use r = 27 and x = 3
- r 9 _ + 5x

Answers

Answer 1

Answer:

-228

Step-by-step explanation:

Answer 2
given the equation of a trend line can you find the exact amount of sales given exact advertising cost

Related Questions

what is value of y and x if 3x+2y=2 and 2x+3y=4​

Answers

We need to form a system of equations:

3x + 2y = 2

2x + 3y = 4

Now, we can multiply the first equation by 2, and the second equation by 3, to even out the coefficients by the variables (to make them the same thing).

6x + 4y = 4

6x + 9y = 12

Next, we can subtract the second equation from the first. We get:

0x - 5y = -8

Then this becomes:

-5y = -8

÷-1    ÷-1

5y = 8

÷5    ÷5

y = 1.6

Substitute 1.6 for y in one of the equations:

2x + 3(1.6) = 4

2x + 4.6 = 4

2x = -0.6

÷2      ÷2

x = -0.3

Answer: [tex]\Large \boldsymbol{(-0,4 \ \ ; \ \ 1,6)}[/tex]

Step-by-step explanation:

[tex]\displaystyle \Large \boldsymbol{} - \left \{ {{3x+2y=2} \ \ |\times3\atop {2x+3y=4}\ \ |\times2} \right. => \\\\\\\ 9x-4x+6y\!\!\!\!\!\!\diagup-6y\!\!\!\!\!\!\diagup=6-8 \\\\5x=-2 \\\\x=-0,4 \ \ ; \ \ y=(2+1,2):2 =1,6[/tex]

9. An equation representing the height of a burning candle is H = 2(9 - 2t), where
H is the height of the candle in cm and
t is the amount of time that the candle has been burning in minutes.
How long will it take for the candle to burn down to a height of 4 cm?
a. 2 min
b. 3.5 min
C. 5.5 min
d. 7 min

Answers

Answer:

H= 4cm

we want t

4=2(9-2t)

2=(9-2t)

-7=-2t

t=3.5 minutes

If x^2-ax+b and x^2-cx+d both have a factor x-m prove that m=d-b/c-a

Answers

Answer:

see explanation

Step-by-step explanation:

Given (x - m) is a factor of both then x = m make both expressions equal to zero.

m² - am + b = 0

m² - cm + d = 0

Then

m² - am + b = m² - cm + d ( subtract m² - cm from both sides )

cm - am + b = d ( subtract b from both sides )

cm - am = d - b ← factor out m from each term on the left side

m(c - a) = d - b ← divide both sides by (c - a)

m = [tex]\frac{d-b}{c-a}[/tex] ← as required

q · 7/9 = 4
What is q?

Answers

Answer:

q = 36/7  or 5 1/7

Step-by-step explanation:

q · 7/9 = 4

Multiply each side by 9/7

q · 7/9 *9/7 = 4*9/7

q = 36/7

If we want it as a mixed number instead of an improper fraction

7 goes into 36 5 times with 1 left over

q = 5 1/7

if 1/a=1/b+1/c+1/d find c when a=2, b=3 and d=5

guys help me with this question please​

Answers

Answer:

c is -30

Step-by-step explanation:

I. 1/a - 1/b - 1/d = 1/c

II. 1/2 - 1/3 - 1/5 = 1/c

III. (15-10-6)/30 = 1/c

IV. -1/30 = 1/c

V. so c.value is -30

Three pieces of wood measure 20 cm, 41 cm and 44 cm. If the same amount is cut off each piece, the remaining lengths can be formed into a right triangle. What is the length that is cut off?

Answers

5 cm or 29 cm

Step-by-step explanation:

Let x length is cut off from each measurements.

Thus, the new measurements would be: 20 - x, 41 - x, 44 - x, which forms the sides of a right triangle.

Here, (44 - x) will be hypotenuse and (20 - x) and (41 - x) will be perpendicular legs of the triangle.

Therefore, by Pythagoras theorem:

[tex] {(41 - x)}^{2} + {(20 - x)}^{2} = {(44 - x)}^{2} \\ \\ \therefore \: {(41)}^{2} - 82x + {x}^{2} + {(20)}^{2} - 40x + {x}^{2} \\ = {(44)}^{2} - 88x + {x}^{2} \\ \\ \therefore \: 1681 - 122x + 2 {x}^{2} + 400 \\ = 1936 - 88x + {x}^{2} \\ \\ \therefore \: 2081 - 122x + {x}^{2} = 1936 - 88x \\ \\ \therefore \: {x}^{2} - 122x + 88x + 2081 - 1936 = 0 \\ \\ \therefore \: {x}^{2} - 34x + 145 = 0 \\ \\ \therefore \: {x}^{2} - 29x - 5x+ 145 = 0 \\ \\ \therefore \: x(x - 29) - 5(x - 29) = 0 \\ (x - 5)(x - 29) = 0 \\ x - 5 = 0 \: or \: x - 29 = 0 \\ \\ \therefore \: x = 5, \: 29[/tex]

So, the length that is cut off will be either 5 cm or 29 cm.

is there any responsible way to use student loans why or why not

Answers

Answer:just use your student loans that you need as a student don’t waste it on games or unnecessary things.

Step-by-step explanation:

2x+3y=19 // 6x+2y=22​

Answers

Answer:

(2, 5 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 19 → (1)

6x + 2y = 22 → (2)

Multiplying (1) by - 3 and adding to (2) will eliminate the x- term

- 6x - 9y = - 57 → (3)

Add (2) and (3) term by term to eliminate x

0 - 7y = - 35

- 7y = - 35 ( divide both sides by - 7 )

y = 5

Substitute y = 5 into either of the 2 equations and solve for x

Substituting into (1)

2x + 3(5) = 19

2x + 15 = 19 ( subtract 15 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 5 )

6. Solve for x!! please help!

Answers

x/2 = -7

=> x = -7 × 2

=> x = -14

Answer:

x=-14

Step-by-step explanation:

[tex]\frac{x}{2} =-7\\\\x=-14\\[/tex]

Solve for x. Leave your answer in simplest radical form. *Giving brainliest*

Answers

Answer:

x= 10.630145

I hope it's helps you

How many times more ?

Answers

Answer:

1.3

Step-by-step explanation:

bc for each time x increases by 1, it multiplies by 1.3

i cant think of any other way to explain it

but   i hope this helped :D

Answer:

1.3 times

Step-by-step explanation:

f(x)= 68 (1.3) ^x

it, means each year, the expected number of squirrels is 1.3 times, the number the year before.

x=0 so, f(0)=68

New x=1, so f(1)= 68(1.3)¹

= 68 × 1.3

f (1)= f(0) × 1.3

So, 1.3 times

OAmalOHopeO

Help with this question please!!!!

Answers

Answer:

I think that the answer is 5

Write an inequality and show on a number line all numbers:
less than 4 but greater than or equal to 0

Answers

Answer:

the inequality is 0<x<4

Step-by-step explanation:

(0,4)

write 3/2 4/5 8/5 in decimal notation

Answers

Answer:

hope it will help you Mark me as a brilliant

Complete the steps to solve the equation. 9 – 4x = 2x 1. Addition property of equality: 9 = 6x 2. Division property of equality: = x

Answers

Answer:

x = 3/2

Step-by-step explanation:

Given:

9 - 4x = 2x

Step 1: Addition property of equality

9 - 4x + 4x = 2x + 4x

9 = 6x

Step 2: Division property of equality:

9 = 6x

9/6 = 6x/6

9/6 = x

x = 9/6

= 3/2

x = 3/2

Check:

9 - 4x = 2x

9 - 4(3/2) = 2(3/2)

9 - 12/2 = 6/2

9 - 6 = 3

3 = 3

If $a$ and $b$ are positive integers such that $\gcd(a,b)=210$, $\mathop{\text{lcm}}[a,b]=210^3$, and $a

Answers

Answer:

[tex]a * b = 210^4[/tex]

Step-by-step explanation:

Given

[tex]a,b>0[/tex]

[tex]gcd(a,b) = 210[/tex]

[tex]lcm(a,b) = 210^3[/tex]

Required

The product of a and b --- missing from the question

To do this, we make use of the following formula:

[tex]a * b = gcd(a, b) * lcm(a, b)[/tex]

So, we have:

[tex]a * b = 210 * 210^3[/tex]

Using the product law of indices, we have:

[tex]a * b = 210^4[/tex]

This means that the product of a and b gives [tex]210^4[/tex]

Can anyone help me with this?

Answers

8.6

Answer:

Solution given:

[tex]\bold{\sqrt{74}=8.60232526704≈8.6}[/tex]

Answer:

[tex]8.6[/tex]

Step-by-step explanation:

Step 1:  Find the approximate value of [tex]\sqrt{74}[/tex]

[tex]\sqrt{74}[/tex]

[tex]\sqrt{74}[/tex] ≈ [tex]8.6[/tex]

Answer:  [tex]8.6[/tex]

help please I'll give brainliest

Answers

Answer:

35

Step-by-step explanation:

6:5

 We need to get the first number to 43

6*7 = 42

Multiply each term by 7

6*7 : 5*7

42  : 35

please help me T-T.......

Answers

Hi

1) f(x)= 0.9 x

2) g(x) = x-100

3) f °g. is first apply g then f. so :

f°g = 0.9 ( x-100) = 0.9x-90

4) g°f. is first apply f then g

so g°f = (0.9x) -100 = 0.9x-100

I let you conclude which is the best deal :)

I NEED HELP ASAPPP!!!! It’s urgentttttt!!!!

Answers

Answer: (x - 2)² + (y - 14)² = 1

Step-by-step explanation:

Concept:

Here, we need to know the idea of the circle formula.

Circle formula: (x - h)² + (y - k)² = r²

Center = (h, k)

Radius = r

If you are still confused, please refer to the attachment below for a graphical explanation.

Solve:

Center = (2, 14)

Radius = 1

Given formula

(x - h)² + (y - k)² = r²

Substitute the value into the formula

(x - 2)² + (y - 14)² = (1)²

Simplify

(x - 2)² + (y - 14)² = 1

Hope this helps!! :)

Please let me know if you have any questions

Can someone find this for me please?

Answers

Answer:

the larger one is 183

Step-by-step explanation:

[tex]x + y = 262 \\ x - y = 104 \\ y = 262 - x \\ x - (262 - x) = 104 \\ x - 262 + x = 104 \\ 2x = 104 + 262 \\ 2x = 366 \\ x = 183 \\ y = 262 - 183 \\ y = 79[/tex]

PLEASE HELP ASAPP :(
Find the area of triangle ABC.

Answer Options:
A. 18.52 units²
B. 12.16 units²
C. 15.14 units²
D. 31.27 units²

Answers

Answer:

Option C, 15.14 units²

Step-by-step explanation:

area of the triangle,

6.82×5.04×sin(61.73)/2

= 15.1365001284..

= 15.14 units² (rounded to the nearest tenth)

The required area of the irregular triangle is 15.14 unit². Option C is correct.

Given that,
A figure of the triangle is shown,
Side AB = a =6.82
Side BC = b = 5.04
Angles, ∠A = 45.03°, ∠B = 61.73°.

What is the triangle?

The triangle is a geometric shape which includes 3 sides and the sum of the interior angle should not be greater than 180°.

What is altitude?

Altitude is perpendicular bisector to the side of the triangle from the opposite vertex of the triangle.

The area of the given triangle can be given as,
Area = 1/2 * a * b sinB
       =  1/2 * 6.82 * 5.04 * sin61.73°
       =  1/2 * 6.82 * 5.04 * 0.88
       =  15.14 unit²

Thus, the required area of the irregular triangle is 15.14 units². Option c is correct.


Learn more about triangles here:
https://brainly.com/question/2773823

#SPJ5

Can you please answer this and don't just give the answers also explain it how you got them? -Thank you

Answers

Answer:

Triangle = 5

Circle = 25

Square = 100

Pentagon = 1600

Rectangle = 155

Step-by-step explanation:

6 x triangle = 3 x 10

Solve for 3 x 10

6 x triangle = 30

Divide both sides by 6

Triangle = 5
•••••••••••••••••••••••••••••••
Triangle x 20 = Circle x 4

Substitute triangle for 5

5 x 20 = Circle x 4

Solve for 5 x 20

100 = Circle x 4

Circle = 100 divided by 4

Circle = 25
•••••••••••••••••••••••••••••••
Circle + triangle = square minus 70

Substitute Circle and Triangle for their values

25 + 5 = square - 70

Solve for 25 + 5

30 = square - 70

Add 70 to both sides

square = 100
•••••••••••••••••••••••••••••••
Square x 8 = 1/2 of pentagon

Substitute square for 100

100 x 8 = 1/2 of pentagon

Solve for 100 x 8

800 = 1/2 of pentagon

Pentagon = 1600
•••••••••••••••••••••••••••••••
Pentagon divided by square = rectangle + 5

Substitute pentagon and square for their values

1600 divided by 100 = rectangle + 5

Solve for 1600 divided by 100

160 = rectangle + 5

Subtract 5 from both sides

Rectangle = 155
••••••••••••••••••••••••••••••••••
Rectangle x rectangle = ?

Rectangle = 155

Rectangle x rectangle = 24025
••••••••••••••••••••••••••••••••••

An Olympic diver starts at 7.5 m above the water. During her dive, she goes
1.5
m below the water. What is the vertical distance the diver travels?

Answers

Given that an Olympic diver starts at 7.5 m above the water, during her dive, she goes 1.5 m below the water, the vertical distance the diver travels is 9 meters.

To determine what is the vertical distance the diver travels the following calculation must be performed:

The initial height must be subtracted from the final height, in order to obtain the difference between the two heights.

1.5 - (-7.5) = X1.5 + 7.5 = X9 = X  

Therefore, the vertical distance the diver travels is 9 meters.

Learn more about this topic in https://brainly.com/question/22089868?referrer=searchResults.

The vertical distance traveled by the Olympic diver is 6 m

The given parameters include:

initial position of the Olympic diver, x₁ = 7.5 m above the waterfinal position of the Olympic diver, x₂ = 1.5 m below the water

The sketch of the Olympic diver's displacement is as follows;

                                   x₁ ---------- 7.5 m

                                         |

                                         |

                                         |

                                         |

                                    ----------- water surface

                                         |

                                         ↓

                                  x₂ ------------ 1.5 m below water surface

The vertical distance from x₁ to x₂  = 7.5 m - 1.5 m = 6 m

Therefore, the vertical distance traveled by the Olympic diver is 6 m

To learn more about distance visit: https://brainly.in/question/7482539

Ross took a survey of his classmates' preferred food as well as recording their genders. The results are in the table below:

Answers

The answer to your question is 30

Answer:

30 people took part in the survey

Step-by-step explanation:

5+7+6+5+4+3= 30

Find the value of -3x + 5,
if –3 + 4x = -19

Answers

Answer:

17

Step-by-step explanation:

Solve the equation for x then plug that into the 1st expression.

-3 + 4x = -19

4x = -19 + 3

4x = -16

x = -4

then

-3x + 5

-3(-4) + 5 = 12 + 5 = 17

On another map, the distance between Saugerties and
Kingston is 2 inches. What would the distance from
Saugerties to Catskill be on this map?

Answers

Answer:

10miles

Step-by-step explanation:

Answer:

I have no clue what is going on wit dis g

Find the slope of the line that passes through (-26, 9) and (32, 71).

Answers

Answer:

[tex]Slope = \frac{31}{29}[/tex]

Step-by-step explanation:

Step 1:  Define the slope formula

[tex]Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

Step 2:  Find the slope

[tex]Slope = \frac{71-9}{32-(-26)}[/tex]

[tex]Slope = \frac{62}{58}[/tex]

[tex]Slope = \frac{31}{29}[/tex]

Answer:  [tex]Slope = \frac{31}{29}[/tex]

• What is the smallest distance, in meters, needed for an airplane touching the runway with a velocity of 360 km/h and an acceleration of -10 m/s2 to come to rest? HELP​

Answers

Answer:

i think ..................

Step-by-step explanation:

society idsbwj ja

If 4x + 2y = 14 and x - 2y = 6, what is the value of y?

Answers

Answer:

y is -1

Step-by-step explanation:

[tex]4x + 2y = 14 - - - (a) \\ x - 2y = 6 - - - (b)[/tex]

(a) + (b):

[tex]5x = 20 \\ x = 4[/tex]

therefore:

[tex]x - 2y = 6 \\ 4 - 2y = 6 \\ 2y = - 2 \\ y = - 1[/tex]

Answer:

y must be -1

Step-by-step explanation:

We are given the system of linear equations

4x + 2y = 14

 x - 2y = 6

and need to find the value of y.  Combining the two equations yields

5x = 20, and so we know that x must be 4.

If x is 4, then the second equation becomes 4 - 2y = 6, or -2y = 2.

Then y must be -1.

Other Questions
Ling must spend no more than $40.00 on decorations for a party. She has spent $10.00 on streamers and wants to buy bags of balloons as well. Each bag of balloons costs $2.50. The inequality below represents x, the number of bags she can buy given the spending limit and how much she has already spent on streamers.10 + 2.5 x less-than-or-equal-to 40Which best describes the number of bags of balloons she can buy? For which pair of functions is the vertex of k(x) 6 units below the vertex off(x)?A. Ax) = x2 and k(x) = x2 + 6B. f(x) = x2 and k(x) = (x+6)2C. Ax) = x and k(x) = (x 6)2D. f(x) = x2 and k(x) = x2 - 6 can someone help?Carmen y Teresa son hermanas que (prepararse) para un evento especial. Nosotras (acostarse) temprano, verdad? dice Carmen. S, y maana yo (ducharse) y (lavarse) el pelo. Despus, yo (secarse) el pelo y (vestirse) con un vestido muy bonito. Yo nunca (prepararse) rpidamente, dice Teresa. Ay, s,! dice Carmen. T siempre (prepararse} primera porque necesitas mucho tiempo para prepararte. El da de la boda Teresa (arreglarse) el pelo y Carmen (pintarse) las uas. Ellas salen para la boda con su familia a las dos de la tarde. A loan of 28,000 is made at 4% interest, compounded annually. After how many years will the amount due reach 48000 or more? Compare and Contrast Report1. What are some things that Lincoln and Washington have in common? In what ways were they alike?2. What are some ways that Lincoln and Washington are different? In what ways do they contrast? The Adventures of Huckleberry Finn, by Mark Twain, first published in 1884. Multiple editions available, including e-texts. The raucous sequel to Tom Sawyer, Huckleberry Finn is the story of a boy's adventures with Jim, a runaway slave, while rafting down the Mississippi River. Considered Mark Twain's masterpiece, the story contrasts the trusting friendship between Huck and Jim to the cruelty of the men and women they meet along the way. The book celebrates freedom in showing Huck's inner conflict as he places himself at personal risk in helping Jim escape Paragraph 1: This paragraph gives information about the book you read. Use the questions below as a guide. Title: How is the title a description of the story? Author: When did the author write the book? What major historical events marked the time? Setting: If the setting is real, what period in history? Main Characters: Are the characters real or imagined? Why is the story an example of fiction? Paragraph 2: Use these questions to help you retell the most important parts of the story in your own words. What is the situation as it stands at beginning of story? What happens to get the story moving? What situation creates the conflict? What problems need to be solved? What things happen to lead you up to the most exciting part of the story? What is the most exciting or tense part of the story? How does the story end? (What is the situation as it stands at the end of the story? How are the problems or conflicts resolved? Who is the main character and how does he or she change throughout the story? Paragraph 3: In the third part of your report, tell what you thought about the book. Imagine that your friends have asked you if they should read the book. What will you tell them? Why? Give good reasons for your choice. What makes the story believable? (Consider conflict, character, setting, plot, and theme.) What makes the story enjoyable? What point does the story seem to be making? (story's theme; author's purpose) What is the author's view of self control in the hit of rage/extreme anger What did states fear that made the Articles of Confederation so important? Tango Company is planning to acquire Delta Company. The additional pre-tax income from the acquisition will be $300,000 in the first year, but it will increase by 2% in future years. Because of diversification, the beta of Tango will decrease from 1.2 to 0.8. Currently the return on the market is 9% and the riskless rate is 4%. What is the maximum price that Tango should pay for Delta Hank is a competitive endurance athlete who weighs 80 kg and trains for less than 4 hours a day. He would like to plan a nutritionally adequate diet that provides enough carbohydrate to maintain his weight and glycogen stores during training and competition. According to expert recommendations, he should consume _____ grams of carbohydrate daily. Please Help!!!Find a value for C that will give the following system no solution: 3x-2y=36x+cy=4 In a randomly selected sample of 100 students at a University, 81 of them had access to a computer at home. Give the value of the standard error for the point estimate. Read the text and answer the following questions:1. Kolman shop was once a very rich townTrueFalse2. The UFO buildings are a popular tourist attraction in Taipei.TrueFalse3. Fordlandia became a problem because there was nowhere for the factory workers to live.TrueFalse4. The Ford family sold Fordlandia for $20 million.TrueFalse hello! I'm having a bit of trouble trying to solve this, could anyone help explain it to me? 01:55:07The point-slope form of the equation of the line that passes through (-9, -2) and (1, 3) is y 3 = {(x - 1). What is theslope-intercept form of the equation for this line?O y = 3x+2O y= 2x-4O y=+*+O y = 3x - 2 The U.S. average for state and local taxes for a family of four is $4172. A random sample of 20 families in a northeastern state indicates that they paid an annual amount of $4560 with a standard deviation of $1590. At = 0.05, is there sufficient evidence to conclude that they pay more than the national average of $4172? In addition to the structure of the letter, consider the organizational structure you'll use to present your ideas. A logical structure will help your writing be more coherent. Keep your purpose, audience, topic, and ideas in mind as you decide. What organizational structure will you use to write your letter? please help I will give brainliest 1) What is the opposite of adding 5?2) What is the opposite of subtracting 20?3) What is the opposite of multiplying by 1/2?4) What is the opposite of dividing by 10? Danni placed $5700 in a savings account which compounds interest continuously at a rate of 2.1%. How much will she have in the account after 4 years