Which expression is not equivalent to the other three? 2x 2 2x 3x – 8 4 7x – 2 –2 5x 2x – 4 8x – x – 6.

Answer:

5) (8,-5)

6) (-10,-10)

7) (-1,-3)

Step-by-step explanation:

5)

origin= (0,0)

0+8=8

0-5=-5

(8,-5)

6)

(-6,-8)

-6-4=-10

-8-2=-10

(-10,-10)

7)

(6,-8)

6-7=-1

-8+5=-3

(-1,-3)

I hope this helps! :D

pls give thx and brainliest if i’m right!

Answer:

this question is very hard

Step-by-step explanation:

Remi purchased approximately 150 pounds of pumpkins.

To find the number of pounds of pumpkins purchased by Remi, we can divide the total amount spent by the price per pound.

Let's assume that x represents the number of pounds of pumpkins purchased.

The total amount spent, $73.50, can be expressed as the product of the price per pound, $0.49, and the number of pounds purchased, x:

$73.50 = $0.49 × x

To solve for x, we divide both sides of the equation by $0.49:

x = $73.50 / $0.49 ≈ 150

Therefore, Remi purchased approximately 150 pounds of pumpkins.

By dividing the total amount spent by the price per pound, we found the quantity of pumpkins purchased.

In this case, Remi spent $73.50 and the price per pound was $0.49, resulting in the purchase of approximately 150 pounds of pumpkins. This information can be useful for budgeting, inventory management, and understanding consumer behavior at the local farm.

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The molar solubility of PbCl2 in pure water is 0.015 M at the given temperature.

For a sparingly soluble salt like PbCl2, the Ksp expression is:

PbCl2(s) ⇌ Pb2+(aq) + 2Cl-(aq)

And the Ksp value is given as 1.17×10^−5 at a certain temperature.

Let the molar solubility of PbCl2 be x mol/L. Then, the equilibrium concentrations of Pb2+ and Cl- ions can be expressed as x mol/L and 2x mol/L, respectively.

Substituting these concentrations into the Ksp expression, we get:

Ksp = [Pb2+][Cl-]^2

1.17×10^−5 = x*(2x)^2

1.17×10^−5 = 4x^3

x^3 = 2.93×10^−6

Taking the cube root of both sides, we get:

x = 0.015 M

Therefore, the molar solubility of PbCl2 in pure water is 0.015 M at the given temperature.

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Answer:

The normal force is the force that a surface makes on an object that lies on that surface.

As the book rest flat in the table, the force acting on the book will be the gravitational force. This force pulls down the book against the table, then the normal force will be opposite to this, then the direction of this force is upwards. Being more exact, the normal force always acts on the normal direction to a given surface, to find the normal of a surface, you need to find the plane of the surface, then any perpendicular line to that surface will be "normal" to the surface (and the normal direction points away from the surface) then if the book is resting on top of the table, the direction of the normal will be upwards..

Then the force that acts on the book is normal to the surface of the table,

Answer:

Answer is option d) 2

Step-by-step explanation:

\(given \: that \: x = 2 \: \: \: and \: \: \: y = 4 \\ value \: of \: \frac{2x + 3y}{4} - 2 \\ = \frac{2(2) + 3(4)}{4} - 2 \\ = \frac{4 + 12}{4} - 2 \\ = \frac{16}{4} - 2 \\ = 4 - 2 \\ = 2\)

HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

For the given expression (2x + 3y) ÷ 4 - 2, If x = 2 and y = 4, the value of expression is, 2

An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.

For example, 2x+3

Given that,

The expression, (2x + 3y)/4 - 2

The value of expression, when  x = 2 and y = 4

⇒ (2×2 + 3×4)/4 - 2

⇒  (4+12)/4 -2

⇒   16/4  - 2

⇒  2

Hence, the value of expression is 2

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Answer:

Step-by-step explanation:

It is below groung level

Answer: that if sombody falls you know where it leads... there DEATH

Step-by-step explanation:

Answer:

3645 when n =7 even no. of (n-1) makes the whole power positive

Answer:

16

Step-by-step explanation:

Draw a picture!

Length1 goes from (5, 2) to (10, 2)

since the y coordinate is the same

L1 = (10 - 5) = 5

Length2 goes from (5, 5) to (10, 5)

since the y coordinate is the same

L2 = (10 - 5) = 5

Width1 goes from (5, 2) to (5, 5)

since the x coordinate is the same

W1 = (5 - 2) = 3

Width2 goes from (10, 2) to (10, 5)

since the x coordinate is the same

W2 = (5 - 2) = 3

-----------------------

Perimeter

p = 5 + 5 + 3 + 3

p = 16

The perimeter of quadrilateral is 16 units.

A closed quadrilateral has four sides, four vertices, and four angles. It is a form of polygon. In order to create it, four non-collinear points are joined. Quadrilateral interior angle sums are always equal to 360 degrees.

Given coordinates,

(5,2), (10,2), (5,5), and (10,5)

let A, B, C, and D be the points of coordinates (5,2), (10,2), (5,5), and (10,5) respectively.

Length1 goes from (5, 2) to (10, 2)

since the y coordinate is the same

AB = (10 - 5) = 5

Length2 goes from (5, 5) to (10, 5)

since the y coordinate is the same

BC = (10 - 5) = 5

Width1 goes from (5, 2) to (5, 5)

since the x coordinate is the same

CD = (5 - 2) = 3

Width2 goes from (10, 2) to (10, 5)

since the x coordinate is the same

DA = (5 - 2) = 3

perimeter = sum of all sides

p = 5 + 5 + 3 + 3 = 16 units

Hence the perimeter is 16 units.

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Answer:

kewl ok

Step-by-step explanation:

The snack that smiles back gold fish :)

Answer:

OKIE DOKIE

Step-by-step explanation:

LOL

Answer: - 65/42 or -1 23/42

Step-by-step explanation:

You have to expand the brackets then make it into a mixed number/simplify it.

Good luck!

Answer:

B

Step-by-step explanation:

Let x = John's age now

half of what johns age was 4 years ago: (1/2)(x-4)

is equal to one third of what it will be in 5 years time: (1/3)(x+5)

(1/2)(x-4) = (1/3)(x+5)

3(x-4) = 2(x+5)

3x - 12 = 2x + 10

The above obtained relation can be used to find df(0) / dz as we now have df/dr (dr/dz) evaluated at z=0. Thus,df(0) / dz = 2 * 0 / (-dx - 2jdx) = 0. Hence, the required solution is df(0) / dz = 0.

Given complex function is f(z) = x2 + jy2. We are supposed to find df(0) / dz.Solution:To find df(0) / dz, we need to first find f(z) as a function of z. Since, f(z) = x2 + jy2, we have, f(z) = |z|2. Now, we have, |z|2 = (x+iy) (x-iy) = x2 + y2 = r2. Differentiating this with respect to z, we get,df / dz (|z|2) = df / dz (r2) = 2r dr/dz. Now, we need to find dz. This can be found using the following relation, dz = dx + jdy.

Thus, we have,dz = dx + jdy = 1/2 (dz + d\bar{z}) + j 1/2 (dz - d\bar{z}) = (dx - dy)/2 + j (dx + dy)/2. 

Therefore,

df/dz = df/dr (dr/dz)

= 2r / (dx - dy - 2jdx). T

he above obtained relation can be used to find df(0) / dz as we now have df/dr (dr/dz) evaluated at z=0.

Thus, df(0) / dz = 2 * 0 / (-dx - 2jdx) = 0. Hence, the required solution is df(0) / dz = 0.

To find df(0) / dz, we need to first find f(z) as a function of z.

Since, f(z) = x2 + jy2,

we have, f(z) = |z|2.

Now, we have, |z|2 = (x+iy) (x-iy) = x2 + y2 = r2.

Differentiating this with respect to z, we get,

df / dz (|z|2) = df / dz (r2) = 2r dr/dz. 

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There are 37 numbers from 1 to 37, inclusive.

The probability of choosing a number that is a multiple of 3 is approximately 0.324 or 32.4%.

How to find and what is probability?

To count the number of multiples of 3, we can first find the smallest multiple of 3 that is greater than or equal to 1, which is 3.

Then we can find the largest multiple of 3 that is less than or equal to 37, which is 36. We can then count the multiples of 3 by counting in increments of 3 from 3 to 36: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36. There are 12 such numbers.

Therefore, the probability of choosing a number that is a multiple of 3 is:

P(multiple of 3) = number of multiples of 3 / total number of numbers

P(multiple of 3) = 12/37

So the probability of choosing a number that is a multiple of 3 is approximately 0.324 or 32.4%.

Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

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Marissa's shape is classified as a scalene and obtuse triangle, considering it's concepts presented in this problem.

The triangle has three sides of unequal length, as the opposite angle measures are different, hence it is classified as an scalene triangle.

(it would be equilateral if all had the same length, and isosceles if two sides have the same length).

The triangle has one angle larger than 90º, hence it is classified as an obtuse triangle.

(acute with no angles of 90º or greater, right with one angle of exactly 90º).

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Answer:

this is the answer

41

The type of linear relationship is positive.

Correlation is a statistical measure that expresses the extent to which two variables are linearly related (meaning they change together at a constant rate). It's a common tool for describing simple relationships without making a statement about cause and effect. The correlation coefficient is a statistical measure of the strength of a linear relationship between two variables. Its values can range from -1 to 1. A coefficient of 1 shows a perfect positive correlation, or a direct relationship. A correlation coefficient of 0 means there is no linear relationship.

The type of linear relationship is positive.

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Answer: 9.5 and 9.500

Answer:

One would be 9/5 and another could be 1.8

Answer:

24 degrees

Step-by-step explanation:

The sum of the exterior angles of a triangle is 360 degrees

2x + 6x + 7x = 360

15x = 360

x = 24

Answer:

x=24

Step-by-step explanation:

2x+6x+7x=360
15x=360

15x/15=360/15
x=24

Answer:

slope = 0

Step-by-step explanation:

(-3, 2) and (6, 2)

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

remember, either x or y can be used but you have to be consistent

slope = (2-2)/(-3-6)

slope = 0/(-9)

slope = 0

Answer: no slope or 0

Step-by-step explanation:

The y-coordinates are the same for both points but the x coordinates are different. This signals a no-slope line, or a line where the slope is 0. Even if we apply the formula, which is \(\frac{y_2-y_1}{x_2-x_1}\), it still ends up with 0.

Vertically compressing the exponential parent function f(x) = 2^x by a factor of 3 means multiplying every function value by 1/3, resulting in a steeper and narrower curve closer to the x-axis.

If we vertically compress the exponential parent function f(x) = 2^x by a factor of 3, it means that every point on the graph of the function will be compressed closer to the x-axis. In other words, the function values will be multiplied by 1/3.

Let's consider a point on the original exponential function, (x, f(x)). After the vertical compression, this point will have the coordinates (x, (1/3)f(x)). For example, if f(x) = 8 for some x, after compression, the corresponding point will be (x, (1/3)(8)) = (x, 8/3).

This vertical compression affects all points on the graph uniformly, resulting in a steeper and narrower curve compared to the original exponential function.

The y-values of the compressed function will be one-third of the y-values of the original function for each x-value. Therefore, the graph will be squeezed vertically, with the y-values closer to the x-axis.

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when x is 5, y is 35.

If x and y vary directly, this means that their ratio remains constant. We can express this relationship mathematically as:

x/y = k

where k is the constant of proportionality.

To solve the problem, we first need to find the value of k using the information given:

y = kx

56 = k × 8

Solving for k, we get:

k = 7

Now that we have the value of k, we can use it to find y when x is 5:

y = kx

y = 7 × 5

y = 35

Therefore, when x is 5, y is 35.

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The total area of the walls of the bathroom can be calculated by multiplying the perimeter of the floor by the height of the walls, as shown in the following diagram:

The perimeter of the floor (in feet) is:

Then, the area of the walls is:

We should subtract the area of the window and the door from the total area of the walls. The area of the window is:

And the area of the door is:

Then, the total surface (in square feet) that will be covered by paint is:

Since Steve is going to paint two coats, then the surface area should be covered twice, and the total surface that is going to be painted is:

Two cans of paint will be enough to cover 400 square feet, and three cans would be needed to cover up to 600 square feet.

Since the total surface that is going to be painted is 476 square feet, then, Steve needs 3 cans of paint.

Based on reasoning optimize their hiking route and minimize the distance they must hike overall.

Statement                                                 | Reason

--------------------------------------------------------------|--------------------------------------

1. Jin and Tom want to minimize the distance they must hike. | Given

2. Placing their camp at the midpoint of the trail           | Strategy for minimizing distance

3. The midpoint ensures equal distance to the rock bridge    | Definition of midpoint

  and the falls.

4. Jin and Tom can hike half the trail on the first day.     | Reasoning based on midpoint placement

5. Jin and Tom can return to camp after reaching the rock    | Strategy for completing the hike

  bridge.

6. Jin and Tom can hike the remaining half of the trail on   | Reasoning based on midpoint placement

  the second day.

7. Placing the camp at the midpoint reduces total distance   | Strategy for minimizing overall distance

  traveled.

8. The distance from camp to the rock bridge is equal to     | Result of midpoint placement

  the distance from camp to the falls.

9. By placing their camp at the midpoint, Jin and Tom        | Conclusion based on reasoning

  optimize their hiking route and minimize the distance

  they must hike overall.

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Answer:

The amount in the account after 10 years, with a $100,000 initial deposit and an annual interest rate of 2% compounded annually, is $121,899.44.

To calculate the amount in the account after a certain number of years with compound interest, we can use the formula:

A =\(P(1 + \frac{r}{n})^{nt}\)

Where:

P is the amount in the account after n years,

P₀ is the initial deposit,

r is the annual interest rate (as a decimal),

n is the number of times interest is compounded per year,

t is the number of years.

In this case, the initial deposit is $100,000, the annual interest rate is 2% (or 0.02), and interest is compounded annually (n = 1). We want to find the amount after 10 years (t = 10).

Using the formula:

P = 100,000\((1 + 0.02/1)^(1*10)\)

 ≈ 100,000\((1.02)^10\)

 ≈ 100,000(1.2189944)

 ≈ $121,899.44

Therefore, the amount in the account after 10 years will be approximately $121,899.44.

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The composite result function of ( f ° g )(x) in the given functions f( x ) = x² + 9 and g( x ) = x² - 9 is x⁴ - 18x² + 90.

A function is simply a relationship that maps one input to one output.

Given the data in the question;

First, we set up the composite result function f(g(x)).

f( x ) = x² + 9

f( g(x) ) = f( x² - 9 ) = ( x² - 9  )² + 9

f( g(x) ) = ( x² - 9  )² + 9

Expand the parenthesis

f( g(x) ) = ( x² - 9 )( x² - 9 )  + 9

f( g(x) ) = ( x²( x² - 9 ) -9( x² - 9 ) + 9

f( g(x) ) = x⁴ - 9x² - 9x² + 81 + 9

Collect and add like terms

f( g(x) ) = x⁴ - 18x² + 81 + 9

f( g(x) ) = x⁴ - 18x² + 90

Therefore,  ( f ° g )(x) in the given functions is x⁴ - 18x² + 90.

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Answer:

$0.90/kg

Step-by-step explanation:

4.50/5=0.90