3000\\\frac{75}{75} =\frac{3000}{75} \\\\x = 40 minutes[/tex]

Answer:

A: Angle J

Step-by-step explanation

If the two triangles are congruent then their corresponding angles are also congruent. This means that angle P is congruent to angle J, angle Q is congruent to angle K and angle R is congruent to angle L. Hope this helps :D

Step-by-step explanation:

the answer to your question is

6+4x=d

The expression that gives the number of donuts Andrea ate, represented by "a," can be written as: a = 4d + 6

Let's break down the information given:

1. Let "d" represent the number of donuts Helen ate.

2. Andrea ate six more than four times the number of donuts that Helen ate.

To find the expression that gives the number of donuts Andrea ate, we can use the information provided in point 2.

Four times the number of donuts Helen ate can be expressed as 4d.

Andrea ate six more than four times the number of donuts Helen ate, which can be represented as 4d + 6.

Therefore, the expression that gives the number of donuts that Andrea ate is 4d + 6.

To know more about expression, refer here:

https://brainly.com/question/17820513

#SPJ2

Answer:

C. 1/√2

Step-by-step explanation:

cos∅ is adjacent over hypotenuse:

cos45° = 1/√2

cos45° = √2/2

Alternatively, if you learned and memorized your unit circle, cos(π/2) = √2/2

Answer:

C.

Step-by-step explanation:

Answer:

Solution,

Let the points be A and B.

A(-2,3)---->(X1,y1)

B(-5,6)---->(x2,y2)

Now,

[tex] \frac{y2 - y1}{x2 - x1} \\ = \frac{6 - 3}{ - 5 - ( - 2)} \\ = \frac{3}{ - 5 + 2} \\ = \frac{3}{ - 3} \\ = - 1[/tex]

Hope this helps..

Good luck on your assignment..

Answer:

Step-by-step explanation:

Answer: a simple interest rate of 3.2% will be the better deal.

Step-by-step explanation:

Hi, to answer this question we have to apply the compounded interest formula:  

A = P (1 + r/n) nt  

Where:  

A = Future value of investment (principal + interest)  

P = Principal Amount  

r = Nominal Interest Rate (decimal form, 3/100= 0.03)  

n= number of compounding periods in each year (1)  

Replacing with the values given  

A = 7000 (1+0.03/1)^(1x5)

A = 7000( 1.03)^5 = $8,114.92

For simple interest:

I = p x r x t  

Where:  

I = interest  

Replacing with the values given:

I = 7000 x (3.2/100) x 5 = $1,120

Adding the principal amount: 7000+1120 = $8,120

Since 8,120 (simple) >8,114.92(compound)

a simple interest rate of 3.2% will be the better deal.

Answer:

11.5

Step-by-step explanation:

the mean of a set of numbers is the sum divided by the number of terms

(15+4+6+12+16+20+16+3)/8

The required mean of the data for the sample of Dr. Frank's dentist office is  11.5.

Given that,
The number of patients treated at Dr. Frank's dentist's office each day was recorded for eight days: 15, 4, 6, 12, 16, 20, 16, 3. Using the given data, find the mean for this sample is to be determined.

The average of the values is the ratio of the total sum of values to the number of values.

Here,
The number of patients treated was recorded for eight days,
Sample space =  15, 4, 6, 12, 16, 20, 16, 3
n(s) = 8
Mean = (15 + 4 + 6 + 16 + 20 + 16 + 3) / 8
Mean = 92 / 8
Mean = 11.5

The required mean of the data for the sample of Dr. Frank's dentist office is  11.5.

Learn more about average here:

brainly.com/question/24057012

#SPJ2

Answer:

(8!+6!.3!)

=6!(8×7+6)

=720(56+6)

=720(62)

=720×62

=44640

 The greatest common factor is the biggest number that divides evenly into each one of the numbers without a remainder...the only thing that's different about our situation is that we have variables in addition to regular number (but the same logic applies...we need to find the biggest variable that goes into k^4 , k^3 , and k^2 ).

The biggest number that goes into 15, 35 and 20 is the number 5. The biggest variable that goes into k^4 , k^3 , and k^2 is k^2

Combining the number and the variable, we get that the greatest common monomial factor is 5k^2

Since area is length x width, and we just figured out that width is 5k2 , all we have to do to find length is divide 15k4+35k3+20k2 by 5k2 , and we get that the length is 3k^2+7k+4

So the width is 5k^2 and the length is 3k2+7k+4

:))

-Eli

Answer:

Step-by-step explanation:

The ladder forms a right angle triangle with the wall. The straight line distance from the bottom of the window to the ground forms the opposite side. The distance from the bottom of the ladder to the house represents the adjacent side. To determine the required length of the wire, c, we would Pythagorean theorem which us expressed as

Hypotenuse² = opposite side² + adjacent side²

Therefore,

c² = 6² + 5² = 36 + 25 = 61

c = √61 = 7.81 ft

Answer:

B. -6

Step-by-step explanation:

The common difference here is the difference between each term. Since it is an arithmetic sequence the difference between each term will be the same value.

So, from 45 (the 1st term) to 39 (the 2nd term), the difference is -6

From 39(the 2nd term) to 33, the difference is also -6.

Therefore, we know that the common difference fro this arithmetic sequence is -6.

Hope this helps and ask me any question if it does not :)

Answer:

-6.

Step-by-step explanation:

39 - 45 = -6

33 - 39 = -6

27 - 33 = -6

21 - 27 = -6.

Answer:

106,107,108,109,110

Step-by-step explanation:

The external angles of any regular shape add up to 360.  Thus, each internal angle of a pentagon = 540. 540/5= 108

Then simply add and subtract one twice to get a number set of 106,107,108,109,110

Answer:

Step-by-step explanation:

33

j

j

j

j

j

j

j

j

j

j

j

j

j

j

j

j

j

Answer:

Hey there!

We have sine xyz=6/15

sine xyz=0.4

arc sine 0.4=xyz

xyz=23.6

Hope this helps :)

Answer:

You could approximate pi to be 3.14, and divide that by 6.

Step-by-step explanation:

Answer:

30 degrees

Step-by-step explanation:

If π/6 is an angle in radians

So, Converting it into degrees will make :

=> π/6 * 180 => 30 degrees

Answer:

The answer is A.

Step-by-step explanation:

The inequality states that the amount that Yvonne drives is more than 540 miles.  Since h represents the number of hours, we know that 69 probably means the number of miles Yvonne can drive per hour.  Finally, 126 shows the amount of miles that Yvonne has already driven.

Answer:

704 pi in ^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h where r is the radius and h is the height

V = pi ( 8)^2 * 11

V = pi (704)

V = 704 pi in ^3

Answer:

Step-by-step explanation:

Solution,

Radius(R)= 8 in.

Height (h)= 11 in.

Volume of cylinder=?

Now,

Volume of cylinder:

[tex]\pi {r}^{2} h[/tex]

[tex]\pi \: {(8)}^{2} \times 11 [/tex]

[tex]\pi \times 64 \times 11[/tex]

[tex]704\pi \: {inches}^{3} [/tex]

Hope this helps...

Good luck on your assignment..

Answer: z=4

Step-by-step explanation:

4z+12=28

-12 on both sides

28-12=16

4z=16

divide 4 on both sides

z=4

Answer:

z=4

Step-by-step explanation:

4z+12=28

Subtract 12 from each side

4z+12-12=28-12

4z = 16

Divide each side by 4

4z/4 = 16/4

z = 4

Answer:

-8

Step-by-step explanation:

Hope it helps you.

Can you mark my answer as a Brainliest Please

Answer:

[tex]Standard\ Form = {3n^2} m^{-2}[/tex]

Step-by-step explanation:

Given

[tex]\frac{2}{3m^2n} * 4.5n^3[/tex]

Required

Write in Standard Form

To start with; the two monomials have to be multiplied together;

[tex]\frac{2}{3m^2n} * 4.5n^3[/tex]

[tex]Standard\ Form = \frac{2 * 4.5n^3}{3m^2n}[/tex]

Split the numerator and the denominator

[tex]Standard\ Form = \frac{2 * 4.5 * n^3}{3 * m^2 * n}[/tex]

Multiply Like terms

[tex]Standard\ Form = \frac{9 * n^3}{3 * m^2 * n}[/tex]

Divide 9 by 3 to give 3

[tex]Standard\ Form = \frac{3 * n^3}{m^2 * n}[/tex]

Divide n³ by n to n²

[tex]Standard\ Form = \frac{3 * n^2}{m^2 }[/tex]

Split fraction

[tex]Standard\ Form = {3 * n^2} * \frac{1}{m^2 }[/tex]

From laws of indices;

[tex]\frac{1}{a^n} = a^{-n}[/tex]

[tex]Standard\ Form = {3 * n^2} * \frac{1}{m^2 }[/tex] becomes

[tex]Standard\ Form = {3 * n^2} * m^{-2}[/tex]

Multiply all together

[tex]Standard\ Form = {3n^2} m^{-2}[/tex]

Answer:

Formula: a² + 2ab + b² = (a + b)²

The square root of 1/9x² = 1/3x so a = 1/3x and b = 1/5y.

The answer is (1/3x + 1/5y)².

Answer:

6 months

Step-by-step explanation:

Gym1

12 + 20m

Gym2

22m

Set them equal

12 +20m = 22m

Subtract 20 m from each side

12 +20m-20m = 22m-20m

12 = 2m

Divide by 2

12/2 = 2m/2

6 =m