Solve the system below by substitution.
6x - y = - 23
2x + 5y = -13

Answer:

It's not a function

Step-by-step explanation:

Due to the fact that at one x point there are multiple y values so this cannot be a function. The graph also does not pass the vertical line test, therefore it is not a function.

1. The graph is not represent a function.

2. The table shown in figure is represent a function.

What is Function?

A relation between a set of inputs having one output each is called a function.

Given that;

The graph is shown in  shown in figure.

And, In the table;

Value's of x are - 2, 1 , 0 , 2

And values of y are 5, 4 3 , 4

Now,

To check the graph is the function or not, we use vertical line test.

If the vertical line draw parallel to y - axis and it cuts more than one points in the graph, then the graph is not a function.

Here, When we draw a vertical line which is parallel to y - axis then it cuts more than one point, so it is not a function.

Thus, The graph is not represent a function.

2. In the table;

Value's of x (input) are - 2, 1, 0, 2.

And values of y (output) are 5, 4, 3, 4.

Clearly, Every input have exactly one output.

So, By definition of function;

The table shown in figure is represent a function.

Therefore,

1. The graph is not represent a function.

2. The table shown in figure is represent a function.

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Answer: it looks like a commutative expression

Step-by-step explanation: im pretty sure im wrong, goodnight

Answer:

positive 42

Step-by-step explanation:

because to negatives make a positive and then you would multiply the two by eachother because they are directly beside eachother and then you do 7*6 which equals to 42 I really hoped this helped you

Answer:

b(x) = -2X² + 19X + 114

Step-by-step explanation:

b(x) = total revenue generated per day

total revenue formula ⇒ b(x) = price x quantity

price = $3 current price + 0.5X price increase = 3 + 0.5X

quantity = 38 current quantity sold - 4 books per X = 38 - 4X

b(x) = (3 + 0.5X) · (38 - 4X)

b(x) = 114 -12X + 19X - 2X²

b(x) = -2X² + 19X + 114

Answer:

There are 6 people in the Fram family

Step-by-step explanation:

19.8 ÷ 3.3 = 6

Hope this helped!!

Answer:

19.8

3.3

19.8/3.3

6

Step-by-step explanation:

got it right

Answer: Yes?

Step-by-step explanation:

15% of 1600 is 240 so i think so

Answer:

102 cm

Step-by-step explanation:

45 + 45 = 90

6 + 6 = 12

90 + 12 = 102

Answer:

Examples of such numbers are;

59,995

60,001

58,754

Step-by-step explanation:

Here, we want to write three numbers which when rounded to the nearest ten thousand is 60,000

We can suggest the following;

59,995

60,001

58,754

Answer:

rate of interest is 6 percent per annum.

Step-by-step explanation:

Formula for simple interest is given

SI = p*r*t/100

where

SI is simple interest

p is principal

r is the rate of interest

t is the time

_______________________________

Given

p = 6400

SI = 768

t = 2 years

r we have to find

lest sue the above formula and plug the given value in it

768 = 6400*r*2/100

=> 768 = 128r

=> r = 768/128 = 6

Thus, r = 6%

thus, rate of interest is 6 percent per annum.

Answer:

2.65

Step-by-step explanation:

21.20 ÷ 8 = 2.65

Answer:

true

Step-by-step explanation:

Answer:

Step-by-step explanation:

-16x+13+-20x+23=180

-36x+36=180

-36x=144

X=-4

Then put -4 in -16(-4) + 13 = 77

Answer is 77

The angle LMP will be 75.22° and the angle NMP will be  104.77°.

An angle is a geometry in plane geometry that is created by 2 rays or lines that have an identical terminus.

The identical endpoint of the two rays—known as the vertex—is referenced as an angle's sides.

In another word, the angle is the measurement of the angular distance for example for linear motion we have a meter inch but for angular rotation, we don't have the measurement so the angle is useful to measure the angular rotation.

∠LMN = ∠ LMP + ∠NMP

Since ∠LMN = 180°

So,

∠ LMP + ∠NMP = 180

-16x + 13 - 20x + 23 = 180

-36x + 40 = 180

36x = -140

x = -3.88

So,

∠ LMP = -16(-3.88) + 13 = 75.22°

So,

∠NMP = 180 - 75.22 = 104.77°

Hence "The angle LMP will be 75.22° and the angle NMP will be  104.77°".

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Answer:

-13/9 = x

Step-by-step explanation:

8/9 = x + 1/3(7)

~Simplify right side

8/9 = x + 7/3

~Subtract 7/3 to both sides

-13/9 = x

Best of Luck!

x= -13/9

1/3(7) = 1/3 x 7

1/3(7) = 7/3 = 2 1/3

Answer:

$163

Step-by-step explanation:

Bob worked 26 hours and earn $7 per hour. Multiply 26 with 7:

26 x 7 = 182

Bob made a total of $182 last month.

Bob then spent $19. Subtract 19 from the total earned:

182 - 19 = 163

Bob has $163 left.

~

Answer:

He has $163 dollars left

Step-by-step explanation:

Because first we needed to find out how much did he make in 26 hours, 29 (hours) x $7 (per hour) = $182

Then he spent $19, $182 (how much he made in 26 hours) - $19 (how much he spent) = $163

Answer:

- 12

Step-by-step explanation:

There is a common difference between consecutive terms in the sequence.

9 - 16 = 2 - 9 = - 5 - 2 = - 7

Thus to find the next term subtract 7 from the previous term, that is

- 5 - 7 = - 12

Answer:

d

Step-by-step explanation:

Answer:

54

Step-by-step explanation:

Absolute value is the number without the negative. Next time just remove the negative and you're all set!

Answer:

smart boy/girl !

Step-by-step explanation:

1/2

Answer:1/2

explanation:I did the test but I got the answer wrong because I thought it was 7 and 1/5 , but it’s 1/2

Answer:

i think its the third one i could be wrong

Step-by-step explanation:

I think its the last one

Answer: Coterminal Angles are angles who share the same initial side and terminal sides. Finding coterminal angles is as simple as adding or subtracting 360° or 2π to each angle, depending on whether the given angle is in degrees or radians. There are an infinite number of coterminal angles that can be found?

Step-by-step explanation:

Answer:

300

Step-by-step explanation:

Answer:

-3x – 4y = -4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Hi so basically you just convert the inches to decimals so

0.5 x 0.5 x 0.25 = 0.0625

Use a calculator to convert 0.0625 into fraction which is [tex]\frac{1}{16}[/tex]

Multiply [tex]\frac{1}{4}[/tex] by 3 = [tex]\frac{1}{64}[/tex]

Then multiply [tex]\frac{1}{16}[/tex] by [tex]\frac{1}{64}[/tex] = 4

Soo that was probably very confusing, but I hope it helps! :)

Plz click the Thanks button, I rrly appreciate it!

Answer:

Step-by-step explanation:

We assume in this context that a "1/4 unit cube" is a cube that is 1/4 unit on a side. When the "unit" is "inches", then the "1/4 unit cube" is a cube that is 1/4 inch on a side.

It should not take too much thought to realize that a dimension that is 1/2 = 2/4 inches will be 2 cubes long. A dimension that is 1/4 inch will be 1 cube long.

Then the 1/2 by 1/2 by 1/4 prism will have dimensions in "cubes" of ...

  2 cubes × 2 cubes × 1 cube

As with any rectangular prism volume calculation, the volume is the product of the dimensions:

  V = LWH = (2)(1)(2) = 4 . . . cubes

_____

For this prism, it should not be too difficult to see that if you stack 2 smaller cubes on top of two smaller cubes, the overall dimensions of that will be 1/2 inch wide by 1/2 inch high by 1/4 inch deep.

_____

Additional comment

Which dimensions you call length, width, and height are irrelevant, as each is interchangeable with any other in the formula for volume. Here, I have elected to call height the vertical dimension, length the left-right horizontal dimension, and width the front-back dimension. You are welcome to choose an assignment of names to dimensions that suits your taste (or that of your grader).

Answer:

x=1/25

Step-by-step explanation:

Answer: -25

Step-by-step explanation:

You would have to divide both sides by 3/5 which is the same as multiplying by 5/3.

x = -15*5/3

x = -75/3 = -25

Answer:

5 inches

Step-by-step explanation:

Given that :

There are two pieces of ribbon with length:

15 inches and 20 inches

To cut ribbon into equal sizes with no ribbons left ; the greatest length in inches of the ribbon would be :

Calculate the greatest common factor of both lengths : 15 inches and 20 inches

____15___20

_5__ 3___4

OR

Find the factors of 15 and 20 and pick the greatest common to both

15 : 1, 3, 5, 15

20 : 1, 2, 4, 5, 10, 20

Greatest factor common to both = 5

Hence the greatest length she can cut the ribbons into without any leftover is 5 inches

Answer:

B

Step-by-step explanation:

(2x² - 3x + 8) - (3x² + 7x - 2)

~Distribute the negative sign

2x² - 3x + 8 - 3x² - 7x + 2

~Combine like terms

-x² - 10x + 10

Best of Luck!

Answer:

2x + 200 = 6x + 120

Step-by-step explanation:

Super-Clean house cleaning company:  2x + 200

Power Bright: 6x + 120

Now, they have to be equal because we are trying to find the equation for total charges.

So, your equation would be 2x + 200 = 6x + 120.

Hope this helps!

Answer:

Step-by-step explanation:

Let the number of linear feet = x

Let the total cost = y

Condition One

y = 200 + 2x

Condition Two

y = 120 + 6x

Now you want the ys to be the same.

200 + 2x = 120 + 6x

PART A: 2.25

PART B: 14