Mathematics High School

Does y=-2x represent a function

Answers

Answer 1
yeah
.......................

Related Questions

The perimeter of a rectangular backyard is 146 feet. It is 40 feet long. How wide is it?

Answers

9514 1404 393

Answer:

  33 ft

Step-by-step explanation:

The perimeter formula for a rectangle is ...

  P = 2(L +W)

Filling in the given numbers, we have ...

  146 = 2(40 +W)

  73 = 40 +W . . . . . . . divide by 2

  33 = W . . . . . . . . . . . subtract 40

The backyard is 33 feet wide.

Share 20 into the ratio 1:3

Answers

Answer:

5:15 :))

Step-by-step explanation:

you would do 1+3(=4) and then divide 20 by 4(=5)

5×1=5

5×3=15

write a story problem that can be represented with the following equation:
7.5x + 15 = 30

Answers

Answer:

I went to a concert with my friends and every ticket costs $7.50 and I also had to pay a fee of $15.

( HELP! ) Charlie works at Jupiter donuts. He makes $12 per hour and gets a monthly bonus of $150. Last month, Charlie earned $390. Which equation can be used to find the number of hours (h) Charlie worked?

Answers

$390-$150/$12=20 h.

The parking lot is 4 km wide. The area of the parking lot is 24 kilometers. What is length of the parking lot?

Answers

Answer: 6km


Reason: The area of a rectangle is length times width equals area so to find length from with in the area you divide area by height. 24/4=6

Answer:

6

Step-by-step explanation:

divide 4 and 24

 NEED HELP ASAP ILL GIVE YOU BRAINLIST
A family just removed a big tree from their backyard. The diameter of the circular hole left behind is 7 feet across. Approximately how many square feet of grass will the family need if they want to cover the area where the tree once was?


A
22 ft²
B
39 ft²
C
44 ft²
D
154 ft²

Answers

The answer is c I hope this helps

The family needs to cover 39ft² area of grass.

What is Area of Circle?

The area of a circle is the amount of space enclosed within the boundary of a circle. The region within the boundary of the circle is the area occupied by the circle.

Here, Diameter = 7 ft.

          Radius = 7/2 ft. = 3.5 ft.

The Area of Circle = πr²

              A = 3.14 X (3.5)²

              A = 3.14 X 3.5 X 3.5

             A = 38.465 ft² ≈ 39 ft²

Thus, the family needs to cover 39ft² area of grass.

Learn more about Area of Circle from:

https://brainly.com/question/22964077

#SPJ2

Ms. O'Rourke has graded 20% of her 150 students'
papers. How many papers does she still need to finish
grading?

Answers

Answer:

150−30=120 papers are still left to do

Step-by-step explanation:

150−30=120 papers are still left to do

PLEASE HURRY !! VERY URGENT.

Answers

Answer:

If the height is h, then

h/65=sin70 so that means h=65sin70=61.08m approximately

Step-by-step explanation:

What is the equation of the line that passes through (5,-3) and (3,7)

Answers

Answer:

-5x +22

Step-by-step explanation:

PLEASE HELP ME, ANSWER ONLY IF YOU KNOW AND IF YOU CAN ADD THE EQUATION
(Whoever adds the equation and it seems correct will earn brainliest.)

A group of friends wants to go to the amusement park. They have no more than $175 to spend on parking and admission. Parking is $12.50, and tickets cost $16.25 per person, including tax. Write and solve an inequality which can be used to determine xx, the number of people who can go to the amusement park.

Answers

Answer:

12.5 + (16.25 * 1.0716)x ≤ 175

Step-by-step explanation:

The state tax is approximately 7.16%, so it's why I multiplied 16.25 with 1.0716.

AB=
Round your answer to the nearest hundredth.
A
20
?
B
3
C

Answers

Answer:

AB= 8.77

AC= 8.24

angle a= 70

Write the equation in slope intercept form of the line passing through the following points (0,5) and (-5, -1).

Answers

Answer:

y = 6/5x

Step-by-step explanation:

1. [tex]y = \frac{-1-5 }{-5-0}[/tex]

2. subtract the two number on the top of the fraction bar to get 6

3. do the same for the denominator to get 5

4. your final answer is [tex]\frac{6}{5}[/tex]

» Seven more than a number, 2, is at most 20.
1) Which inequality represents this statement?
7 – < 20
7 + x < 20
7 - 2 > 20
7 + x > 20

Answers

Answer:

i believe its 7 + x < 20

Step-by-step explanation:

The inequality function that represent the given statement should be 7 + x < 20. The second option is correct.

What is the inequality function?

It is the relationship  type that shows the relationship with the graph.

Since the statement like

Seven more than a number, 2, is at most 20.

So its inequality function be like

7 + x < 20

hence, the second option is correct.

And, the rest of the options are incorrect.

Learn more about inequality here: https://brainly.com/question/11211729

help asap due in 5 min.​

Answers

Answer:

3

Step-by-step explanation:

just trust me hehehehhehehehhe

Find the unit rate. Enter your answer as a mixed number. 7 1 A fertilizer covers 8 square foot In = hour. The unit rate is square feet per hour.​

Answers

Answer:

Step-by-step explanation:

7 1 A fertilizer covers 8 square foot In = hour. The unit rate is square feet per hour.​

4) The path of a satellite orbiting the earth causes it to pass directly over two
tracking stations A and B, which are 60 km apart. When the satellite is on one side of
the two stations, the angles of elevation at A and B are measured to be 86.4 ° and
85 °, respectively.
Find how far the satellite is from station A and how high the satellite is above the
ground. Round your answers to 2 decimal places.

Answers

Answers:

Satellite is approximately 2446.43 km from station A.Satellite is approximately 2441.61 km above the ground.

=========================================================

Explanation:

I'm assuming tracking stations A and B are at the same elevation and are on flat ground. In reality, this is likely not the case; however, for the sake of simplicity, we'll assume this is the case.

The diagram is shown below. Points A and B describe the two stations, while point C is the satellite's location. Point D is on the ground directly below the satellite. We have these lengths

AB = 60 kmAD = xCD = h

Focusing on triangle ACD, we can apply the tangent rule to isolate h.

tan(angle) = opposite/adjacent

tan(A) = CD/AD

tan(86.4) = h/x

x*tan(86.4) = h

h = x*tan(86.4)

We'll use this later in the substitution below.

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

Now move onto triangle BCD. For the reference angle B = 85, we can use the tangent rule to say

tan(angle) = opposite/adjacent

tan(B) = CD/DB

tan(B) = CD/(DA+AB)

tan(85) = h/(x+60)

tan(85)*(x+60) = h

tan(85)*(x+60) = x*tan(86.4) .............  apply substitution; isolate x

x*tan(85)+60*tan(85) = x*tan(86.4)

60*tan(85) = x*tan(86.4)-x*tan(85)

60*tan(85) = x*(tan(86.4)-tan(85))

x*(tan(86.4)-tan(85)) = 60*tan(85)

x = 60*tan(85)/(tan(86.4)-tan(85))

x = 153.612786190499

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

We'll use this approximate x value to find h

h = x*tan(86.4)

h = 153.612786190499*tan(86.4)

h = 2441.60531869599

h = 2441.61 km  is how high the satellite is above the ground.

Return to triangle ACD. We'll use the cosine rule to determine the length of the hypotenuse AC

cos(angle) = adjacent/hypotenuse

cos(A) = AD/AC

cos(86.4) = x/AC

cos(86.4) = 153.612786190499/AC

AC*cos(86.4) = 153.612786190499

AC = 153.612786190499/cos(86.4)

AC = 2446.43279498247

AC = 2446.43 km is the distance from the satellite to station A.

If I spend 40$ on 5 pounds on concrete. What is the unit rate in dollars per pound

I need the answer and please explain how unit rate works cause I don't know lol

Answers

Answer:

8$/lb

Step-by-step explanation:

because 8 x 5 is 40 there for each pound would be 8$ if there are 5 pounds

The correct answer is $8 per pound

Which graph represents the function?

f(x)=1x+1−2

IS MY ANSWER CORRECT???

Answers

Answer:yes

Step-by-step explanation:

Answer:

yes it is

Step-by-step explanation:

Solve:
-1/4a - 4 = 4

Answers

The answer would be a=-32

Answer:

a = -12

Step-by-step explanation:

-1/4a - 4 = 4

(-1/4a / -1/4) - 4 = (4 / -1/4)

a - 4 = -16

(a - 4 + 4) = -16 + 4

a = -12

I might have made some mistake but if my memory is right this is how you solve it.

The population of a school increased by 16%, and now the population is 667. What was the
population before the increase?

Answers

Answer:

575

Step-by-step explanation:

[tex]667 \div (1 + 16\%) = 575[/tex]

-4 = 5 - x. SHOW ALL STEPS!

Answers

Answer:x=9

Step-by-step explanation:

-4=5-x

Add x on both sides

x-4=5

Add 4 on both sides

x=5+4

Solve

x=9

Answer:

x = 9

Step-by-step explanation:

-4 = 5 - x

5 - x = -4

-x = -4 - 5

-x = -9

x = -9/-1

x = 9

A cell phone provider offers a plan that costs ​$40 per month plus ​$0.10 per text message sent or received. A comparable plan costs ​$50 per month but offers unlimited text messaging.. How many text messages would have to be sent or received in order for the plans to cost the same each​ month?

Answers

9514 1404 393

Answer:

  100

Step-by-step explanation:

The $10 difference in base cost will pay for $10.00/$0.10 = 100 text messages.

Please help! image is shown below

Answers

The top line tells you this two figure is similar.

What does this mean? Similar figures have the exact same corresponding angles and proportionate sides.

You can find their side ratio with 38 and 15.2.

38 ÷ 15.2 = 2.5

To find x, use 55 ÷ 2.5 and you get 22 as your answer.

i don’t understand.
online school is hard

Answers

It’s hard my dude but don’t give up

in Mike’s house are broken now. His father replaced 3/14 of the broken) .4 windows. Uncle Jack replaced 1/7 of the broken windows. Who replaced the greater fraction of the broken windows?

Answers

Answer:

Mike's father produces a greater fraction.

Step-by-step explanation:

Amount of windows replaced by Mike's father = 3/14

Amount of windows replaced by Uncle Jack = 1/7

This 1/7 can also be expressed as 2/14

Now, since they both have the same denominators, it means that the higher the numerator the greater than the other fraction.

Thus, 3/14 is greater than 2/14.

Hence, Mike's father replaced a greater fraction of the broken windows.

HURRY WILL MARK YOU BRAINLIEST

Answers

Answer:

x=11/4

Step-by-step explanation:

4x+5=8x-6

4

x

=  8

x

−

1

1                <simplify

-8x -8x

-4x=-11                

x=11/4

11/4 there your welcome

factorise 49m²-84mn+36n² using the identity x²+(a+b)x+ab=(x+a)(x+b)​

Answers

Answer:

(7m-6n)(7m-6n)

Step-by-step explanation:

Given the expression 49m²-84mn+36n², this can also be written as;

49m²-84mn+36n²

= 7²m² - 84mn + 6²n²

= (7m)²-2*7m*6n+ (6n)²

= (7m-6n)²

= (7m-6n)(7m-6n)

Hence the expanded form is  (7m-6n)(7m-6n)

The slope below the line is -1/7. Write a point-slope equation of the line using the coordinates on the labeled point.

Answers

Honestly bro I wish I could help you but I just hope someone comes along and can help. Good luck!

Answer: y – 3 = –1/7(x – 3)

The captain of the cheerleading team, Alicia, counted that they washed 58 cars. Determine if this is a reasonable number of cars that could've been washed.

Answers

Answer:

yes but no

Step-by-step explanation:

um well that is a lot by not if there is a bunch of people doing it.

Alexa's Tea Shop has caffeinated tea and decaffeinated tea. The tea shop served 100 teas in all, 50 of which were caffeinated. What percentage of the teas were caffeinated?

Answers

Answer:

50% would be the answer!

Answer:

50%

Step-by-step explanation:

we know that 50 out of the 100 teas are caffeinated. And 50/100 is 50%

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Read line 8 from the poem I Hear America Singing. The delicious singing of the mother, or of the young wife at work, or of the girl sewing or washing, What does the poet mean when he describes the womens singing as delicious? A The poet is making a contest between the womens singing and the mens singing. B The poet is comparing a good meal to that of the singing quality of the women. C The poet is explaining that the womens songs are enjoyable to hear. D The poet is explaining that the songs have different meanings for the women than for the men. Need help asap In 800, Charlemagne aided Pope Leo III by putting down a rebellion in Rome. In return, the Pope A. gave him the title of Roman Emperor. B. supported his takeover of Constantinople. C. named him King of the Franks. D. allowed him to occupy Rome. In the Arab Empire, Muslims did not force Jews and Christians to convert to Islam.Which detail most likely explains that policy? A Jews, Christians, and Muslims have the same prophets.B Judaism, Christianity, and Islam share fundamental beliefs.C Jews, Christians, and Muslims practice the same Five Pillars.D Judaism, Christianity, and Islam originated in the same geographic area. Force (N) = 250Mass (kg) = 221Acceleration (m/s^2) = ? Is Mesopotamia Located North of the Arabian Desert? What Geologic feature allows for humans to access oil and natural gas? What nutrients from foodare getting passed fromthe inside of the intestines(lumen) across the lining? Help thank you please balance de CO2 + H2O A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide.Which inequality can be used to determine the squirrels speed?a. 3r greater than 34b. 3r less than 34c. r/3 greater than 34d. r/3 less than 34 Please help im struggling with this unit pls help How was the university of georgia established and why? Giving brainliest!!!!! 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What will you say to her? What can be said to a person who resigns over aconflict with her conscience? Using the space below, write her a letter in response to her resignation.After you complete your letter, read the actual letter written by Mrs. Henry M. Robert, Jr., the presidentgeneral of the DAR. Compare the letters; pointing out how you think her letter could have been more effective and repentant.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________ Help me pls pls pls 30 points on the line for who get it correct and brainlist it is 6th grade science it not college I might put it in the wrong subject so yea help pls :)