When x = 2 and y = 4 what is the vaule of 7x - y?

Answers

Answer 1
10,
explanation:
7(x)-1(y) is another way of writing it.
fill in the missing values.
7(2)-1(4)
solve.
14-4
answer.
10
Answer 2

Answer: 10

Step-by-step explanation:

x = 2

y = 4

equation :

7x - y

after putting the values to the equation :

7(2x) - (4)

7*2 = 14

14 - 4 = 10

The answer is 10.


Related Questions

Relationship B has a greater rate than Relationship A. This graph represents Relationship A.

Which equations could represent Relationship B?

Select each correct answer.

y = 2.2x

y = 3x

y = 1.4x

y= 1/2x

Answers

The equations which could represent Relationship B which has a greater rate than Relationship A as described in the task content are; y = 2.2x and y = 3x.

Which equations could represent Relationship B?

It follows from the task content that the equation which could represent Relationship B given that it has a greater rate than Relationship A be determined.

It can be evaluated from the graph given that the slope of relationship A which is a measure of it's rate is;

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

m = (8 -4)/(4-2)

m = 4/2

m = 2.

Ultimately, since the rate of Relationship A is 2, and the rate of Relationship B has to be greater, it follows that the equations which are required are;

y = 2.2x y = 3x

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If your coefficient is a negative number, what would that indicate for a real life scenario?
the starting amount is positive
the initial quantity is decreasing
the starting amount is negative
the initial value is increasing

Answers

It should be noted that if your coefficient is a negative number, this indicates for a real life scenario that C. the starting amount is negative.

A negative coefficient means what?

A negative coefficient indicates that the dependent variable tends to drop as the independent variable rises. The coefficient value is the amount that a one-unit change in the independent variable affects the mean of the dependent variable while keeping all other model variables constant.

If the correlation coefficient is negative, the two parameters you evaluated may have an inverse relationship.

Therefore, it should be noted that if your coefficient is a negative number, this indicates for a real life scenario that the starting amount is negative

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Work out ( 3 × 10 − 3 ) − ( 6 × 10 − 5 ) Give your answer in standard form.

Answers

Answer:

-28

Step-by-step explanation:

Simplify those in parenthesis first.

( 30 - 3) - (60 - 5)

27 - 55

= -28

Alice, Billy, and Anna are spending the weekend baking cookies for
winter holiday gifts. For each batch of cookies, they’ll need 21
/2 cups of
flour and 11
/4 cups of butter. Each person contributed supplies from
their mothers’ kitchens and met at Anna’s house.

Answers

The fraction that Alice, Billy, and Anna should bring when they are spending the weekend baking cookies for winter holiday is 11/12 cups.

How to calculate the value?

It should be noted that based on the information, for each batch of cookies, they’ll need 2 1/2 cups of flour and 1 1/4 cups of butter.

In this case, it should be noted that there are 3 people.

The fraction will be:

= (2 1/2 + 1 1/4) / 3

= 3 3/4 ÷ 3

= 11/12

Therefore, the fraction will be 11/12 cups for each person.

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Alice, Billy, and Anna are spending the weekend baking cookies for.winter holiday gifts. For each batch of cookies, they’ll need 2 1/2 cups of flour and 1 1/4 cups of butter. Each person contributed supplies from their mothers’ kitchens and met at Anna’s house. What fraction should each person bring?

What is the slope of a line perpendicular to the line whose equation is 3x+y=8. Fully simplify your answer.

Answers

Y=-3x+8 (I think but I might be wrong)

if chips cost 2.00 for 5 bags how much will it cost for 308 people

Answers

Answer:

$123.20

Step-by-step explanation:

Hey there!

To find the price for 308 bags of chips FOR 308 people, we need to first know what the price for 1 bag is

It says that it is 2 dollars for 5 bags

Now, we need to divide 2 by 5 to see how much money 1 bag is

2/5 is 0.4 and in this case 0.40 since we're dealing with money

Now that we know this, all we need to do is multiply 0.40 by 308 because we are buying for 308 people

0.40 x 308 is 123.2

This means that for 308 people, it would cost $123.20 to supply them all with a bag of chips!

Due today! Help, please! Will give brainly! 25 pts

Answers

The measures of the angles are

TLN = 51, NLM = 129 and MZQ =  129JZQ = TLN = 99LMO= ZMR = 34 and  LMR = y = 166How to determine the measures of the angles?

1. Angle TLN, MZQ and NLM

The angles TLN and NLM are supplementary angles

So, we have

TLN + NLM = 180

This gives

3x - 18 + y = 180

Also, we have

TLN + MZQ = 180

So, we have

3x - 18 + 5x + 14 = 180

Evaluate the like terms

8x -4 = 180

This gives

8x = 184

Divide

x = 23

Substitute x = 23 in 3x - 18 + y = 180

3 x 23 - 18 + y = 180

Evaluate

51 + y = 180

So, we have

y = 129

The above computations imply that:

TLN = 3 x 23- 18 = 51

NLM = y = 129

MZQ = 5 x 23 + 14 = 129

2. Angle JZQ and TLN

The above means that

JZQ = TLN

So, we have

9x + 9 = 8x + 19

Evaluate

x = 10

So, we have

JZQ = TLN = 9 * 10 + 9

JZQ = TLN = 99

3. Angle ZMR, LMO and LMR

The angles ZMR and LMO are congruent angles

So, we have

ZMR = LMO

This gives

x + 14 = 2x - 6

Evaluate

x = 20

Also, we have

LMR + LMO = 180

So, we have

y + 2x - 6 = 180

y + 2 x 10 - 6 = 180

y + 14 = 180

So, we have

y = 166

The above computations imply that:

LMO= ZMR = 20 + 14 = 34

LMR = y = 166

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7+(8-3*2) what would be the answer for 50-[20+{50-40}]

Answers

Answer:

So the answer would be 20 for 50-[20+[50-40]]

Step-by-step explanation:

50 - 40 =10 and 20 +10 = 30 so we 50 minus 30 which is 20

If its the other one it is 9 because 3 times 2 is 6 and 8 minus 6 is 2 and 7 plus 2 equals 9

8.
Calculate the midpoint of the line segment
formed with the endpoints shown.
Show your work.
(2, 4) and (5, -1)

Answers

[tex]~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ (\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-1}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{ 5 +2}{2}~~~ ,~~~ \cfrac{ -1 +4}{2} \right) \implies \left(\cfrac{ 7 }{2}~~~ ,~~~ \cfrac{ 3 }{2} \right)\implies \left(3\frac{1}{2}~~,~~1\frac{1}{2} \right)[/tex]

What is a Euler Equations?

Answers

Answer: a set of quasilinear partial differential equations governing adiabatic and inviscid flow.

Step-by-step explanation:

that the definition of a Euler Equation.

HELP ME WITH THIS QUESTION HURRY!!!!DUE IN A FEW MINS
LVL- 8th

Answers

Answer:

I think the length remains the same

Step-by-step explanation:

A data set related to finding a job contains many variables. Some of the varia

job title, starting salary (in dollars), education required (number of years posts

experience, and location. Classify each variable as categorical or quantitative

column

Answers

Categorical variable: job titles, location

Quantitative variable: starting salary, number of years post-experience

Categorical variables represent many data kinds that can be grouped. Race, sex, age, and educational level are a few examples of categorical variables.

In addition, categorical variables are any variables where the data represent groups, as opposed to quantitative variables, which are any variables where the data indicate amounts, such as height, weight, or age.

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The scatter plot and a line of best fit show the relationship between the hours spent sleeping and the hours spent watching TV.

Which statement describes the relationship between the hours spent sleeping and the hours spent watching TV?

Answers

For every hour spent watching television, the amount of time spent sleeping drops by an Graph hour.

Graph: A graph is a visual representation, such as a picture or diagram, that shows information or values in a structured way.

The relationships between two or more items are frequently represented by the points on a graph.

Various Graph Types

Pictograph

The term "pictograph" refers to the visual depiction of information. Each graphic represents a specified number of objects.

Line Graph:

In a line graph, dots are connected by lines to depict changes over time.

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Which expression is NOT equivalent to 6√81x⁴y⁸ ?
(f) (3 x y²)²/₃ (g) (3 x)²/₃ y⁴/₃ (h) (3 x²y²)¹/₃ (i) ∛9 x² y⁴

Answers

None of the given option is equivalent to 6 [tex]\sqrt81x^{4}y^{8}[/tex].

What are square  and square roots?

squares are the products of numbers which comes out when the no. is multiplied by itself twice .

and square root helps to find the no. which is multiplied twice to get that no. inside the root.

CALCULATION

6 [tex]\sqrt81x^{4}y^{8}[/tex]

= 6 * 9 [tex]x^{2} y^{4}[/tex]

= 54 [tex]x^{2} y^{4}[/tex]

Since from the given option none of the option is equivalent to 6 [tex]\sqrt81x^{4}y^{8}[/tex]

because you can see that all of the option are given in cube roots but the question is in square root .

so , there are two possibilities that maybe the question is typed wrong or the options are incorrect . But if everything present in the question is correct then none of the given values are equivalent to the given expression.

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Find the average rate of change for the following functions over the interval.

Answers

Given the function and interval, the average rate of change of the function over the given interval is 1.

What is the average rate of change of the function over the given interval?

The average rate of change of a function is calculated by dividing the change in y-values over the change in x-values of the two point.

r = ( f(1) - f(0) / ( (1) - (0) )

Given the data in the question;

f(x) = 2x² - x - 2

Intervals: [0, 1]

Plug the given values into the average rate of change formula and simplify.

r = ( f(1) - f(0) / ( (1) - (0) )

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

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

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

r = ( -1 + 2 ) / 1

r = 1/1

r = 1

Therefore, the average rate of change of the function over the given interval is 1.

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The average rate of change of the function f(x) = 2x² - x - 2 over the intervals of 0 to 1 is 1.

What is the average rate of change of the function over the given interval?

The average rate of change of a function is calculated by dividing the change in y-values over the change in x-values of the two point.

AVR = ( f(1) - f(0) / ( (1) - (0) )

Given the data in the question;

f(x) = 2x² - x - 2Intervals: [0, 1]

Plug the given values into the average rate of change formula and simplify.

r = ( f(1) - f(0) / ( (1) - (0) )

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

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

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

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

r = ( -1 + 2 ) / 1

r = 1/1

r = 1

The average rate of change of the function f(x) = 2x² - x - 2 over the intervals of 0 to 1 is 1.

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Sam says that 2/7 to the power of 2 times 1/3 to the power of 5 can be rewritten as 2/21 to the power of 7 sarah says it can be rewritten as 2/21 to the power of 10 steve says it cannot be rewritten as either of these expressions who is correct explain

Answers

If Sam says that 2/7 to the power of 2 times 1/3 to the power of 5 can be rewritten as 2/21 to the power of 7 Sarah says it can be rewritten as 2/21 to the power of 10 Steve says it cannot be rewritten as either of these expression. The person that is correct is: Steve.

Expression

2/7 to the power of 2 times 1/3 to the power of 5 can be rewritten or express as [(2/7²)× (1/3^5)].

This implies that both Sam and Sarah are wrong, Only Steve is correct because  2/7 to the power of 2 times 1/3 to the power of 5 can either of the two expression that was mentioned by Sam and Sarah.

Therefore if Steve says it cannot be rewritten as either of these expression. The person that is correct is: Steve.

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Find the midpoint of the segment with the following endpoints.
(9, 6) and (5, 2)

Answers

The midpoint of the segment is (7, 4).

According to the section formula-

If a point (x , y) divides a line in the ratio of m : n, where the two endpoints of the line are (x1, y1) and (x2, y2), then-

x = (nx1 + mx2)/ (m + n)

and y = (ny1 + my2)/ (m + n)

Here, we are given two points- (9, 6) and (5, 2)

Therefore,

x1 = 9, y1 = 6

x2 = 5, y2 = 2

Since, midpoint divides a line segment into two equal halves, m : n = 1 : 1

Now, substituting the values in the section formula we get-

x = (9 + 5)/2

x = 14/2

x = 7

and y = (6 + 2)/2

y = 8/2

y = 4

Thus, the midpoint of the segment is (7, 4).

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If f(1)=1 and f(n)=f(n-1)-1 then find the value of 4

Answers

Value of f(4) is -2.


We are given that ,
f(1)=1, and f(n-1)-1=f(n)
We need to find the value of f(4).
So first,
f(1)=1.
f(2)=f(2-1)-1.
f(2)=f(1)-1. [f(1)=1 ].
Putting the value of f(1).
f(2) = 1-1
f(2) = 0.
Now, we have the value of f(2).
Now,
f(3)= f(3-1)-1.
f(3) = f(2)-1 [f(2)=0]
Putting the value of f(2).
f(3) = 0-1
f(3)= -1.
And last step to find the value of f(4).
f(4)= f(4-1)-1
f(4)= f(3)-1. [ f(3)= -1]
Putting the value of f(3) in above equation.
f(4) = -1-1
f(4)= -2.
So the value of f(4) is -2.



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What is the answer for this question?

Answers

The radical expression ∛24  is between integers 2 and 3

How to determine the two integers?

The expression is given as

∛24

The above expression is a radical expression .

So, we have:

Express 24 as the product of 8 and 3

So, we have

∛24 = ∛(8 * 3)

Take the cube root of 8

So, we have

∛24 = 2∛3

Take the cube root of 3

So, we have

∛24 = 2 * 1.44

Evaluate the product

∛24 = 2.88

2.88 is between integers 2 and 3

Hence, the radical expression ∛24  is between integers 2 and 3

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Simplify each radical expression. Use absolute value symbols when needed. 4√16 x¹²

Answers

The simplified value of radical expression 4√16 x¹² is 2x^3.

By considering the given expression

4√16 x¹²

=(16x^12)^1/4

=(2^4)^1/4( x^12)^1/4

=2x^3.

An expression with a square root is referred to as a radical expression. Radicand: A value or phrase contained within the radical symbol. Equation with radical expressions and variables as radicands is referred to as a radical equation.

The 'V'-shaped portion of the radical symbol will have a superscript number when it is used to represent any root other than a square root. For instance, the expression 3(8) denotes the cube root of 8.

The radical symbol, which resembles a check mark, the index, a small number written outside the radical symbol, and the radicand, a quantity written beneath the horizontal bar of the radical symbol, are the three main components of the radical expression ab.

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Describe the difference between an equation and an expression. Give an example!

Answers

The primary difference between expression and equation has an equal sign. An equation has a left side , a right side and an equal symbol separating the sides. But an expression by contrast does not have any sides and equal symbol.

What is Expression?

An expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) Expressions can be thought of as similar to phrases.

The primary difference between expression and equation is an equal sign. An equation has a left side , a right side and an equal symbol separating the sides. But an expression by contrast does not have any sides and equal symbol.

For example

ax2+by+c is an expression.

4x+3y+8=5 is an equation.

Therefore expression and equation both are different.

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Christopher is the oldest of three siblings whose ages are consecutive odd integers. If the sum of their ages is 6363, find Christopher's age.

Answers

Christopher's age given the sum of the ages of the three siblings is 23.

What is Christopher's age?

An odd number is a number that is not perfectly divisible by 2. An odd number can be a positive number or a negative number. An example of an odd number is 3 and 7.

Consecutive odd integers are odd integers that follow each other on the number line. Consecutive odd integers increase by a value of (x + 2). Examples of consecutive odd integers are 11, 13, 15.

Let x represent the youngest sibling's age

Second sibling's age : x + 2

Christopher's age : x + 4

x + x + 2 + x + 4 = 63

3x + 6 = 63

3x = 63 - 6

3x = 57

x = 57 / 3

x = 19

Christopher's age : x + 4 : 19 + 4 = 23

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Example 1:
If f(x) = 3x-4, find each value. Show all work.

a) ƒ(4)

b) f(-5)

c) f(2-x)

Answers

Answer: f(4) = 8,                     f(-5) = -19,                 f(2-x) = -3x+2

Step-by-step explanation:

Let's start by analyzing what we are given:

f(x)=3x-4

In this equation, f is the name of the function.

The number in the parentheses represents x.

The 3x-4 tells us what the equation does. In this instance, we multiply x by 3 and then subtract 4.

Let's start with (a).

f(4)

Since we have established that the number in the parentheses is x, we can plug 4 in for x into the equation f. We must abide by the order of operations. Therefore, we can obtain the following:

f(4) = 3(4) -4

f(4) = 12 -4

f(4) = 8

We can continue this for part (b).

f(-5) = 3(-5) -4

f(-5) = -15-4

f(-5) = -19

Part (c) is slightly different, but applies the same principles we established previously. On this part, we must recall the distributive property. The 3 multiples the 2 and the x. We must also remember to combine like terms.

f(2-x) = 3(2-x) -4

f(2-x) = 6 - 3x -4

f(2-x) = -3x +2

Joseph removes 5/8 gallons of white paint from a can. Then he adds 5/8 gallons of blue paint to the can.


Write and then evaluate a subtraction expression to find the overall increase or decrease in the amount of paint in the can.

Answers

Answer: Change = - 2.8 gallons

Step-by-step explanation:

Let X be the starting amount of paint in the can, in gallons.

"Removes 5/8 gallon" can be written -(5/8)gal

"Adds 3/8 gallon" becomes +(3/8)gal

The result is :  X - (5/8)gal + (3/8)gal = Remaining Paint (gallons)

Consolidating:  Remaining (gallons) = X - (2/8)gal

If we want the overall increase/decrease, subtract the initial volume:

Initial - Remaining = Change in amount of paint in can

Change =  (X-(2/8)gal) - X = - (2/8) gallons

Su Young borrows $2,900 from the bank for a new deck and some outdoor patio furniture. The interest rate is 5.5% per year. How much simple interest will she pay if she takes 15 months to repay the loan? Round to the nearest cent.

Answers

The simple interest that Su Young paid for borrowing $2,900 for 15 months at 5.5% per year is $199.375.

What is simple interest?

Simple interest is interest that is not compounded.

Compounding involves adding earned interests to the principal when computing the next period's interest.

Data and Calculations:

Principal = $2,900

Period = 15 months or 1.25 years

Interest Rate = 5.5%

Simple interest amount = Principal x Period x Rate

= $199.375 ($2,900 x 1.25 x 5.5%)

Thus, based on simple interest, Su Young paid $199.375.

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Forty two billion, three hundred and seven million, one hundred and Two thousand, three hundred and fourteen in number. Please help me​

Answers

Answer:

42,307,0102,014 is the number form

i need help with this

Answers

Answer:of not

Step-by-step explanation: ops

Find the height and area of the base of a rectangular pyramid with a volume of 70 cubic centimeters, length of 7 centimeters, and width of 6 centimeters

Answers

The height of the rectangular pyramid will be 5 centimeters.

What is volume?

The volume of any solid body is defined as the space covered by the object in the three-dimensional space. For a rectangular pyramid, the volume will be the space covered by a pyramid in a three-dimensional space.

Given that the volume of 70 cubic centimeters, length of 7 centimeters, and width of 6 centimeters.

The height of the rectangular pyramid is calculated by using the formula:-

V = ( l w h ) / 3

70 = ( 7 x 6 x h ) / 3

h = 70 / 14

h = 5

Therefore, the height of the rectangular pyramid will be 5 centimeters.

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Greatest perfect square number between 250 and 300

Answers

Answer:

69

Step-by-step explanation:

Can someone answer this plssss

Answers

Answer:

It is Perpendicular

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