which number line model represents the expression -2+ (- 7/2)

Answer:

x4+8x

Step-by-step explanation:

x2+x2=x4

2x+6x=8x

(-8)+8=0

You cant add x4 and 8x so thats your final answer

Answer: c

i’m pretty sure it’s c

Answer:

B

Step-by-step explanation:

15 rows with 7 cookies is just multiplying, 15*7, to get how many cookies that's in the tray. There's also 9 trays, so we multiply (15*7) by 9

Answer:

5(n-3)

Step-by-step explanation:

There would be parenthesis because you'd subtract three from the number first.

Hello! The correct answer is 1,052.79.

You may remember the rounding rule..0-4 goes down, 5-9 goes up..

✨ You underline the "8" in "1,052.785". ✨

We can see, the number behind it is "5", which means 8 goes up once.

**ONLY** the 8 goes up, everything stays.

⌨ Which makes it 1,052.79! ⌨

Therefore, your answer is 1,052.79, I hope this helps you.

✔ Please give me brainiest!! ✔

®

Answer:

[tex]r=4[/tex]

Step-by-step explanation:

We know that the slope of the line is -1.

We also know that the line passes through (-9, 3) and (-10, r).

We want to find the value of r.

First, let's figure out the equation of our line. We can use the point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

Where m is the slope and (x₁, y₁) is a point.

So, let's substitute -1 for m. Since we know the point (-9, 3), let's use this for (x₁, y₁).

Substitute:

[tex]y-(3)=-1(x-(-9))[/tex]

Simplify:

[tex]y-3=-(x+9)[/tex]

Distribute:

[tex]y-3=-x-9[/tex]

Add 3 to both sides. So, our equation is:

[tex]y=-x-6[/tex]

It passes through (-10, r) and we want to find the value of r. So, let's substitute -10 for x and r for y, since -10 is our x and r is our y. So:

[tex]r=-(-10)-6[/tex]

Evaluate for r. Distribute:

[tex]r=10-6[/tex]

Subtract:

[tex]r=4[/tex]

So, the value of r is 4.

And we're done!

Answer:

6 Gallons of Paint

Step-by-step explanation:

If you use a half gallon of paint to cover 84 square feet, how much could you paint with a full gallon? Lets figure it out:

[tex]\frac{1}{2} = 84[/tex]

multiply both sides by 2 so that the 1/2 gallon is now 1 gallon:

[tex]\frac{1}{2} * 2 = 84 * 2[/tex]

1 gallon = 168 square feet

now, how many gallons does it take to paint 932 square feet?

Divide 932 by 168:

[tex]\frac{932}{168} = 5.548[/tex]

Just like you cant buy 2.374 cheeseburgers, you cant buy 5.548 gallons of something so we round up and will have some paint left over once the job is done. So 6 gallons is the answer

The amount of gallons needed is 5.55gallons approximately

If Joel used a half-gallon of paint to cover 84 square feet of wall, this can be expressed using the equality sign as:

1/2 gallons = 84 square feet

In order to find the number of gallons for 932 square feet of wall to paint, we will write:

x = 932 square feet

Divide both expressions

1/2x = 84/932

2x = 932/84

2x = 11.09

x = 11.09/2

x = 5.55 gallons

This shows that the amount of gallons needed is 5.55gallons approximately

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Answer:

polygon B is just polygon B flipped to the side

Step-by-step explanation:

polygon B is just polygon B flipped to the side

Answer:

a

Step-by-step explanation:

AD=CD

hope this helped!

Answer: 2472

Step-by-step explanation: It is just 2744 minus 272

Answer:

2472 okay that is your answer, you just subtract 272 from 2744. you can use a calculator to solve of paper

Answer:

5

Step-by-step explanation:

2/4=y/10

=> 2x10=yx4

=> 20=yx4

=>y=5

Answer:

O-2(x+5)

Step-by-step explanation:

I have to much time on my hands

Answer:

-2x-10

Step-by-step explanation:

-5(x+2)+3x=

Distribute

-5x-10 +3x

Combine like terms

-2x-10

Step-by-step explanation:

The 16 possible permutations and their means are:

47, 47: μ = 47

47, 30: μ = 38.5

47, 28: μ = 37.5

47, 18: μ = 32.5

30, 47: μ = 38.5

30, 30: μ = 30

30, 28: μ = 29

30, 18: μ = 24

28, 47: μ = 37.5

28, 30: μ = 29

28, 28: μ = 28

28, 18: μ = 23

18, 47: μ = 32.5

18, 30: μ = 24

18, 28: μ = 23

18, 18: μ = 18

So the frequency distribution of the sample means is:

[tex]\left[\begin{array}{cc}Mean&Frequency\\18&1\\23&2\\24&2\\28&1\\29&2\\30&1\\32.5&2\\37.5&2\\38.5&2\\47&1\end{array}\right][/tex]

The mean of a dataset is the average value of the dataset.

The dataset is given as:

47, 30, 28 and 18

From the above dataset, we can see that the data elements are 4

The sample size is given as:

n = 2

So, the number of different samples is:

[tex]Samples = 4^2[/tex]

[tex]Samples = 16[/tex]

The 16 samples are: {(47,47), (47,30), (47,28), (47,18),(30,47), (30,30), (30,28), (30,18),(28,47), (28,30), (28,28), (28,18),(18,47), (18,30), (18,28), (18,18)}

The mean values of the above samples are: {47, 38.5, 37.5 , 32.5 , 38.5 , 30 , 29 , 24 , 37.5 , 29 , 28 , 23 , 32.5 , 24 , 23 , 18}

Rearrange in ascending order

18, 23, 23, 24, 24, 28, 29,29, 30, 32.5, 32.5, 37.5, 37.5, 38.5, 38.5, 47

So, the table of the sample means is:

Mean             Frequency

18                       1

23                      2

24                      2

28                      1

29                      2

30                      1

32.5                   2

37.5                   2

38.5                   2

47                       1

Total                 16

Read more about sample mean at:

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Answer:

Yes the both simplify into 3/4

Step-by-step explanation:

Answer: yes they are both 15 apart

Step-by-step explanation:

Answer:

Yes. The vertical line never touches the graph at more than one point at the same time.

Step-by-step explanation:

this is the plato and edmentum answer

(make sure this is the right question)

As the vertical line touches the graph of the equation y = 2x - 3 it is a function.

The set of ordered pairings (x, y) where f(x) = y makes up the graph of a function.

These pairs are Cartesian coordinates of points in two-dimensional space and so constitute a subset of this plane in the general case when f(x) are real values.

Given, An equation y = 2x - 3.

Now, If we draw a vertical line and it touches the graph at only one point

the equation is a function but if the vertical line touches the graph at more than two points the equation is not a function.

learn more about graphs here :

https://brainly.com/question/2288321

#SPJ2

Answer:

50

Step-by-step explanation:

62+(3·4)−24

62+12-24

Final Answer: 50

Answer:

50

Step-by-step explanation: :D

Answer:

To find the points, remember the definition of distance or difference.

First, the 5 is easy to find, is in the extreme right.

Now, the next number is 3.

The difference between 3 and 5 is:

3 - 5 =  - 2

This means that the place of the 3 will be 2 units at the left of the 5.

The next number is -2

The difference between -2 and 5 is:

-2 - 5 = -7

This means that the -2 is located 7 units at the left of the 5.

Below is an image of the located points in a number line.

Answer:

Option D.

Step-by-step explanation:

Convert each to a decimal.

pie + 8 = 11.14

5 and the square root of 20 = 22.36

10/ the square root of 3 = 5.77

Now put them in order from least to greatest.

10/ the square root of 3, pie + 8, 5 and the square root of 20.

Option D is your answer!

Answer:

33361022.5

Step-by-step explanation:

Answer:

n = 10

Step-by-step explanation:

=> 2(4 + n) = 28

=> 2(4) + 2(n) = 28

=> 8 + 2n = 28

=> 2n = 28 - 8

=> 2n = 20

=> n = 20/2

=> n = 10

Answer:

n = 10

Step-by-step explanation:

2(4 + n) = 28

Distribute:

(8 + 2n) = 28

Eliminate Parenthesis:

8 + 2n = 28

Cancel Out:

2n = 20

Divide:

n = 10

An exponential function gives a variable raised to the power of x, where the variable is a positive real number

Yes, [tex]\underline{f(x) = 3 ^{(2 \cdot x - 3)}}[/tex] is an exponential function

Reason:

An exponential function is a function that can be written in the form;

f(x) = eˣ

Where;

e = Euler's number, which is the number approximately 2.71828

In the general form, an exponential number is a number given in the form;

f(x) = a·bˣ

Where;

b = A positive real number

The given function; [tex]f(x) = 3 ^{(2 \cdot x - 3)} = \dfrac{3^{2\cdot x}}{3^3} = \dfrac{1}{27} \times 9^x[/tex] is an exponential function

Where;

Therefore, the correct response is; Yes, [tex]f(x) = 3 ^{(2 \cdot x - 3)}[/tex] is an exponential function

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Answer:

Its B (4.69 * 10^8)

Step-by-step explanation:

if u add them all together thats what you get I typed it into a calculator

Answer:

725

Step-by-step explanation:

use a CALCULATOR -_-

Answer:

725

Step-by-step explanation:

Answer:

Gloria's time was 2.5 minutes faster

Step-by-step explanation:

Answer:

49 x^2

Step-by-step explanation:

Simplify the following:

(7 x)^2

Hint: | Distribute exponents over products in (7 x)^2.

Multiply each exponent in 7 x by 2:

7^2 x^2

Hint: | Evaluate 7^2.

7^2 = 49:

Answer:  49 x^2

Answer:

$483.75

Step-by-step explanation:

32.25 x 15 = 483.75

If I'm wrong, please kill me ;-;

Answer:

The coordinates of Bodega is B(1,-2)

The coordinates of OWL Barbershop is O(3,-1)

Step-by-step explanation:

Coordinates of House H = (-3,-4)

Coordinates of Job J= (5,0)

His first stop is at the bodega to get something to eat. The bodega is exactly halfway between his house and the school.

Let B to represent the Bodega

Now to find coordinates of Bodega we will use use mid point formula since  bodega is exactly halfway between his house and the school.

[tex]x=\frac{x_1+x_2}{2} , y = \frac{y_1+y_2}{2}\\(x_1,y_1)=(-3,-4)\\(x_2,y_2)=(5,0)\\x=\frac{-3+5}{2} , y = \frac{-4+0}{2}\\x=1, y = -2[/tex]

So, The coordinates of Bodega is B(1,-2)

Now we are given that The OWL Barbershop location partitions the way from Wilfred’s house and job in the ratio 3:1.

Le O to represent OWL Barbershop.

We will use section formula

[tex]x=\frac{mx_2+nx_1}{m+n} , y =\frac{my_2+ny_1}{m+n}\\(x_1,y_1)=(-3,-4)\\(x_2,y_2)=(5,0)\\m:n=3:1\\x=\frac{3(5)+1(-3)}{3+1} , y =\frac{3(0)+1(-4)}{3+1}\\x=3,y=-1[/tex]

So, The coordinates of OWL Barbershop is O(3,-1)

Answer: There is no photo, I cannot see