X -2, -1, 0, 1, 2 Y 5, 2, 1, 2, 5 I want to confirm this is a Linear function

Answers

Answer 1

Since the slopes between all pairs of points are not equal, therefore the set of points X -2, -1, 0, 1, 2 Y 5, 2, 1, 2, 5 does not represent a linear function.

What is linear function?

A linear function is a mathematical equation that, when graphed, forms a straight line. It can be written in the form of y = mx + b, where x and y are variables, m is the slope of the line, and b is the y-intercept (the point where the line intersects with the y-axis)

To check if the given set of points represent a linear function, we can calculate the slope between any two points and check if the slope is constant for all pairs of points.

Using the points (-2, 5) and (2, 5), we get:

Slope = (y2 - y1) / (x2 - x1)

= (5 - 5) / (2 - (-2))

= 0 / 4

= 0

Using the points (-1, 2) and (1, 2), we get:

Slope = (y2 - y1) / (x2 - x1)

= (2 - 2) / (1 - (-1))

= 0 / 2

= 0

Using the points (0, 1) and (2, 5), we get:

Slope = (y2 - y1) / (x2 - x1)

= (5 - 1) / (2 - 0)

= 4 / 2

= 2

Using the points (-2, 5) and (0, 1), we get:

Slope = (y2 - y1) / (x2 - x1)

= (1 - 5) / (0 - (-2))

= -4 / 2

= -2

Using the points (-1, 2) and (0, 1), we get:

Slope = (y2 - y1) / (x2 - x1)

= (1 - 2) / (0 - (-1))

= -1 / 1

= -1

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Related Questions

What is the rental cost? Step by step.

What is the rental cost? Step by step.

Answers

The rental cost in dollars per square foot is $11,00

What is the rental cost in dollars per square foot?

Cost of renting 1.250 square feet = $13, 750 per month

Rental cost per square foot = Total renting cost / total renting area

= $13, 750 per month / 1.250 square feet

= $11,000

Hence, $11,000 is the rental cost in dollars per square foot.

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Brainliest if correct

Brainliest if correct

Answers

Answer:

v = 176

Step-by-step explanation:

Since a fraction is essentially the same thing as dividing one number by another, we can multiply 44 by 4, the denominator of the fraction we are finding the numerator for, and get 176. This fraction is already in negative form, so we don't need to do anything else.

Find the reference angle

Find the reference angle

Answers

The reference angles of -320 is 40 degrees and the reference angle of 19π/12 is 5π/12

Finding the reference angles

From the question, we have the following parameters that can be used in our computation:

Angle = -320

The reference angle is caculated as

Reference = 360 + Angle

So, we have

Reference = 360 - 320

Evaluate

Reference = 40

For the other angle, we have

θ = 19π/12

The above angle is in the fourth quadrant

So, we subtract it from 2π to calculate the reference angle

Using the above as a guide, we have the following:

Reference angle = 2π - 19π/12

Evaluate the difference

Reference angle = 5π/12

Hence, the reference angle is 5π/12

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Find the area of the shape.
Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.
units^2
2

Answers

The area of the given shape which is a sector of the circle is 3.14 sq.units.

What is a sector of a circle?

An area of a circle that is contained within its two radii and the arc that connects them is called a sector. A semicircle, which represents one-half of a circle, is the most typical sector of a circle.

Given a sector of a circle.

The radius of the circle  = 2

Given π = 3.14

Area of circle = πr²

Area of sector  = ( θ / 360° ) *  πr²

where θ =  sector angle

For the given shape, sector angle = 90°

Area of sector = (90°/360°) × 3.14 × 2² = (1/4) × 3.14 × 4 = 3.14

Therefore the area of the given sector of the circle is 3.14 sq.units.

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Find the area of the shape.Either enter an exact answer in terms of \pipi or use 3.143.143, point, 14

If -5(x+8) =-25, then x=-3

Answers

Answer:

Correct!

Step-by-step explanation:

-5(x+8)=-25

x+8=5

x=-3

Answer:

here, -5(x+8)=-25

or, -5x +(-40)= -25

or, -5x=-25+40

or, x= 15/-5

therefore the value of x is -3....ans..

hope u understood..

Video Example EXAMPLE 5 Where is the function f(x) = |x| differentiable? SOLUTION If x > 0, then |x| = and we can choose h small enough that x + h > 0 and hence |x + h| = . Therefore, for x > 0 we have

Answers

Answer:

Step-by-step explanation:

We say that a function is differentiable if it's derivative exists and it is continous over the domain of the original function. Recall that the function |x| is given as |x| = x if \(x\geq 0\) and |x|=-x if x<0. In both cases, we have either the function x or -x, which are one-degree polynomials. So, we can find easily their derivatives. So if f(x) = |x|. Then, we have that

\(f'(x) = (x)' = 1 \text{if } x\geq 0\)

\(f'(x) = (-x)' = -1 \text{if } x<0\)

We should check what happens x=0, since that is the point where the definition of f changes. We can check that

\(\lim_{x\to 0^+} f'(x) = 1\) and

\(\lim_{x\to 0^-} f'(x) = -1\)

since this limits are not equal, the derivative is not continous at x=0. Hence, the derivative doesn't exist at x=0.

In this case, we say that |x| is differentiable at any x different from 0.

An insurance company checks police records on 582 accidents selected at random and notes that teenagers were at the wheel in 91 of them. Which is a correct 90% confidence interval for the proportion of all auto accidents that involve teenage drivers

Answers

Answer:

The 90% confidence interval is  \(0.1316 <  p <  0.1812\)

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  582

   The number of teenagers at the wheel is k = 91

Generally the sample proportion is mathematically represented as

          \(\^ p = \frac{k}{n}\)

=>       \(\^ p = \frac{91}{582}\)

=>      \(\^ p = 0.1564\)

From the question we are told the confidence level is  90% , hence the level of significance is    

      \(\alpha = (100 - 90 ) \%\)

=>   \(\alpha = 0.10\)

Generally from the normal distribution table the critical value  of  \(\frac{\alpha }{2}\) is  

   \(Z_{\frac{\alpha }{2} } =  1.645\)

Generally the margin of error is mathematically represented as  

     \(E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} } \)

=>  \(E =  1.645 * \sqrt{\frac{0.1564  (1- 0.1564)}{582} } \)

=>  \(E =  0.0248 \)

Generally 95% confidence interval is mathematically represented as  

      \(\^ p -E <  p <  \^ p +E\)

=>   \(0.1564  -0.0248 <  p <  0.1564  + 0.0248\)

=>   \(0.1316 <  p <  0.1812\)

25) Find the measure of the side MN.

A) 17.1
B) 18.1
C) 19.1

25) Find the measure of the side MN.A) 17.1B) 18.1C) 19.1

Answers

The measure of the side MN is 19.1.

What are trigonometric functions?

In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.

The different trigonometric identities are expressed as:

cosine, tangent, cotangent, cosecant, secant, and sine

From the information given, we have that:

The opposite side of the triangle is MNThe adjacent side is 11ft

Using the tangent identity:

\(\text{tan} \ \theta = \dfrac{\text{opposite}}{\text{adjacent}}\)

Substitute the values

\(\text{tan}(60) =\dfrac{\text{MN}}{11}\)

Cross multiply the values, we have:

\(\text{MN} = \sf 1.73(11)\)

\(\text{MN} = 19. 05 \thickapprox\bold{\underline{19.1 \ ft}}\)

Hence, the measure of the side MN is 19.1.

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Barb’s Grandma is always creating math problems for her to solve. In one problem she gave Barb a store receipt that listed 72 identical items, each the same price, for a total cost of $*67.9* Barb’s grandma covered the first and last digits of the total price on the receipt with stars. Determine the value of the digits that Barb’s Grandma covered.

Answers

9514 1404 393

Answer:

  367.92

Step-by-step explanation:

72 = 9·8

In order for the total cost to be divisible by both 8 and 9, it must meet a couple of requirements:

The sum of the digits must be divisible by 9. The last three digits must be divisible by 8.

In order for the sum of digits to be divisible by 9, the first and last digits must total 5 or 14. (The total of existing digits is 22. The sum needs to be 27 or 36.)

In order for the last three digits to be divisible by 8, the last digit must be 2*. So, the first digit must be 5-2=3.

The first digit is 3; the last digit is 2.

The total cost is 367.92. Each item price is 367.92/72 = $5.11.

_____

* 790/8 = 98.75, so (790 + 2)/8 will be 99. 792 is the only number starting with 79 that is divisible by 8.

BRAINLIEST!!!
YOU HAVE 5 MINUTES!!!!
Design an easy do-it-yourself compost bin that can be put (exnfe ffpao)
together at home. You can describe it, draw and label it, or both!
Include the following in your design:
• drawing or description of design
• materials used for the bin
• size of the bin
• substances used to fill it
• household items that can go in it
• how long it takes before it is ready
• how you use the compost
2)
Compost bin design: Add these household items to
your compost bin:
Compost is ready to use in this
much time:
Use your compost this way:

Answers

Designing an easy do-it-yourself compost bin:

Drawing and Description:

The compost bin can be a simple structure made of wood or wire mesh. It consists of four sides, a bottom, and a removable lid. The sides and bottom are connected securely to form a rectangular shape, while the lid allows for easy access to the contents inside.

The bin can be placed directly on the ground or on a solid surface, depending on personal preference.

Materials Used:

Wood or wire mesh (depending on preference)

Nails or screws to assemble the structure

Size of the Bin:

The size of the bin can vary based on the available space and the amount of compostable materials you generate. A suitable size for a home compost bin could be approximately 3 feet wide, 3 feet deep, and 3 feet tall.

Substances Used to Fill It:

To fill the compost bin, you would need a mix of "green" and "brown" materials. "Green" materials include fruit and vegetable scraps, coffee grounds, tea leaves, grass clippings, and plant trimmings. "Brown" materials consist of dry leaves, shredded newspaper, cardboard, and small twigs.

Household Items That Can Go in It:

You can add a variety of household items to the compost bin, such as fruit and vegetable peels, eggshells, coffee grounds, tea bags, yard waste (leaves, grass clippings, plant trimmings), shredded paper, cardboard, and natural fibers (like cotton or wool scraps).

Time for Compost to Be Ready:

The time it takes for the compost to be ready varies depending on factors like temperature, moisture, and the type of materials used. Generally, it takes about 2 to 6 months for compost to fully decompose and become ready to use.

Using the Compost:

Once the compost has broken down into a dark, crumbly, and earthy material, it is ready to use. You can spread it in your garden beds or pots as a nutrient-rich soil amendment. It improves soil structure, retains moisture, and provides essential nutrients for plants' growth.

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The Booster Club has a goal of raising at least $300. The Club has already raised $175. The Booster Club is
sponsoring a pancake breakfast and charging $3.00 per ticket.
What inequality would represent the number of tickets (t) that the Booster Club must sell to meet its goal?

Answers

Answer:

 

You have got

to start thinking bee, my friend.

 

- Thinking bee!

- Me?

 

Hold it. Let's just stop

for a second. Hold it.

 

I'm sorry. I'm sorry, everyone.

Oan we stop here?

 

I'm not making a major life decision

during a production number!

 

All right. Take ten, everybody.

Wrap it up, guys.

 

Step-by-step explanation:

 

You have got

to start thinking bee, my friend.

 

- Thinking bee!

- Me?

 

Hold it. Let's just stop

for a second. Hold it.

 

I'm sorry. I'm sorry, everyone.

Oan we stop here?

 

I'm not making a major life decision

during a production number!

 

All right. Take ten, everybody.

Wrap it up, guys.

 

175+3t≥300 is the inequality would represent the number of tickets (t) that the Booster Club must sell to meet its goal

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

Given that The Booster Club has a goal of raising at least $300.

The Club has already raised $175

The Booster Club is sponsoring a pancake breakfast and charging $3.00 per ticket.

175+3t≥300

One hundred seventy five plus three times t greater than or equal to three hundred.

We have used greater than or equal to in inequality because in data given atleast.

Hence, 175+3t≥300 is the inequality would represent the number of tickets (t) that the Booster Club must sell to meet its goal

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Find the axis of symmetry:
Picture is below.

Find the axis of symmetry:Picture is below.

Answers

Answer:

x = -3

Step-by-step explanation:

Axis of symmetry:

Axis of symmetry is the vertical line that divides the parabola into two equal halves and it passes through the vertex of the parabola.

From the graph, Vertex (-3, 4)

Axis of symmetry:  x = -3


Can anyone help with condensing this?

Can anyone help with condensing this?

Answers

Answer:

log 16x^7.

Step-by-step explanation:

log 4 + 2 log 2 + 7 log x

= log4 + log 2^2 + log x^7

= log (4*4*x^7)

= log 16x^7.

Leo has 2 5/8 ounces of sunblock.
He uses one third of an ounce at
the beach. How much does he
have left?

Answers

Answer:

2 7/24

Step-by-step explanation:

Answer:

Step-by-step explanation: 6

Andrei, Amit and Andrew were each asked to factor the term 20x^620x
6
20, x, start superscript, 6, end superscript as the product of two monomials. Their responses are shown below.
Andrei Amit Andrew
20x^6=(2x)(10x^5)20x
6
=(2x)(10x
5
)20, x, start superscript, 6, end superscript, equals, left parenthesis, 2, x, right parenthesis, left parenthesis, 10, x, start superscript, 5, end superscript, right parenthesis 20x^6=(4x^3)(5x^3)20x
6
=(4x
3
)(5x
3
)20, x, start superscript, 6, end superscript, equals, left parenthesis, 4, x, cubed, right parenthesis, left parenthesis, 5, x, cubed, right parenthesis 20x^6=(20x^2)(x^3)20x
6
=(20x
2
)(x
3
)20, x, start superscript, 6, end superscript, equals, left parenthesis, 20, x, squared, right parenthesis, left parenthesis, x, cubed, right parenthesis
1) Which of the students factored 20x^620x
6
20, x, start superscript, 6, end superscript correctly?
Choose all answers that apply:
Choose all answers that apply:
(Choice A) Andrei
A
Andrei
(Choice B) Amit
B
Amit
(Choice C) Andrew
C
Andrew
(Choice D) None of the above
D
None of the above

Answers

Based on the given responses, the student who factored 20x^6 = (2x)(10x^5) correctly is Andrei. Therefore, the correct answer is (Choice A) Andrei.

Among the given responses, the student who factored 20x^6 = 20, x to the power of 6 correctly is Andrei. Andrei's factorization is (2x)(10x^5), which correctly represents the original term 20x^6. Therefore, the correct answer is (Choice A) Andrei.

Amit's factorization is (4x^3)(5x^3), which is incorrect because it breaks down the term into two factors with the same exponent, while the original term has an exponent of 6.

Andrew's factorization is (20x^2)(x^3), which is also incorrect as it does not accurately represent the original term 20x^6.

Hence, the only student who correctly factored 20x^6 = 20, x to the power of 6 is Andrei.

The right answer is A. Andrei who factored 20x^6 = (2x)(10x^5) correctly.

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1. If you deposit $4350 at 2.32% interest, compounded continuously, what would your ending
balance be to the nearest cent after 6 years?

Answers

Answer:

$4999.69

Step-by-step explanation:

F = Pe^(rt)

F = $4350 * e^(0.0232 * 6)

F = $4999.69

What should be added to
\( \frac{17}{24} \)
get
\( \frac{ - 5}{12} \)

Answers

Answer:

See the below process

Step-by-step explanation:

let the Unknown value be x.

Now

\( \frac{17}{24} + x = \frac{ - 5}{12} \)

\(x = \frac{ - 5}{12} - \frac{17}{24}\)

Taking LCM

\(x = \frac{ - 10 - 17}{24} \)

\(x = \frac{ - 27}{24} \\ = \frac{8}{9} \)

we should add 8/9 to 17/24 to get -5/12

I hope it helped you

Please Mark me the brainliest

Help !! Pls :3:’dnmdnsnms

Help !! Pls :3:dnmdnsnms

Answers

The congruent reason for the triangles is (b) HL theorem

How to determine the congruent statement?

From the question, we have the following parameters that can be used in our computation:

Triangles = FGH and JHK

The SSS similarity theorem implies that the corresponding sides of the two triangles in question are not just similar, but they are also congruent

From the question, we can see that the following corresponding sides on the triangles:

Sides GH and HK

Sides FH and JK

These parameters are given in reasons (2) and (3) and it implies that these sides are congruent sides

For the triangle to be congruent by SSS, the following sides must also be congruent

GH must be congruent to HK

The above statement is true because point H is the midpoint of line GK

This is indicated in reason (2)

Hence, the congruent statement is SSS.

However, we can also make use of the HL theorem in (B)

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What’s the correct answer answer asap for brainlist

Whats the correct answer answer asap for brainlist

Answers

Answer:

B

Step-by-step explanation:

Musicologists generally define the Classical period of music as ranging from 1730 to 1820. Classical era music followed the late Baroque period of music.

I have sons but no daughter ,each of my sons has twice as many brothers as he has children . each of my sons has same no of children each of my grand children has many cousins as uncle. how many grand children do I have ?

Answers

Answer:

Step-by-step explanation:

keeping track of family relations can be difficult. If Edna marries your mother’s uncle Charlie, what should you call her? If your father’s cousin’s daughter just had a baby boy, how should you two be introduced? Who is your “great great aunt”, and how can you find your “first cousin twice removed”? Fortunately, a bit of mathematical logic can clarify who should be called what, and why – and even measure the degree of genetic similarity between different relatives.

3.6(5x4)divided 3+5.0=

Answers

Answer:

29 Hope this helps

Step-by-step explanation:

"Given expression is :  

First we will simplify both numerator and denominator separately using order of operations. So....

Thus the expression.... "

-Sicista

Point M is the midpoint of AB AM = 3x + 3, and AB = 8x6.
What is the length of AM

Answers

AM = 1/2 AB = 1/2 x 48 = 24

[Since 3x + 3 = 24 then x = 7 but this was not asked for]

How many solutions does this equation have? 6x - 8 = -4x - 12*
No Solution
Infinitely Many Solutions
1 Solution

Answers

Answer:

1 solution

Step-by-step explanation:

Your ability to borrow money at lower rates improves as
OA. you save more
OB. you earn more
OC. your debt ratio increases
OD. your credit score increases

Answers

Your ability to borrow money at lower rates improves as your credit score increases. Option D.

What is a credit score?

Your ability to borrow money at lower rates improves as your credit score increases.

A higher credit score indicates to lenders that you have a strong credit history, responsible financial behavior, and a lower risk of defaulting on loans.

Lenders view borrowers with higher credit scores as more reliable and trustworthy, making them more likely to offer lower interest rates and better loan terms.

While saving more and earning more can indirectly contribute to improving your credit score by positively impacting your financial stability and ability to manage debt, they are not direct factors that lenders consider when determining interest rates.

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Divide. −3.52−2.2 What is the quotient

Answers

The quotient of - 3.32 / - 2.2 is 8 ÷5.

What is the quotient?

Given fraction:

-3.32 / -2.2

First step is to re-write the given fraction which is - 3.52 / - 2.2

3.52 / 2.2

Second step is to convert the decimal to fraction

352 ÷ 100 / 22 ÷10

Third step is to reduce the fraction

reducing 352/100

=(2^5 × 11)/(2^2 × 5^2)

= [(2^5 × 11) ÷ 2^2] / [(2^2 × 5^2) ÷ 2^2]

= (2^3 × 11)/5²

= 88/25

Reducing 22/10

Divide the numerator and denominator by the greatest common divisor

= 22 ÷ 2 / 10 ÷ 2

= 11 /5

Now let determine  or find the quotient

88 ÷ 25 × 11 ÷ 5

= 8 ÷ 5

Therefore we can conclude that 8 ÷ 5 is the quotient.

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rogress bar may be uneven because questions can be worth more or less (including zero) depending on your
Which of the following equations has the solution x = all real numbers?
O. 5(3x) + 6x = 3x + 15 + 2x
5(3x).+ 7x = 3x + 15 - x
5(3x) + 7x = 3x + 10 - x
5(3x) + 7x = x + 15 - 3x

Answers

The equations that has the solution x = all real numbers is 5(3x)+ 7x = 3x + 15 - x and 5(3x) + 7x = 3x + 10 - x,

What is  meant  equation?

Algebraically speaking, an equation is a statement that shows the equality of two mathematical expressions. For instance, the two equations 3x + 5 and 14, which are separated by the 'equal' sign, make up the equation 3x + 5 = 14.

A formula that expresses the connection between two expressions on each side of a sign. Typically, it has a single variable and an equal sign.

Here given equations,

5(3x) + 6x = 3x + 15 + 2x

15x + 6x = 3x + 15 + 2x

15 x + 6x - 3x -2x = 15

16 x = 15

x = 15/16

5(3x).+ 7x = 3x + 15 - x

15 x + 7x = 3x + 15 - x

15 x + 7x - 3x + x = 15

22x - 3x + x = 15

20 x = 15

x = 15/20

x = 3/4

5(3x) + 7x = 3x + 10 - x

15x + 7x - 3x + x = 10

20x = 10

x = 10/20

x = 1/2

5(3x) + 7x = x + 15 - 3x

15x +7x - x + 3x = 15

24x = 15

x = 15/24

x = 5/8

Therefore the equations that has the solution x = all real numbers are :

5(3x).+ 7x = 3x + 15 - x and 5(3x) + 7x = 3x + 10 - x .

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The table shows the hourly wages (in dollars) of employees after they have worked at a company for x years. Use the linear regression feature
on a graphing calculator to find an equation of the line of best fit for the data. Round each value in your equation to the nearest hundredth.
Then use your equation to estimate the hourly wage of an employee who has worked at the company for 12 years.
Years, x Hourly wage (dollars per hour), y
1
$8.75
5
$10.50
3
$9.25
7
$11.25
The line of best fit is y =

The aproxímate hourly wage of a person who has worked at the company for 12 years is $___ per hour

Answers

Answer:

y= 0.5x + 8.2

$13.6 per hour

Step-by-step explanation:

(Is it weird that I had the same exact question? Maybe not. But I also found another person with the same question as me. It was a different question though. This is probably too late. But I'm just gonna try to answer it for anyone who needs it.

"Linear regression" is just a fancy word for scatter plots. Scatter plots take place in graphs. The dots or plots are scattered and the way they are scattered means something. If it's going down, it's negative, up it's positive, and if it's scattered, it has no corrolation.

Also, you should have learned this in 9th grade. So, check your notes.

If you don't have it, WRITE IT!!!

To find it in your calculator:

1. Go to "Lists and Spreadsheets"

2. Rename the first column "x" and the second on "y"

3. Write all of your numbers in the right column

1, 5, 3, 7 under the "x"

8.67, 10.50, 9.58, 11.41 under the "y"

4. Move your cursor to an empty cell

4. Click: "MENU" #4 #1 #3

5. Rename the correct rows "x" and "y" and press enter

6. Now you can find "m" and "b"

7. Then move your cursor to an empty cell and click "doc" "insert" #7

8. Find the x-axis and find "x"

9. Find the y-axis and find "y"

10. Now press "MENU" #4 #6 #1

And you found your y=mx+b: y=0.5x+8.2

Now, how much money per hour.

So you've found your m and b but now you have to:

1. Replace y with 15 and solve it

15=0.5x+8.2

-8.2       -8.2

6.8=0.5x

Divide 0.5 on both sides

6.8/0.5=13.6

13.6=x

$13.6 per hour

find the difference 67 -43​

Answers

Answer:

Here's how to solve

Step-by-step explanation:

67-43.

7-3=4

6-4=2

so 24 and to check if it is correct substitute 24 in the equation

24+43= 67

24 is your answer

Answer:

\(67 - 43 \\ \\ = 24 \\ then \\ 24 + 43 \\ = 67 \\ now \\ \)

Which equations are true for x = –2 and x = 2? Select two options x2 – 4 = 0 x2 = –4 3x2 + 12 = 0 4x2 = 16 2(x – 2)2 = 0

Answers

The equations that are true for x = -2 and x = 2 are x² + 4 = 0 and 4x² = 16. So, the correct option is A) and D).

To determine which equations are true for x = -2 and x = 2, we simply substitute these values into each equation and check if the equation is true or not. Here are the results

x² - 4 = 0

Substituting x = -2 gives (-2)² - 4 = 0, which is true. Substituting x = 2 gives 2² - 4 = 0, which is also true. Therefore, this equation is true for both x = -2 and x = 2.

x² = -4

Substituting x = -2 gives (-2)² = -4, which is not true. Substituting x = 2 gives 2² = -4, which is also not true. Therefore, this equation is not true for either x = -2 or x = 2.

3x² + 12 = 0

Substituting x = -2 gives 3(-2)² + 12 = 0, which is true. Substituting x = 2 gives 3(2)² + 12 = 24, which is not equal to zero. Therefore, this equation is true for x = -2 but not for x = 2.

4x² = 16

Substituting x = -2 gives 4(-2)² = 16, which is true. Substituting x = 2 gives 4(2)² = 16, which is also true. Therefore, this equation is true for both x = -2 and x = 2.

2(x - 2)² = 0

Substituting x = -2 gives 2(-2 - 2)² = 0, which is true. Substituting x = 2 gives 2(2 - 2)² = 0, which is also true. Therefore, this equation is true for both x = -2 and x = 2.

Therefore, the two equations that are true for both x = -2 and x = 2 are x² - 4 = 0 and 4x² = 16. So, the correct answer is A) and D).

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salesperson earns $345 for selling $2300 in merchendice find the commison rate

Answers

Answer:

The commission rate is 15%

Step-by-step explanation:

commission = commission rate x sales

where the commission rate is expressed as a decimal.

In this case, the salesperson earned a commission of $345 for selling $2,300 in merchandise. Therefore, we have:

345 = commission rate x 2300

To solve for the commission rate, we can divide both sides by 2300:

commission rate = 345/2300

Simplifying this expression, we get:

commission rate = 0.15

So, the commission rate is 15%

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