4. 5. 6. None of the choices are correct.

Answer:

-x²+7x+18

Step-by-step explanation:

(x+2) (9-x).

x(9-x)+2(9-x)

9x-x²+ 18-2x

9x-2x-x²+18

7x-x²+18

-x²+7x+18

Answer:

x^2-7x-18

Step-by-step explanation:

Verified Khan Academy Answer

I want to make this clear, this is NOT MY ANSWER! Someone else has already answered this question on here I'm just pasting their answer here so you can get the full details on how it was solved.

We know that 1/5 > 1/6 > 1/7

If we change the numbers to decimals we can see what decimals we can use that are between the number 1/5 and 1/7 .

1/5=.20

1/7≈.14

We can use any number between these two decimals to create a fraction. Let us use .16

.20>.16>.14

Now we can change that number to a fraction.

.16=16/100 which reduced to 4/25

Let's verify:

1/5 > 4/25 > 1/7    find LCM

35/175 > 28/175 > 25/175

One fraction that is between 1/5 and 1/7 that does not have a denominator of 6 is 4/25.

Answer:

Step-by-step explanation:

The graph choices have not been posted.

There is also a doubt as to what is really wanted, is it

A. f(x) = 100(0.5)^x - 1

or

B. f(x) = 100(0.5)^(x - 1)

I have included a graph for each. Feel free to make a choice between the two, A is red, and B is blue.

Answer:

it's B

Step-by-step explanation:

i literally just did it on ed

Answer:

3. No errors were made. The problem was worked correctly.

Step-by-step explanation:

2(10x + 3) − x = 44

Distribute

20x +6 -x =44

Combine like terms

19x +6 = 44

Subtract 6 from each side

19x =38

Divide by 19

19x/19 =38/19

x =2

Answer:

One.

Step-by-step explanation:

It is a linear equation. This means that x is raised to the first power, which there can only be one solution.

Answer:

Hi, the correct answer to your question is Y,X would be (29,11)

ONE SOLUTION

Step-by-step explanation:

First you have to... solve for y

Y equals 2x+7

Next you have to use the variable y and put in into an equation.

2x+7 - 3x = -4 (Also) :) - x = -11

Now you have to solve the equation for the variable x

Which will be 11 (x will be 11)

Finally you have to use x to solve for y

2(11)+7 = 29

Now we have 11 and 29 so the answer to your question will be

= (29,11)

Also this means it has one solution

Btw this is a linear equation...

Hope this helps you! :)

Answer:

0.5686

Step-by-step explanation:

The alternative hypothesis would be p ≠ 0.11. Thus, this is a two tailed test.

We are given;

p = 0.11

p^ = 8/88 = 1/11 = 0.0909

n = 88

Formula for the Test Statistic is given by;

z = (p^ - p)/(√(p(1-p)/n))

z = (0.0909 - 0.11)/(√(0.11(1 - 0.11)/88))

z = - 0.572642

z ≈ -0.57

Now, from the z-table to find the P-value at z = -0.57 is; 0.2843

Since this is a two tailed test, we have to multiply the P-value by 2 to get the total P-value.

Thus, P-value = 2 × 0.2843 = 0.5686

Answer:

4+8=12 so,if its 12 so

Step-by-step explanation:

the some will be 12

12-8=4

12-4=8

Answer: independent variables cause the effect measured in the dependent variables

Step-by-step explanation: In a causal - comparative study, the dependent variables refers to the variable whose changes is being measured or observed. The changes or alteration of the dependent variable is induced by the different values of the independent variable. In causal - comparative study, the different independent variables is assumed to have a direct impact on the output or values of the dependent variable which is measured by the experimenter. Therefore, the independent variable does not change, but causes the observed changes noticed in the dependent variable.

Answer:

i would say b

Step-by-step explanation: if they all slept 4 hours a night then all 9 would have a total of 36 and a night would be 1 so 36 to 1

Answer:

245.04 cm²

Step-by-step explanation:

Use the formula for the surface area of a cylinder: 2[tex]\pi[/tex]r² + 2[tex]\pi[/tex]rh

Now, we can plug in the values:

2[tex]\pi[/tex](3)² + 2[tex]\pi[/tex](3)(10)

18[tex]\pi[/tex] + 60[tex]\pi[/tex] = 245.04

The total surface area of the can is 244.92 square centimeters which is closest to 245.04 square centimeters.

We have a can in the shape of a cylinder has a diameter of 6 centimeters and a height of 10 centimeters.

We have to determine total surface area of the can in square centimeters.

The total surface area of a cylinder with radius 'r' and height 'h' is given by -

A = 2πr(h + r)

According to the question, we have -

diameter of can = 6 cm

Then, the radius will be (r) = 6/2 = 3 cm

Height of can (h) = 10 cm

Substituting the values, we get -

A = 2 x 3.14 x 3 (10 + 3)

A = 2 x 3.14 x 3 x 13

A = 6 x 13 x 3.14

A = 78 x 3.14

A = 244.92 square centimeters.

Hence, the total surface area of the can is 244.92 square centimeters which is closest to 245.04 square centimeters.

To solve more questions on Surface area of cylinder, visit the link below-

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Answer:

Records: $6000

Grass Seed: $4000

Toys: $3000

Food: $11000

Step-by-step explanation:

We have to use the number of degrees in each category in comparison to the total number of degrees in a circle, 360 degrees. Records is 90 degrees, so 90:360 = 1:4 = 1/4. So 1/4 of the total pie is $6000. For food, we add the other sub-category's costs, and subtract that from $24000.

Answer:

Step-by-step explanation:

1. Toys = [tex] \frac{45}{360} \times 24000 = 3000[/tex]

2. Grass seed[tex] = \frac{60}{360 } \times 24000 = 4000[/tex]

3. Records = [tex] \frac{90}{360} \times 24000 = 6000[/tex]

4. Food = 24000 - ( 3000+4000+6000)

= 24000 - 13000

= 11000

Hope this helps...

Best regards!!

Answer:

x + 2x = 30 is the correct answer.

Answer:

a

Step-by-step explanation:

Answer:

the answer is a.

Step-by-step explanation:

I did this one.

Answer:

3n +2 -8n

2 - 5n

Step-by-step explanation:

Answer:

He only multiplied the 2 to the first term in the parentheses instead of both terms

Step-by-step explanation:

3n+2(1-4n)

Distribute

3n + 2 -8n

Combine like terms

2 -5n

Samuel made the mistake of incompletely distributing

He only multiplied the 2 to the first term in the parentheses instead of both terms

3n+2(1-4n)

3n +2 -4n

2-n

Answer:

No.

Step-by-step explanation:

To determine if the ordered pair is a solution, simply plug it into the equation and check. In other words:

[tex]y\geq x^2-4[/tex]

[tex]0\geq (0)^2-4[/tex]

[tex]0\geq -4[/tex]

This is true. 0 is greater than -4.

[tex]y<2x-1[/tex]

[tex]0<2(0)-1[/tex]

[tex]0<-1[/tex]

This is not true. 0 is greater than -1.

Thus, (0,0) is not a solution.

Answer:

(0,0) is not a solution of the given system.

Step-by-step explanation:

0≥-4 true

0>1 false

(0,0) is not a solution of the system.

Complete Question:

Madison claims that two data sets with the same median will have the same variability. Which data set would provide good support for whether her claim is true or false?

A. Her claim is true and she should use these data sets to provide support. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 7. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 6.

B. Her claim is true and she should use these data sets to provide support. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 7. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 5 to 8. A line divides the box at 7.

C. Her claim is false and she should use these to show that two data sets with the same median can have different variability. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 7. A box-and-whisker-plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 5 to 8. a line divides the box at 7.

D. Her claim is false and she should use these to show that two data sets with the same median can have different variability. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 7. A box-and-whisker-plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 5 to 8. a line divides the box at 5.5.

Answer:

C. Her claim is false and she should use these to show that two data sets with the same median can have different variability. A box-and-whisker plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 4 to 9. A line divides the box at 7. A box-and-whisker-plot. The number line goes from 0 to 11. The whiskers range from 2 to 11, and the box ranges from 5 to 8. a line divides the box at 7.

Step-by-step explanation:

The median of a box plot is indicated by the line that divides the rectangular box into 2.

Also, the interquartile range is a measure of variability. And this is indicated or represented on a box plot by the range of the box. That is the difference between one end of the box and the beginning of the other end to our left.

The data set that can be used to show that Madison claim is false is a data set showing 2 box plots with the same median value but different interquartile range.

Therefore, C is the right option. Both data set in the drop box would have a median of 7. The interquartile range of one of the drop box would be = 9-4 = 5, while the other would be = 8-5 = 3.

This shows 2 data set with the same median can have different variability.

Answer:

2d + 35

Step-by-step explanation:

2 per dog (d) plus an additional 35 treats = 2d + 35

Answer:

b

Step-by-step explanation:

Answer:

114,400 and 118,976.

Step-by-step explanation:

Let's represent this using a function. Let's let:

[tex]P(y)[/tex] represent the total population, and [tex]y[/tex] represent the total number of years since last year.

We know that the population grows by 4% every year or 0.04 every year. This is exponential growth. We can write this as:

[tex]P(y)=110000(1.04)^y[/tex]

Note that the coefficient is 110000 because that is the year we are starting with. Also, note that it is 1.04 because we are essentially adding .04 to the original population.

Anyways, to find the present population, set y equal to 1 (because 1 year after last year is the present year)

[tex]P(1)=110000(1.04)^1=114400[/tex]

The present population is 114,400 people.

For next year, set y equal to 2 (2 years after last year is next year)>

[tex]P(2)=110000(1.04)^2=118976[/tex]

The population next year will be 118,976 people.

Answer:

No

Step-by-step explanation:

For shapes to be similar, their ratios of length-to-length and width-to-width must be the same. When you divide the larger length by the smaller length and the larger width by the smaller width, do you get the same number? No, so these rectangles are not similar.

Answer:

Not similar

Step-by-step explanation:

Well let’s find the areas first.

My garden)

12*8

=96

Freind’s garden)

50*10

=500

The two gardens are not similar whatsoever.

Thus,

the two gardens are not similar.

Hope this helps :)

Answer:

x = -26.3746, 11.3746

Step-by-step explanation:

Easiest and fastest way to solve for x is to graph x² + 15x - 300 and analyze where the graph crosses the x-axis.

Alternatively, you can use the Quadratic Formula to help solve for x.

Answer:

0.46 each

Step-by-step explanation:

Answer:

£0.46 per pen

Step-by-step explanation:

We need to find the unit rate, or price per pen.

Therefore, we can divide the price by the number of pens.

price / number of pens

It costs £2.76 for 6 pens.

price= £2.76

number of pens = 6 pens

£2.76 / 6 pens

Divide 2.76 by 6

£0.46 / pen

The price per pen is  £ 0.46

I believe the answer would be A.

Answer:  105, 15, 35, 21

Step-by-step explanation:

3 x 5 x 7 = 105

3 x 5       = 15

     5 x 7 = 35

3    x    7 = 21

The list of all composite factors of K are 15, 21, 35, 105.

A number which can be divisible by only 1 and the number itself, that number is said to be a Prime Number.

A number which can be divisible by factors other than 1 and itself are called Composite Numbers.

The process to write a number by the product of its prime numbers is called Prime Factorization.

Here given that the prime factorization of K is given by,

[tex]K=3\times5\times7[/tex]

Hence the number is [tex]K=105[/tex].

Composite factors of a number are given by the product of prime factors of that number in different combinations.

Here prime factors are 3,5,7

The composite factors are given by,

[tex]3\times5=15\\5\times7=35\\3\times7=21\\3\times5\times7=105[/tex]

Thus the composite factors of K are given by 15,21,35,105.

Learn more about Prime Factorization here -

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Answer:

parallelograms

Step-by-step explanation:

It's all about diagonals

Answer:

Step-by-step explanation:

(0,5), (1,0)

(0-5)/(1-0)= -5/1= -5

y - 0 = -5(x - 1)

y = -5x + 5

Answer:

Kristen had (3/4) of a granola bar in total.

Then the three other people have 2.25 granola bars to share amongst themselves.

Step-by-step explanation:

Complete Question

Tom, Kristen, Kaley, and Bill bought 3 granola bars to share among themselves. They divided each granola bar into 4 equal portions. Kristen ate 1 portion from each granola bar.

How many granola bars did Kristen eat.

Solution

4 of them bought 3 granola bars.

Then they divide each granola bar into 4 equal portions.

Each of the 3 granola bars gets divided into 4 equal portions, where each granola bar now has (4 × 1/4) portions.

Each portion is (1/4) of a granola bar.

Kristen then takes 1 portion from the 3 granola bars.

This means she had 3 × (1/4) granola bars.

Kristen had (3/4) of a granola bar in total.

Then the other three people had [3 - (3/4)] of a granola bar to share amongst themselves. It means they had (9/4) or 2.25 granola bars to share amongst themselves.

Hope this Helps!!!

Image is attached below.

If the sum of the digits its divisible by 9,

then the original number is divisible by 9.

Since 18 (the sum of the digits) is divisible by 9,

the number 540,171 is also divisible by 9.

Answer:

Yes, The number is divisible by 9

Step-by-step explanation:

If you divide the number by 9 you will get 60019. Also if we add the numbers we will get 18 which is also divisible by 9.

Hope this helps.