I need help plz i will make u a brainllest
1.Identify the property that justifies the following statement: 31. 36.Find the value of x rounded to the nearest tenth. 38.Which statements could you use to conclude that JKLM is a parallelogram?

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:

A. 8x² + 2y²

Step-by-step explanation:

There is a formula for the perimeter.

2l + 2w

2(4x²) + 2(y²)

8x² + 2y²

The perimeter of the rectangle is 8x² + 2y².

Answer:

1

Step-by-step explanation:

To add fractions, we need to make the denominators the same. Luckily, we can simplify 2/10 to 1/5. Now that the denominators are both 5, we can add. When adding fractions, we only add the numerator, and the denominator remains the same, so we'd do 4+1/5, which equals 5/5, which simplifies to 1.

Answer:

1 or 10/10

Step-by-step explanation:

Step 1 make a common denominator

            to make a common demoniator multiply the top and bottom number by the same number

                         so multiply the 4 and 5 by 2 to get 8/10

Step 2 now that you have 8/10 add it with 2/10

Step 3 solve to get 10/10 and then simplify it to 1

|x| < 3 turns into -3 < x < 3

This says that x is between -3 and 3, but cannot equal either endpoint.

The graph will be a number line with open circles at -3 and 3. Then you shade in between those open circles.

It's the graph below vvv/ Have a good day! xx

Answer:

The error is in Step 2. The student distributed -3 incorrectly; it should have been 9, not -9. The correct solution is -8 - 24 + 9 + 13 = -32 + 9 + 13 = -32 + 22 = -10.

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:

I think the answer is B. Let me know if im right

Step-by-step explanation:

l*w*1/2 is the same as 1/2*y*(x2-x1)

Answer:

B

Step-by-step explanation:

To calculate the area of this triangle we must use vectors :

Now to calculte the area of this triangle we must apply this relation :

A= (1/2)*║x1y1-x2y2║

Answer: B

Step-by-step explanation:

The range of a function is every valid y value, in this case represented by B

Answer:

See explanations below

Step-by-step explanation:

In the function

f(x) = x + 30

x represents the volume of coal in cubic yards.

The implicit coefficient of one, i.e. 1x, represents each cubic yard of coal weighs one ton.

The 30 represents the weight in tons of the empty coal car.

Thus when the weight of the coal car is only 26 tons, we replace 30 by 26 to get a new function

f(x) = x + 26.

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!!!

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.

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.

Answer:

Step-by-step explanation:

we khow that the height of the cylinder is 32 inches

divide it by 2 to get the radius 32/2= 16

let V be the volume :

The volume of the sphere will be 5461.3 π cubic inches. Then the correct option is D.

Let r be the radius of the sphere.

Then the volume of the sphere will be

V = 4/3 πr³ cubic units

A sphere fits perfectly into the cylinder as shown, touching the top and bottom of the cylinder.

If the height of the cylinder is 32 inches.

The height of the cylinder and sphere are same.

Then the radius of the sphere will be

r = 32 / 2

r = 16 inches

Then the volume of the sphere will be

V = 4/3 π(16)³ cubic units

V = 5461.3 π cubic inches

Then the correct option is D.

More about the volume of the sphere link is given below.

https://brainly.com/question/9994313

#SPJ2

Answer:

y = negative 1 over 2x + 11

Step-by-step explanation:

Given the table :

X - - - - Y

2 - - - - 10

4 - - - - 9

6 - - - - 8

8 - - - - 7

The equation can be modeled using the equation of a line or linear equation and obtaining the equation of the best fit

y = mx + c

x and y are the variables

m = slope or gradient of the line

c = intercept

The equation can be obtained by using the linear regression calculator, Inputting the x and y values which yields the equation of the best fit line.

The result obtained from the calculator is:

ŷ = -0.5X + 11

Step-by-step explanation:  y = negative 1 over 2x + 11 is the correct answer. I took the test. Have a good day! :D

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

Answer:

parallelograms

Step-by-step explanation:

It's all about diagonals

Answer:

p = 100

Step-by-step explanation:

If Q and T are midpoints, then the triangles URS and UQT are similar triangles and verify the following proportions:

[tex]\frac{QT}{RS} =\frac{UQ}{UR} =\frac{UT}{US} =\frac{1}{2}[/tex]

and all should equal 1/2 because Q and T are midpoints.

Then we study in particular the proportion:

[tex]\frac{QT}{RS} =\frac{1}{2}[/tex]

since we know both segments can be expressed in terms of "p" as indicated in the problem:

[tex]\frac{QT}{RS} =\frac{1}{2}\\\frac{p-87}{p-74} =\frac{1}{2}\\2(p-87)=p-74\\2p-174=p-74\\2p-p=174-74\\p=100[/tex]

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 -

https://brainly.com/question/92257

#SPJ2

Answer:

x + 2x = 30 is the correct answer.

Answer:

59

Step-by-step explanation:

5: 30 pm is 2.5 hours after 3 : 00 pm

Substitute x = 2.5 into the equation

y = - 6.2(2.5)² + 41.5(2.5) - 5.6

  = - 38.75 + 103.75 - 5.6

  = 59.4

The average number of cars is 59

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:

Option 3

Step-by-step explanation:

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.

Answer:

the location of point A after the transformations are complete is (-5, 1)

Step-by-step explanation:

Given the coordinate of the trapezoid at A(-5, 1), B(-4, 3), C(-1, 3) and D(-2, 1).

The location of point A is at (-5, 1) which is the second quadrant, when it is rotated 180 degrees about the origin, the point moves to the fourth quadrant and the new point is at (5, -1). If it is then reflected over the x axis, the x coordinate remain the same and the sign of the y coordinate changes making the new point (5, 1). If it is then reflected over the y axis, the y coordinate remain the same and the sign of the x coordinate changes making the new point (-5, 1).

the location of point A after the transformations are complete is (-5, 1)

Answer:

the location of point A after the transformations are complete is (-5, 1)

Step-by-step explanation:

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:

2a). Y= 1. 3= x

2b). Y=4 x= 1

3).

Y= x²+3x-18

For -5

First difference

10

Second difference

-8

For -4

First difference

4

Second difference

-14

For -3

First difference

9-9= 0

Second difference

-18

For -2

First difference

-2

Second difference

-20

For -1

First difference

-2

Second difference

-20

For 0

First difference

0

Second difference

-18

The relation ia a quadratic relation because of the highest Power of x to be 2

Step-by-step explanation:

For

Y=- x+4. Y= 1

Y=x-2. 1= x-2

2y =2. 1+2= x

Y= 1. 3= x

For

Y= x+3. 1= x

Y= 3x+1. Y= 3+1

0= 2x-2. Y= 4

2= 2x

1= x

Y= x²+3x-18

For -5

First difference

25-15= 10

Second difference

10-18= -8

For -4

First difference

16-12= 4

Second difference

4-18= -14

For -3

First difference

9-9= 0

Second difference

0-18 = -18

For -2

First difference

4-6= -2

Second difference

-2-18= -20

For -1

First difference

1-3 = -2

Second difference

-2-18 = -20

For 0

First difference

0+0 = 0

Second difference

0 -18= -18

The relation ia a quadratic relation because of the highest Power of x to be 2

Answer:

x=30

Step-by-step explanation:

2x=y-x

3x=y

2y=180

y=90

x=30.