If
x
=
4
and
y
=
7
, evaluate the following expression:
20

(
3
y

4
x
)

Answers

Answer 1

Answer:

15

Step-by-step explanation:

given solution

x=4 20-(3y-4x) substitute

y=7 20-(3(7)-4(4))

20-(21-16)

20-5

answer =15


Related Questions

Solve 7! (Factorials) please help I suck at math :(

Answers

Answer:

7! = 5040

Step-by-step explanation:

7! is a factorial expression that can be solved as follows:

7 × 6 × 5 × 4 × 3 × 2 × 1 = 5040

Therefore, 7! = 5040

Give coordinates for three possible pairs of points for the other two verticies...

Answers

Answer:

A) (-1,3) and (4,3)

B) (-1,-7) and (4,-7)

C) (1.5, .5) and (1.5, -4.5)

Step-by-step explanation:

For 1 and 2, because the y-values of the points are the same, the length of the square can be found by subtracting the x-coordinates.

4-(-1)=4+1=5

The length of the side of the square is 5.

1. For the first set of points, the square is above the two given points so just add 5 to the y-values

-2+5=3

This gives you the points:

(-1,3) and (4,3)

2. For the second set of points, the square is below the two given points so subtract 5 from the y-values.

-2-5=-7

This give you the points:

(-1,-7) and (4,-7)

3. The third answer is when the two given points are on opposite corners

of the square.

Here the diagonal is equal to 5 since they are on opposite corners of the square.

The diagonal of a square can be found with the pythagorean theorem

Since we have the diagonal we can find the side lengths we need.

[tex]2s^2=25[/tex]

s=[tex]\sqrt{\frac{25}{2} }[/tex]

s=3.5355

We want the new vertices to be in the middle of the other vertices x-coordinates

[tex]\frac{4-(-1)}{2} =\frac{5}{2} =2.5[/tex]

The new vertices will be 2.5 units away from the other vertices

-1+2.5=1.5

The new vertices will be at x=1.5

Now we need the pythagorean theorem again to find the y-values

[tex](2.5)^2+h^2=(3.5355)^2[/tex]

[tex]6.25+h^2=\frac{25}{2}[/tex]

[tex]h=\sqrt{\frac{25}{2} -6.25}[/tex]

h=2.5

The new vertices will be:

(1.5, -2+2.5)=(1., .5)

(1.5, -2-2.5)=(1.5, -4.5)

Find the coordinates of the point 1/3 of the way from A to B

Answers

There is no photo not specific enough

The (least common multiple, greatest common factor) of 5 and 10 is 5.

Answers

Answer:

the Greatest common factor is 5

Jenny played four games of golf. For these games her modal score was 76 and her mean score was 75. Her range of scores was 10. What were her scores for the four games?​

Answers

75 x4=300(total scores)
Modal score is 76, so at least two of the 4 game scores must be 76.
That’s all I’ve got:)

solve the equation -4x³=32​

Answers

Answer is X=-2 I hope this helps

Answer:

Step-by-step explanation:

- 4x^3 / (- 4) = 32 / (- 4)

x should and cannot be negative or it shouldn't be for example (- x) = 90

cubic root (x^3) = cubic root (- 8)

x = cubic root (- 8)

x = 2i

what is "i"?

It is an imaginary number as you cannot square, cubic, or whatever root with a negative in it. so instead you must add "i" to remove the negative as a replacement and indicator that it was a negative number.

True or false: When testing the difference between two population means it is unlikely that one would know the value of the population variances.

Answers

The answer is True
………

Write each expression without using exponents.
a.
[tex]5 \frac{2}{3} [/tex]
b.
[tex]4 - \frac { 3}{2} [/tex]

Answers

☆Answer : A.)

5⅔ = ...

= (3 × 5 + 2)/3

= (15 + 2)/3

= 17/3

[tex] \: [/tex]

B.)

4 - 3/2 = ...

= 4 - 1,5

= 2,5 <==> 2½

[tex]5 \frac{2}{3} [/tex]

[tex]=\frac{5 \times 3 + 2}{3} [/tex]

[tex] = \frac{15 + 2}{3} [/tex]

[tex] = \frac{17}{3}[/tex]

[tex]4 - \frac{3}{2} [/tex]

[tex] = \frac{4}{1} - \frac{3}{2} [/tex]

[tex] = \frac{4 \times 2}{1 \times 2} - \frac{3}{2} [/tex]

[tex] = \frac{8}{2} - \frac{3}{2} [/tex]

[tex] = \frac{8 - 3}{2} [/tex]

[tex]= \frac{5}{2}[/tex]

[tex] = 2 \frac{1}{2} \: \: \: or \: \: \: 2,5[/tex]

plz help will mark as brainliest​

Answers

Step-by-step explanation:

18 cm is the correct answer

Help given the graph of the function below what happens to f(x) when x is a small positive number?

Answers

Answer:

A

Step-by-step explanation:

Why is all the answers on this website saying my work is wrong.

Answers

Answer:

you're wrong

Step-by-step explanation:

should have been "Why are all the answers on this website saying my work is wrong?"

Consider the equation below.

-5n + 31 - 14n -

5–59 + 31 = –14n – 5

-

Select the equation that has the same solution.

-1 – 22n

20n – 9–1 – 22n = –20n - 9

0

1 = 0.75n + 3.251 = 0.75n + 3.25

In + 2 = −3+ min + 2 =

3 + 1

3 – 6n + 3n = – 3 + 4 – 4n3 – 6n + 3n = -3 + 4 – 4n

Answers

Answer:

-1 - 22m

Step-by-step explanation:

karl is 4 years older than danny. eigt years ago carl was twice as old as danny. How old is danny now

Answers

Answer:

Karl is 16 and Danny is 12

Step-by-step explanation:

Danny is 12. His brother karl is 16 possibly

HELP I WILL GIVE BRAINLEST

Answers

sin(x) = 1/2 and the angles must be between 0 and 180.

We can take the arcsin(1/2) and we get 30 degrees, but that is only half of the answer.

There are two angles for which the y value on the unit circle outputs 1/2.

To find this other value which is in the second quadrant: 180 - 30 = 150.

The other angle is 150 and can be checked by solving sin(150) which outputs 1/2 so we know have the correct answer.

Smaller =  30   Larger = 150.

P.S make sure your calculator is in degree mode.

What is the value of this expression?

−29−(−13÷35)

Answers

Answer:

-29 13/35

Step-by-step explanation:

5/9 rounded to the nearest thousand​

Answers

answer is .5 repeating, round at thousands place

0.556
The answer is: 0.556

Explanation:

When you divide 5 by 9, you get the answer 0.5555….

Simply count to the thousandth place after the decimal and round which gives the answer: 0.556

if the diagonal of a square is 11.3 what is the perimeter

Answers

Answer:

Step-by-step explanation:

if the diagonal of a square is 11.3 what is the perimeter

from the diagonal we find the area, which can also be found by multiplying diagonal by diagonal divided by two, then we make the square root of the area and find the side, we multiply by four and we have the perimeter

(11.3 * 11.3) : 2 = 63.8 u² (Area)

√63.8 = 7.9 (side)

7.9 * 4 = 31.6u (perimeter)

A watch company estimates that the profit (in peso)
for selling a particular model is given by
P(x)=4x^3-31x^3-10058x+158040 for 0 < x < 50
where x is the advertising expense (in tens of thousands of pesos).

What kind of polynomial is described by the equation?

A.quadratic
B.constant
C.cubic
D.quintic

I need an answer right now thank you.

Answers

The leading degree of the polynomial is 3. This shows that the polynomial described by the equation is a cubic polynomial

The standard form of a polynomial expression is written as:

[tex]a_nx^n+ a_{n-1}x^{n-1}+ a_{n-2}x^{n-2}+...[/tex]

A polynomial function has a leading degree that is greater than 2;

Given the polynomial function

[tex]P(x)=4x^3-31x^3-10058x+158040[/tex]

From the given polynomial, the leading degree of the polynomial is 3. This shows that the polynomial described by the equation is a cubic polynomial

Learn more here:https://brainly.com/question/19809286

the total of this is 297197401415÷842035

Answers

Answer:

Approximately 352,951.36

Answer:

Step-by-step explanation:

= 297197401415+842035

= 297198243450

=297197401415/842035

=352951.363

PLEASE HELP WILL MARK BRAINLIEST

Answers

Answer:

A

Step-by-step explanation:

Expressing the identity in terms of a and b

(a + b)³ = a³ + b³ + 3ab(a + b)

Subtract 3ab(a + b) from both sides , then

a³ + b³ = (a + b)³ - 3ab(a + b) ← substitute given values

a³ + b³ = 12³ - 3(7)(12) = 1728 - 252 = 1476

Step-by-step explanation:

I hope you get it. you have to substitute and also find the value of a3 + b3

Louise spins the spinner twice. Which probabilities are correct? Check all that apply.

Answers

Where are the probabilities?

Describe the steps you used to solve the equation and
find the amount of Carrie's allowance.
Linear
equation: 1/4 a + 1/3 a+ 8 = 22

Answers

Answer: 22

Step-by-step explanation: 1/4a + 1/3a + 8 = 22

Answer:

Sample Response: First, the like terms had to be combined using the lowest common denominator (LCD). Then the subtraction property of equality was used to isolate the variable term. Finally, both sides of the equation were multiplied by the reciprocal of the coefficient to solve for a.

Step-by-step explanation:

7+(4x8)-9
i need help this is weird

Answers

Answer:

30

Step-by-step explanation:

7+(4*8)-9

Multiply first inside the parentheses

7+(32)-9

Then add and subtract from left to right

39 - 9

30

Answer:

If x is a variable then the answer is 4x⁸ - 2

If x is a multiplication representation then the answer is 30

Step-by-step explanation:

If x is a variable:

1) Eliminate redundant parentheses

[tex]7+(4x^{8} )-9\\7+4x^{8} -9[/tex]

2) Subtract the numbers

[tex]7+4x^{8} -9\\-2+4x^{8}[/tex]

3) Rearrange Terms

[tex]-2+4x^{8} \\4x^{8} -2[/tex]

Help I need a helping hand
A boat travels at a rate of 30 miles per hour for 3.5 hours. Let y be the distance, in miles, the boat travels for a given amount of time, x, in hours. This situation can be modeled by a linear function. What is the domain of the function?

Question 11 options:

0≤y≤30

0≤y≤3.5

0≤x≤3.5

0≤x≤30

Answers

Answer:

Step-by-step explanation:

Recall that distance = (rate)(time).  Here the rate is 30 mph and the time 3.5 hr.  The distance traveled is proportional to the time passing by.  The graph of the distance function is a straight line with slope equal to the "rate" named above:

d(x) = (30 mph)x

Since x (elapsed time) can't be negative in this situation, we write the domain as 0 ≤ x ≤ 3.5 hr.

a box of 15 cookies cost 9 dollars, how much will one cookie cost? khan academy

Answers

you would divide 15 and 9 to get the rate of each cookie. $1.66

Answer:

135. You multiply to get your answer.

What property is illustrated in the following equation?

8 + 5 = 5 + ?

Answers

The answer is communitive property.

Answer: 3

Step-by-step explanation: Did it recently.

Graph the line with the equation y = 6/5x-2

Answers

Answer:

Step-by-step explanation:

The graph of equation is shown in figure.

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The equation of line is,

⇒ y = 6/5x - 2

Now,

Since, The equation of line is,

⇒ y = 6/5x - 2

Clearly, The slope = 6/5

And, The y - intercept = - 2

Thus, The graph of equation is shown in figure.

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ2

What is the Slope of the line containing the points (3,4) and (5,6)? Please help

Answers

Answer:

1

Step-by-step explanation:

Y2-Y1/X2-X1 would become 4-6/3-5 which would become-2/-2 and that equals 1 because its a whole number and when you divide or add two negative numbers, it becomes a positive

Graph a right triangle with the two points forming the hypothenuse, Using the sides, find the distance between the two points, to the nearest tenth if necessary (3. -7) and 8. -3)

Answers

Answer:

That distance is 6.4

Step-by-step explanation:

The legs of the triangle form a right angle.  The bottom leg has length 8 - 3, or 5, and the vertical leg -3 - (-7), or 4.  Applying the Pythagorean Theorem:

(vertical leg)^2 + (horizontal leg)^2 = (hypotenuse)^2, which here is

4^2 + 5^2 = (hypotenuse)^2

This works out to 16 + 25, or 41.

The distance between these two points is d = √41, or d = 6.4

The perimeter of a rectangle is 40 cm. The length is 14 cm.
Let x = width of the rectangle.
Ravi says he can find the width using the equation 2(x + 14) = 40.
Fran says she can find the width using the equation 2x + 28 = 40.
Answer the questions to solve the equations and to compare the steps and solutions.
1. Which of these is the most helpful first step for solving Ravi's equation, 2(x + 14) = 40?
Circle the best answer.
Add 14 to both sides
Subtract 14 from both sides
Divide both sides by 2
Multiply both sides by 2














2. What would your next step be?

Write your answer in the space below.














3. Solve Ravi's equation, 2(x + 14) = 40, to find the width of the rectangle. Show your work.

Write your answer in the space below.2(x +14) = 40 (use the distributive property)
2x + 28 = 40 (solve exactly like you did for Fran)
2x = 12
x = 6















4. Which of these is the most helpful first step for solving Fran's equation, 2x + 28 = 40?
Circle the best answer.
Multiply both sides by 2
Subtract 28 from both sides
Divide both sides by 2
Add 28 to both sides














5. What would your next step be?

Write your answer in the space below.














6. Solve Fran's equation, 2x + 28 = 40, to find the width of the rectangle. Show your work.

Write your answer in the space below.














7. The two equations have different solution steps. Do they have the same solution? Use the distributive property to show why this answer makes sense.

Write your answer in the space below

Answers

Answer:

Below.

Step-by-step explanation:

1. Divide both sides by 2.

2. After dividing both sides by we would have:

x + 14 = 20

The next step would be

Subtract 14 from both sides.

3. 2(x + 14) = 40

x + 14 = 20

x = 20 - 14

x = 6.

2x + 28 = 40

2x = 40 - 28

2x = 12

x = 6.

Other Questions
How do you say last week in Spanish PLZ HELP! why it is important to base scientific theories and models on empirical evidence as opposed to other ways of knowing such as religion? Consider the following equation. x+2y=4Step 2 of 2 : Determine the missing coordinate in the ordered pair (?,12) so that it will satisfy the given equation. Solve the given equations. PLEASE show your work. Choose if the equation has infinite many solutions or no solution. It can have a solution -2(x + 4) + 9x = 4 - 7x What is Abacus in terms of maths ? Keith wants to buy an IPad for $500. He wants to earn enough money delivering pizzas to cover at least two-fifths of the cost.Part A.If he earns $12.50 per hour at work, write an inequality that represents how many hours Keith's needs to workPart BSolve your inequality? Justify your answer. 2. Mutation in the genes of an organism is a cause. What is a possible effect? You and another one of the nurses from your floor are at the gym. You decide to discuss one of the patients that you both have been taking care of. This would be _____.legal, because they are both medical professionalsethical, because they obviously care for the patientunethical, because they should not discuss patientsillegal, because they are breaching privacy laws 200 divided by 269 plz help me Read this poem about the American colonists fighting the first battle of the Revolutionary War. First, identify the figurative language used in the line shown in boldface and determine its meaning. Then, explain how this figurative language contributes to the overall meaning of the poem.PassageBy the rude bridge that arched the flood,Their flag to April's breeze unfurled,Here once the embattled farmers stood,And fired the shot heard round the world.The foe long since in silence slept;Alike the conqueror silent sleeps;And Time the ruined bridge has sweptDown the dark stream which seaward creeps.On this green bank, by this soft stream,We set to-day a votive stone;That memory may their deed redeem,When, like our sires, our sons are gone.Spirit, that made those heroes dareTo die, and leave their children free,Bid Time and Nature gently spareThe shaft we raise to them and thee.Ralph Waldo Emerson, "Concord Hymn" What is the primary purpose of the Supremacy Clause? to outline why some powers must be implied rather than detailedto explain why state and federal powers are always kept equalto describe the relationship between federal and state powersto declare to American citizens the US is the supreme ruler The rows in the periodic table are called periods. What is true about elements in the same period? fill in the two blanks Geometry problem, Two sides of a triangle have Lengths 15 and 20 the length of the third side can be any number greater than blank and less than blank Evaluate 7P4 and 10C6 . Choose which assumption must be made in order for this estimate of broad-sense heritability to be correct. a. The phenotypic variance of the genetically identical plants is the same as the genetically variable population. b. The genetic variance component is strictly the result of additive genetic variance. c. The environmental variance of the genetically identical plants is the same as that of the genetically variable population. d. There is no phenotypic variance associated with the environment. FIRST PERSON TO ANSWER GETS BRAINLIEST Activity 4 - Accomplishing the Scoring Card Direction: Evaluate yourself by checking the appropriate boxes to indicate the degree of competency in nail care tools and equipment.pls help guys:-( Jane plans to fly from Binghamton, New York, to Springfield, Massachusetts, about 280 km due east of Binghamton. She heads due east at 280 km/h for one hour but finds herself at Keene, which is 294 km from Binghamton in a direction 17.8 degrees north of due east. What was the wind velocity A representative who is performing the role of an instructed delegate is: Im so confused on how to do this -?