the variance for the given data 18,20,18,2,7

Answers

Answer 1

Solution

Given 18,20,18,2,7

The variance formula is given as;

[tex]undefined[/tex]


Related Questions

what is 39 ÷ (2+ 1) - 2 × (4 + 1)

Answers

The given expression is

[tex]36\colon(2+1)-2\times(4+1)[/tex]

First, we solve the additions inside the parenthesis

[tex]36\colon3-2\times5[/tex]

Then, we solve the produce and the division

[tex]12-10[/tex]

At last, we subtract

[tex]12-10=2[/tex]Hence, the answer is 2.

this is factor by grouping. did I do 1a right and how do I continue on 1b

Answers

We will have the following:

*First: ( f ° g) (x):

[tex](f\circ g)(x)=\frac{(\frac{1}{x})+1}{(\frac{1}{x})-2}\Rightarrow(f\circ g)(x)=\frac{(\frac{1+x}{x})}{(\frac{1-2x}{x})}[/tex][tex]\Rightarrow(f\circ g)(x)=\frac{(1+x)(x)}{(x)(1-2x)}\Rightarrow(f\circ g)(x)=\frac{1+x}{1-2x}[/tex]

Domain:

[tex](-\infty,\frac{1}{2})\cup(\frac{1}{2},\infty)[/tex]

*Second: (f ° f) (x):

[tex](f\circ f)(x)=\frac{(\frac{x+1}{x-2})+1}{(\frac{x+1}{x-2})-2}\Rightarrow(f\circ f)(x)=\frac{(\frac{(x+1)+(x-2)}{x-2})}{(\frac{(x+1)-2(x-2)}{x-2})}[/tex][tex]\Rightarrow(f\circ f)(x)=\frac{(\frac{2x-1}{x-2})}{(\frac{-x+5}{x-2})}\Rightarrow(f\circ f)(x)=\frac{(2x-1)(x-2)}{(x-2)(-x+5)}[/tex][tex]\Rightarrow(f\circ f)(x)=\frac{2x-1}{-x+5}[/tex]

Domain:

[tex](-\infty,5)\cup(5,\infty)[/tex]

Triangles ABE, ADE, and CBE are shown on the coordinate grid, and all the vertices have coordinates that are integers. Which statement is true?

Answers

To check if Triangles ABE, ADE, and CBE are congruent, let us compute for the distance of each line using the Distance Formula,

[tex]\text{ }d\text{ = }\sqrt[]{(x_2-x_1)^2\text{ + (}y_2-y_1)^2}[/tex]

Where,

d = Distance

(x1, y1) = Coordinates of the first point

(x2, y2) = Coordinates of the second point

Let's compute the distance of the following lines:

Triangle ABE: Lines AB, AE, and BE

Triangle ADE: Lines AD, AE, and ED

Triangle CBE: Lines CE, CB, and BE

For Triangle ABE,

[tex]\text{ d}_{AB}\text{ = }\sqrt[]{(-1-(-4))^2+(3-(-1))^2}\text{ = }\sqrt[]{(-1+4)^2+(3+1)^2}[/tex][tex]\text{ d}_{AB}\text{ = }\sqrt[]{(3)^2+(4)^2}\text{ = }\sqrt[]{9+\text{ 16}}\text{ = }\sqrt[]{25}[/tex][tex]\text{ d}_{AB}\text{ = 5}[/tex][tex]\text{ d}_{AE}\text{ =}\sqrt[]{(1-\text{ }(-1))^2+(0\text{ - }(-4))^2}\text{ = }\sqrt[]{(1+1)^2+(0+4)^2}[/tex][tex]\text{ d}_{AE}\text{ = }\sqrt[]{(2)^2+(4)^2}\text{ = }\sqrt[]{4\text{ + 16}}[/tex][tex]\text{ d}_{AE}\text{ =}\sqrt[]{20}[/tex][tex]\text{ d}_{BE}\text{ = }\sqrt[]{(1\text{ - (}3))^2+(0\text{ - (-1)})^2}\text{ = }\sqrt[]{(1-3)^2+(0+1)^2}[/tex][tex]\text{ d}_{BE}=\text{ }\sqrt[]{(-2)^2+(1)^2}\text{ = }\sqrt[]{4\text{ + 1}}[/tex][tex]\text{ d}_{BE}\text{ = }\sqrt[]{5}[/tex]

For Triangle ADE, let's compute for the distance of line AD and ED since we already got the distance of line AE.

[tex]\text{ d}_{AD}\text{ = }\sqrt[]{(-1-(-1))^2+\text{ (}1\text{ - }(-4))^2}\text{ = }\sqrt[]{(-1+1)^2+(1+4)^2}[/tex][tex]\text{ d}_{AD}\text{ = }\sqrt[]{(0)^2+(5)^2}\text{ = }\sqrt[]{25}[/tex][tex]\text{ d}_{AD}\text{ = 5}[/tex][tex]\text{ d}_{ED}=\text{ }\sqrt[]{(-1\text{ - (}1))^2+(1-0)^2}\text{ = }\sqrt[]{(-1-1)^2+(1)^2}[/tex][tex]\text{ d}_{ED}\text{ = }\sqrt[]{(-2)^2_{}+(1)^2}\text{ = }\sqrt[]{4\text{ + 1}}[/tex][tex]\text{ d}_{ED}\text{ = }\sqrt[]{5}[/tex]

For Triangle CBE, let's compute for the distance of line CE and CB since we already got the distance of line BE.

[tex]\text{ d}_{CE}\text{ = }\sqrt[]{(3-\text{ }1)^2+(4-0)^2}\text{ = }\sqrt[]{(2)^2+(4)^2}[/tex][tex]\text{ d}_{CE}\text{ = }\sqrt[]{4+16}\text{ = }\sqrt[]{20}[/tex][tex]\text{ d}_{CE}\text{ = }\sqrt[]{20}[/tex][tex]\text{ d}_{CB}\text{ = }\sqrt[]{(3-3)^2+(4\text{ - (}-1))^2}\text{ =}\sqrt[]{(0)^2+(4+1)^2}[/tex][tex]\text{ d}_{CB}\text{ =}\sqrt[]{(5)^2}\text{ = }\sqrt[]{25}[/tex][tex]\text{ d}_{CB}\text{ = 5}[/tex]

In summary,

Triangle ABE:

[tex]AB=\text{ 5, AE = }\sqrt[]{20}\text{ and BE = }\sqrt[]{5}[/tex]

Triangle ADE:

[tex]\text{ AD = 5, AE = }\sqrt[]{20}\text{ and ED = }\sqrt[]{5}[/tex]

Triangle CBE: CE, CB, and BE

[tex]\text{ CB = 5, CE = }\sqrt[]{20}\text{ and BE = }\sqrt[]{5}[/tex]

The sides of the three triangles shown in the grid are congruent based on the SSS Rule of Triangle.

Thus, the statement that meets our evaluation is:

D. Triangle ABE, ADE and CBE are all congruent.

Carbon-14 is used for archeological carbon dating. Its half-life is 5730 years. How much of a 50-gram sample of Carbon-14 will be left in 1000 years?

Answers

Given:

The half-life of carbon-14 is 5730 years.

The initial amount of carbon is I = 50 grams.

Explanation:

To find the final amount of carbon after 1000 years.

The fundamental decay equation is,

[tex]\begin{gathered} F=Ie^{-\lambda t} \\ \text{Where, }\lambda=\frac{\ln 2}{t_{\frac{1}{2}}} \end{gathered}[/tex]

Let us find the radioactive constant first.

[tex]\begin{gathered} \lambda=\frac{\ln 2}{5730} \\ \lambda=0.00012096809 \end{gathered}[/tex]

Then, the final amount of the corban-14 is,

[tex]\begin{gathered} F=50e^{-0.000121(1000)}^{} \\ =44.30g \end{gathered}[/tex]

Hence, the amount of a 50-gram sample of Carbon-14 will be left in 1000 years is 44.30 g.

x + y =5 x + y = 6 one solution no solutions infinitely many solutions

Answers

Problem

x + y = 5

x + y = 6

method

A system has no solution if the equations are inconsistent, they are contradictory.

for example

2x + 3y = 10

2x + 3y = 12 has no solution.

Final answer

x + y = 5

x + y = 6

are inconsistent

hence, the equations has no solution

NO SOLUTION

which equation has a solution of x = 4

Answers

Answer

Option B is correct.

Only the equation, 3x + 9 = 21, has a solution of x = 4.

Explanation

We are told to pick the equation(s) with x = 4 as a solution from the equations,

5x - 8 = 44

3x + 9 = 21

4x = 24

x - 10 = -8

The step to solving this is to insert x = 4 and check if that is consistent with the given equation.

Option A

5x - 8 = 44

If x = 4

5(4) - 8 = 44

20 - 8 = 44

12 ≠ 44

Hence, this is not an answer

Option B

3x + 9 = 21

If x = 4

3(4) + 9 = 21

12 + 9 = 21

21 = 21

Hence, this is an answer for this question.

Option C

4x = 24

If x = 4

4(4) = 24

16 ≠ 24

Hence, this is not an answer to this question.

Option D

x - 10 = - 8

If x = 4

4 - 10 = -8

-6 ≠ -8

This is also not an answer to this question.

Hope this Helps!!!

Which is the closest to the area of the triangle in square centimeters?

Answers

Option c ) 40 is the  closest to the area of the triangle in square centimeters .

Formula for Area of a right-angled triangle :

Area of a right-angled triangle = [ ( 1 / 2 ) * base * height ]

According to question ,

base = 10.1 cm

height = 8.2 cm

So , Area of triangle = [ ( 1 / 2 ) * 10.1 * 8.2 ]

                                  = 41.41 [tex]cm^{2}[/tex]

This is closest to option c ) 40 .

Hence , option c ) 40 is the closest to the area of the triangle in square centimeters .

To learn more on area of a triangle follow link :

https://brainly.com/question/23945265

#SPJ9

8 with a exponent of 3 divided by 2

Answers

8³ ÷ 3

First we find the value of 8³;

8³ = 512

Then divide by 3

512/3 = 170.6

In Mr. Johnson’s third and fourth period classes, 30% of the students scored a 95% or higher on a quiz.Let be the total number of students in Mr. Johnson’s classes. Answer the following questions, and showyour work to support your answer.If 15 students scored a 95% or higher, write an equation involving that relates the number ofstudents who scored a 95% or higher to the total number of students in Mr. Johnson’s third andfourth period classes. Of the students who scored below 95% 40% of them are girls. How many boys scored below 95%?

Answers

Total number of students = scored below 95% + scored above 95% (I)

______________________________

Students scored below 95%

Scored below 95%* 0.40 = girls

Boys = total scored below 95% (100% - 40%)

Boys = total scored below 95% (60%)

Boys = total scored below 95% (0.6) (II)

__________________________________________

Can you see the updates?

_______________________________

30% of the students scored a 95% or higher on a quiz and 15 students scored a 95% or higher

Total number of students* 30 = 15

30%*n = 15

n= 15/ 0.3

n= 50

_____________________________

Replacing in (I)

Total number of students = scored below 95% + scored above 95%

50 = 15 + 35

Replacing in (II)

Boys = 15 (0.60) = 9

__________________________________________

Answer

9 of the students who scored below 95% are boys

state the solution for the quadratic equation depicted in the graph.

Answers

For this problem, we were provided with the graph of a quadratic equation, and we need to determine the solutions for this graph.

The solutions of a quadratic equation are the values of "x" that make the expression equal to "0". Therefore, we need to look at the graph for the values at which the graph crosses "y=0".

We have two points for this problem. The first one is approximately -5, and the second is 6.

URGENT!! ILL GIVE
BRAINLIEST!!!! AND 100 POINTS!!!!!

Answers

Answer:

I don't know the answer but I want to say something ...you can't just go around writing HELP!!! ILL GIVE 100 POINTS when your question only gives 5!!! it's just deceptive, if you want someone's help at least be honest! thank you for your time

CJ loves Girl Scout cookies. He eats 3 cookies per hour. After 5 hours, there are 24 cookies left in the box. Write an equation in slope intercept form. Determine how many hours it will take CJ to eat the entire box of cookies.

Answers

To solve this problem: y will represent the number of cookies, and x the number of hours.

To find the number of cookies that CJ eats per hour, we multiply 3 (since he eats 3 per hour) by x (the number of hours)

Since there we only 24 cookies left in the box, we will need to substract 3 by the number of hours that have passed, from 24 to find the number of cookies "y":

[tex]y=24-3(x-5)[/tex]

This equation represents that the number of cookies "y" is equal to the 24 cookies that where left after 5 hours, and to that we substract 3 (which is the number of cookies per hour) by total number of hours that have passed since those 5 hours (x-5) because 5 hours that have already passed we substract them from x.

We need to simplify that equation to represent in slope-intercept form:

[tex]\begin{gathered} y=24-3x+15 \\ y=-3x+39 \end{gathered}[/tex]

Now we need to determine the number of hours it would take to finish the cookies. So we are looking for the value of x, that makes y=0:

[tex]0=-3x+39[/tex]

solving for the number of hours x:

[tex]\begin{gathered} -3x=-39 \\ x=-\frac{39}{(-3)} \\ x=13 \end{gathered}[/tex]

It would take 13 hours for CJ to eat the entire box of cookies.

The Knitting Club members are preparing identical welcome kits for new members. The Knitting Club has 45 spools of yarn and 75 knitting needles. What is the greatest number of identical kits they can prepare using all of the yarn and knitting needles?

Answers

Common factors of 45 : 1,3,5,9,15,45

Common factors of 75 : 1,3,5,15,25,75

Common factors: 1,3,5,15

GReatest common factor = 15

15 identical kits

Sue, who is 5 feet tall, is standing at Point D in the drawing. The tip of her head is a point E. a tree in the yard is at point B with the top of the tree at point C. Sue stand so her shadow meets at the end of the trees shadow at point a Which triangles similar?How do you know?Find the height of the tree (This distance from B to C).

Answers

Which triangles are similar?

The triangle AED and the triangle ABC is similar.

How do you know?

Because all the angles are equal, the triangle AED and ABC have the same angle values, then they're similar.

Find the height of the tree (This distance from B to C)

We can use the relation of the similar triangle to find BC, we can write the equation

[tex]\frac{AB}{AD}=\frac{BC}{ED}[/tex]

The only unknown value here is BC, then

[tex]\frac{24+8}{8}=\frac{\text{BC}}{5}[/tex]

Now we solve it for BC!

[tex]\begin{gathered} \frac{32}{8}=\frac{BC}{5} \\ \\ 4=\frac{BC}{5} \\ \\ BC=4\cdot5 \\ \\ BC=20\text{ ft} \end{gathered}[/tex]

Hence, the height of the tree is 20 ft

Using the compound interest formula, determine the total amount paid back and the monthly payment. Buying a $6000 used sedan taken out with $500 paid up front and the rest borrowed at 8.3%annual interest compounded daily (365 days per year) over 2 years.

Answers

The final value of an investment or loan with compound interest is given by:

[tex]FV=P(1+\frac{r}{m})^{m\cdot t}[/tex]

Where P is the initial value (principal or loan), r is the annual interest rate, t is the duration of the investment/loan, and m is the number of compounding periods per year.

The following values are given in the problem:

P = $6000 - $500 = $5500

r = 8.3% = 0.083

t = 2 years

m = 365

Applying the formula:

[tex]FV=5500(1+\frac{0.083}{365})^{365\cdot2}[/tex]

Calculating:

[tex]FV=5500(1+0.0002273926)^{730}[/tex]

FV = $6493.03

The total amount paid back is $6493.03

This is equivalent to an approximate monthly payment of:

[tex]R=\frac{$ 6493.03 $}{24}=270.54[/tex]

The monthly payment is approximately $270.54

The figure below shows the graph of f’ , the derivative of the function f, on the closed interval from x = -2 to x = 6. The graph of the derivative has horizontal tangentlines at x = 2 and x = 4.

Answers

Solution

- The points of inflection of f(x) in a graph of f'(x) is gotten by just finding the points where the graph moves from increasing to decreasing, and also from decreasing to increasing.

- Thus, we have

- The points where the graph changes from increasing to decreasing is at point (2, 0) and the point where the graph moves from decreasing to increasing is (4, -2.5)

- Thus, the inflection points of the graph of f are at (2, 0), and (4, -2.5)

? Question The table shows certain values of a fourth-degree polynomial function with no repeated factors. -12 -10 -6 -4 2 4 8 10 12 у 280 81 -14 0 0 -24 0 126 400 The function must have a zero between the x-values of -12 and -10 Between the x-values of 2 and 8, the graph of the function should be drawn the x- The function must be positive for all x-values between Submit

Answers

Hi.

Please is this question from a quiz or a test?

Okay, so this is from an ongoing quiz?

Okay.

Unfortunately, I can’t help you as this appears to be a quiz, test, or assessment, and is a violation of Brainly’s Community Guidelines. Please review our Honor Code prior to requesting tutoring in the future: https://faq.brainly.com/hc/en-us/articles/360011207279-What-is-Brainly-s-Honor-Code-.

Keep in mind that if you attempt to use Brainly to cheat again, further action may be taken on your account.

The app is only for homework or assignments.

We cannot assist with an ongoing test or quiz.

Thank you for understanding.

Answer: (-10 and 06), below, (-4, 2)

Step-by-step explanation:

From Edmentum.

The center of a circle and a point on the circle are given. Writecenter: (3,2), point on the circle: (4,3)

Answers

Given:

The center of the circle is the point ( 3, 2 )

And the point on the circle is ( 4, 3 )

To write the equation of the circle, we need to find the radius

The radius = the distance between the center and the point on the circle

so, the radius is the distance between ( 3, 2) and ( 4, 3)

So,

[tex]\begin{gathered} r=d=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \\ r=\sqrt[]{(4-3)^2+(3-2)^2^{}}=\sqrt[]{1+1}=\sqrt[]{2} \end{gathered}[/tex]

The general equation of the circle is:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Where (h, k) is the coordinates of the center of the circle, r is the radius

So,

[tex]\begin{gathered} (h,k)=(3,2) \\ r=\sqrt[]{2} \end{gathered}[/tex]

so, the equation of the circle will be:

[tex](x-3)^2+(y-2)^2=2[/tex]

For a standard normal distribution, find the z-value that goes with a left tail area=0.9931

Answers

The z-value that goes with a left tail Area= 0.9931 is 2.4 .

What is normal distribution?

A probability distribution that is symmetric about the mean is the normal distribution, also known as the Gaussian distribution. Data close to the mean are more common than data far from the mean. The normal distribution is displayed as a "bell curve" on the chart.

What is left rear area?

The area under the curve to the left of x* in Figure 5.19, “Right and left tails of the distribution” is known as the left tail of the density curve for a continuous random variable X whose limit is x* (a).

According to the Z-value normal distribution table, its value is 2.4 .

To know more about normal distribution visit to:

https://brainly.com/question/13759327

#SPJ1

Solve the equation for all real solutions. 9z^2-30z+26=1

Answers

Weare given the following quadratic equation, and asked to find all its real solutions:

9 z^2 - 30 z + 26 = 1

we subtract "1" from both sides in order to be able to use the quadratic formula if needed:

9 z^2 - 30 z + 26 - 1 = 0

9 z^2 - 30 z + 25 = 0

we notice that the first term is a perfect square:

9 z^2 = (3 z)^2

and that the last term is also a perfect square:

25 = 5^2

then we suspect that we are in the presence of the perfect square of a binomial of the form:

(3 z - 5)^2 = (3z)^2 - 2 * 15 z + 5^2 = 9 z^2 - 30 z + 25

which corroborates the factorization of the trinomial we had.

Then we have:

(3 z - 5)^2 = 0

and the only way such square gives zero, is if the binomial (3 z - 5) is zero itself, which means:

3 z - 5 = 0 then 3 z = 5 and solving for z: z = 5/ 3

Then the only real solution for this equation is the value:

z = 5/3

If P = (-3,5), find the imageof P under the following rotation.180° counterclockwise about the origin([?], []).Enter the number that belongs inthe green box.Enter

Answers

The rule for a 180° counterclockwise rotation is-

[tex](x,y)\rightarrow(-x,-y)\text{.}[/tex]

So, we just have to change the sign of each coordinate.

[tex](-3,5)\rightarrow(3,-5)[/tex]Hence, the image is (3,-5).

Alex surveyed 60 student about their Vera zoo animals and made the circle graph of the results shown below

Answers

we can use the cross multiplication

we know that the full angle of a circle is 360° so the total angle corresponds to 60 students

so, what is 72 degrees?

[tex]\begin{gathered} 360\longrightarrow60 \\ 72\longrightarrow x \end{gathered}[/tex]

where x is the number of students than said giraffes

[tex]\begin{gathered} x=\frac{72\times60}{360} \\ \\ x=12 \end{gathered}[/tex]

the students than said giraffes are 12

Hello, how are you? I would like you to help me solve this exercise, please!

Answers

Given

Formula for the length of an arc

[tex]\begin{gathered} Measureof\text{Arc of a circle=}\frac{\theta}{360}\times2\pi r \\ \\ \end{gathered}[/tex]

Parameters;

[tex]\begin{gathered} \theta=?\text{ , r=1m} \\ \text{measure of arc =}\frac{\pi}{9} \end{gathered}[/tex]

We can substitute into the formula

[tex]\begin{gathered} \frac{\pi}{9}=\frac{\theta}{360}\times2\times\pi\times1 \\ \\ \frac{\pi}{9}=\frac{2\theta\pi}{360} \\ \text{cross multiply} \\ 18\theta\pi=360\pi \\ divide\text{ both sides by 18}\pi \\ \frac{18\theta\pi}{18\pi}=\frac{360\pi}{18\pi} \\ \theta=20^0 \end{gathered}[/tex]

Now, change to radian

[tex]\frac{\pi}{180}\times20^0=\frac{20^0\pi}{180^0}=\frac{\pi}{9}[/tex]

The final answer

[tex]\frac{\pi}{9}[/tex]

Use the GCF to factor this expression.40x + 24y - 56

Answers

The given expression is,

[tex]40x+24y-56[/tex]

The factors of 40, 24 and 56 are,

[tex]\begin{gathered} 40\colon2,4,5,8,10 \\ 24\colon2,4,3,8 \\ 56\colon2,4,7,8 \end{gathered}[/tex]

The greatest common factor is therefore, 8.

Therefore, the given expression can be written as,

[tex](8\times5)x+(8\times3)y-(8\times7)[/tex]

Taking 8 as common, we have,

[tex]8(5x+3y-7)[/tex]

Apply zero product theorem to solve for x[tex]x ^{2} = 9[/tex]

Answers

Answer:

[tex]\begin{gathered} x_1=-3 \\ x_2=3 \end{gathered}[/tex]

Step-by-step explanation:

To apply the zero product theorem, put all the terms on the left side to equal zero.

[tex]x^2-9=0[/tex]

Factoring the binomial:

[tex]\begin{gathered} (x+3)(x-3)=0 \\ x_1+3=0 \\ x_1=-3 \\ \\ x_2-3=0 \\ x_2=3 \end{gathered}[/tex]

A student has 5 pairs of plants, 2 shirts and 7 necklaces. He chooses one shirt, one pair of pants, and one necklace. How many different outfits could he make?

Answers

Answer:

70

Explanation:

By the rule of multiplication, we can calculate the number of different outfits as

5 x 2 x 7 = 70

pants shirts necklaces

Therefore, there are 70 different outfits

Weekly wages at a certain factory arenormally distributed with a mean of$400 and a standard deviation of $50.Find the probability that a workerselected at random makes between$500 and $550.

Answers

The Solution:

Step 1:

We shall state the formula for calculating Z-score.

[tex]\begin{gathered} Z=\frac{X-\mu}{\sigma} \\ \text{Where X}=5\text{00 ( for lower limit) and X=550 for upper limit.} \\ \mu=400 \\ \sigma=50 \end{gathered}[/tex]

Step 2:

We shall substitute the above values in the formula.

[tex]\begin{gathered} \frac{500-400}{50}\leq P(Z)\leq\frac{550-400}{50} \\ \\ \frac{100}{50}\leq P(Z)\leq\frac{150}{50} \\ \\ 2\leq P(Z)\leq3 \end{gathered}[/tex]

Step 3:

We shall read the respective probabilities from the Z score distribution tables.

From the Z-score tables,

P(3) = 99.9 %

P(2) = 97.7 %

Step 4:

The Conclusion:

The probability that a worker selected makes between $500 and $550 is obtained as below:

[tex]\text{Prob}(500\leq Z\leq550)=99.9-97.7\text{ = 2.2 \%}[/tex]

Therefore, the required probability is 2.2 %

the beginning of the question is "if the slope of..." please help

Answers

we know that

If two lines are parallel, then their slopes are equal

In this problem

mAB=mCD

substitute the given values

3/4=(x-2)/12

solve for x

multiply by 12 both sides

(x-2)=12(3/4)

x-2=9

x=9=9+2

x=11

According to a pencil company's advertising campaign, 2 out of 3 students prefer the company's pencils to their competitor's pencils. A representative of the company went to a high school with 1479 students for alq & A session, and one of the students asked, "If this is true, in this high school, how many more students are there who prefer your pencils than students who prefer your competitor's pencils?" Help the company's representative come up with an answer. Assume that the company's claim is true.Part 1: How many of the students in the high school prefer the company's pencils? Part II: Out of 3 students, how many prefer the pencils of the company's competitor?Part III: How many of the students in the high school prefer the pencils of the company's competitor? Part IV: In the high school, how many more students are there who prefer the company's pencils than students who prefer their competitor's pencils?

Answers

Data:

2 of 3 students prefer the company's pencils to their competitor's pencils

high school with 1479 students

Part 1:

You have 1479 students in total and know that 2 of 3 students prefer the company's pencils, then you multiply the toatl number of students by the factor 2/3

[tex]1479\cdot\frac{2}{3}=\frac{2958}{3}=986[/tex]Then, 986 students in the high school prefer the company's pencils

Part 2:

Of 3 students 1 prefer the pencils of the company's competitorPart 3:

Substract the number of students that prefer the company's pencils from the total of students:

[tex]1479-986=493[/tex]Then, 493 students in the high school prefer the pencils of the company's competitorPart 4:

Substract the number of students who prefer the competitor's pencils fom the students that prefer the company's pencils:

[tex]986-493=493[/tex]Then, in the high school there are 493 students more that prefer the company's pencils than students who prefer their competitor's pencils

Multiples of 36 and the square root of 49

Answers

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

36

√49

Step 02:

multiples:

36:

The multiples of thirty-six are the numbers that contain it a whole number of times.

36, 72, 108, 144, 180, ...

√49:

[tex]\sqrt[]{49}=7[/tex]

The multiples of seven are the numbers that contain it a whole number of times.

7, 14, 21, 28, 35, 42, ...

That is the full solution.

Other Questions
Which line from the story reveals Montresors true intentions in his dealings with Fortunato?ResponsesA)"With these materials and with the aid of my trowel, I began vigorously to wall up the entrance of the niche."B)"We continued our route in search of the Amontillado."C)"'Come," I said, with decision, 'we will go back; your health is precious.'"D)"But to these words I hearkened in vain for a reply. I grew impatient. I called aloud", 2.) Which equation represents the balance scale shown? 3x = 7 X-3 = 7 x/3 = 7 x + 3 = 7 Graph the parabola.Y = -2x^2 - 16x - 34Plat five points on a parable the vertex ,two points to the left of the vertex ,and two points to the right of the vertex . then click on the graph a function button. Topic sentence:A topic sentence captures the key idea of the paragraph. This sentence would help the readers understand the objective of the paragraph and also helps them tie the passage with the other paragraphs and the overall essay. Example:Undeniably, abortion is a terrible thing. The question is not whether abortion is good; the question is whether it should be allowed. There are many people who do not believe in necessary evil. There are people who believe that if a woman becomes pregnant, that child should be born no matter the circumstances. As a result, the child is required to face the consequences of the parents actions, even if they might suffer. Is it fair to the child to be born in an inhospitable environment? No child should ever question whether or not he or she should have been born. Topic Sentence of above example - (Children should be born to parents that are ready to raise the children and give them a fair chance in life). Review the following two paragraphs and separately add a topic sentence to help the readers understand what the paragraphs are about. Also, color-code your topic sentence in blue.1. In our society everything is used for personal attraction and social success andbreast-feeding is supposed to spoil these. What might be tempting on a Cosmopolitancover is looked down upon when the same part of the body is used for feeding (onemight remember another episode in Seinfeld in which a scantly-clad friend of Elainewalks on the road only to lead Kramer and Jerry to a car accident). Many women evenin this Feminist age still believe that breastfeeding does not have any health value for children and are worried thatbreastfeeding would only spoil their attractiveness.2. Some thinkers have argued that if men are mostly built to get financial security, womenare designed for the birth and welfare of children and thus breast-feeding is a biological necessity. Gillian Bentley, a Royal Society research fellow at the University College in London, England, argues thatwomen's breasts were meantfor feeding babies and not for any romantic purpose. Even the books on motherhood do notsuggest that breastfeeding is a personal right which has a social purpose and doing itin public is perfectly all right. In some states it is not legal to nurse a child in public, andlaw-makers fear that allowing this practice in public would allow women with exhibitionisttendency to misuse the activity (Tamaro 145). Make me a recipe using sequence words please help meee in the early 1980s the fed tightened monetary policy. over the next few years inflation a. remained high and unemployment rose. b. and unemployment rose. c. and unemployment fell. d. fell but unemployment rose temporarily. Translate the sentence into an equation Three times the sum of a number and 2 is equal to 9 Use the variable y for the unknown number Two Column Proof. If you could write it on a piece of paper and send a picture, that would be great. ratio of number of boys to girl is 5 to 4 there are 60 girls in choir how many boys are there Leah is buying titles for her bathroom. Each tile is 3/8 foot wide and covers an area that is 7/3 square feet. The bathroom floor is in the shape of a rectangle. She is putting 8 tiles along the longer wall of the bathroom and 5 tiles along the shorter wall of the bathroom. What is the perimeter of the bathroom? The bathroom and one tile are pictured below. Answer the statistical measures and create a box and whiskers plot for the following set of data.1, 1, 2, 2, 5, 6, 11, 11, 12, 13, 14, 16, 17, 19 500 books were sold the first day it went on sale. 150 books were sold each day after that. Write an equation to represent the total number of books sold. How many books were sold after 50 days? what is 24 as a fraction or mixed number mond Baware Infinits Piscais Angles and Angle Measure Name 5.2 Cual es el resultado de efectuar (2x+5) + (x-2)(x-2)? The difference of a number and 6 is the same as 5 times the sum of the number and 2. What is the number?A 4B. -2C -1D. 1 +85=2Group of answer choicesv = -1 and v = -15v = -1 and v = -5No Solutionv = -15 and v = 15 Math answers and how you got the answer to solve Rewrite each equation in slope-intercept form, if necessary, then determine whether the lines are parallel , perpendicular, or neither.A.) y=2+1B.)2x+y=7The slope line A is _The slope of line B is _Lines A and B are _ 4) (-21) multiplying complex numbers