PLEASE HELP
Evaluate the function f(x) = (2x)2 - 1 when x = 2 and when x = -1

Answers

Answer 1

Answer:

F(x)=1

Step-by-step explanation:

F(2)=(2x-1=-2)2-1= 1= -1


Related Questions

Select the correct answer.
Which of the following types of dance has very strict rules and techniques?
A.
Hip Hop
B.
Ballet
OC.
Tap
OD.
All of the above
Reset
Next

Answers

i’m not completely sure but i think it’s all of the above ?

Its Ballet

edge 2020

14 butter cookies 7 oatmeal cookies

Answers

Answer:

what?

Step-by-step explanation:

can you give me some more details


Pleaseee helpppp!!!!! I keep getting this answer wrong on the test :(

Answers

Next time study more! I know its hard but you can do it keep trying ur best :)

A band earned $550.00 for playing at a concert. Their manager takes 15% of the money earned for each show and the band is donating 20% of the money earned to charity. How much money is left for the band to split?

Answers

Answer:

The amount of the money earned left for the band to split is $357.5

Step-by-step explanation:

The amount the band earned for playing at the concert = $550.00

The percentage of the money earned taken by the manager = 15%

The percentage of the money earned the band is donating to charity = 20%

The amount of the money earned the manager takes = 15/100 × 550 = 82.5

∴ The amount of the money earned the manager takes = $82.5

The amount of the money earned that is donated to charity = 20/100 × 550 = 110

∴ The amount of the money earned that is donated to charity = $110

The amount of the money earned left for the band to split = $550 - $82.5 - $110 = $357.5.

jojos bizzare adventure

Answers

Sorry, but I haven’t seen it yet, any other anime tho?

Answer:

nice anime lol

Step-by-step explanation:

I like aot better

Does anyone else need to do Ed.genuity?

Answers

No, if you don’t mind what is that?


Autumn went to the store with $20 in her bank account. She spent jeans that cost $14 and a t-shirt that costs $8. How much money is in her bank account now?

Answers

Answer:

She is 2 dollars in debt. Or $-2

Step-by-step explanation:

14 + 8= 22. She only had 20 dollars so the purchase she made left her with $-2

PLEASE HELPPPPP PLEAAASEE

Answers

Answer:

11%

Step-by-step explanation:

The full circle graph represents 100% of the given population. All populations are given except for "three or more." Adding all percentages of each population should add up to 100%.

No absences (none): 23%

One absence: 45%

Two absences: 21%

Three more absences: unknown.

Let the variable x represent the unknown population.

23% + 45% + 21% + x = 100%

Combine like terms.

89% + x = 100%

Subtract 89% from both sides.

x = 11%

To put it more simply, subtract all the percentages from 100% to get the percent of the missing population. 100 - 23 - 45 - 21 = 11

11% of students had three or more absences.

hello people does anyone

Answers

does anyone what BEHKWNRHS

Answer:

The answer is 24. Yes we do.

help me with this please

Answers

Answer:

non of these answers are correct.

what is 10(n−2p+2) because i dont know the answer

Answers

10n - 20p + 20

could i get a heart and branliest

Answer:

10n-20p+20

Step-by-step explanation:

10(n-2p+2)

n(10)-2p(10)+2(10)

10n-20p+20

I really need some help somebody

Answers

The answer is 3. This is because, where are you see f(x) and instead of the X it is -1, then X equals -1 and once you find the point of X negative one you’ll find the y point which is what it is looking for

help me im not mentally gifted in math.

Answers

Answer:

Not sure 737

Step-by-step explanation:

Answer: It's  3 x 3 x 5 x 13 = 585

Step-by-step explanation:

HOPE THIS HELPS!!!! : )

which of the following is not a congruence theorem or postulate A. ASA B. SSS C. SAS D. AAA

Answers

Answer:

D. AAA is not a congruence postulate

Step-by-step explanation:

Choose from the drop-down menus to match the trigonometric expression with its value. Sine StartFraction 2 pi Over 5 EndFraction cosine StartFraction pi Over 10 EndFraction + cosine StartFraction 2 pi Over 5 EndFraction sine StartFraction pi Over 10 EndFraction = Cosine 13 degrees cosine 47 degrees minus sine 13 degrees sine 47 degrees = Sine StartFraction 2 pi Over 5 EndFraction cosine StartFraction 8 pi Over 5 EndFraction + cosine StartFraction 2 pi Over 5 EndFraction sine StartFraction 8 pi Over 5 EndFraction =

Answers

Answer:

1

0.5

0

Step-by-step explanation: got it right on edge

Answer:

1

0.5

0

Step-by-step explanation:

just took it

Lisa had a bag of 600 candies. There were mints, caramels, and lemon drops in the bag. Lisa took out 15 pieces of candy, and 3 were caramels. Based on this information, how many caramels are in the bag?

Answers

Answer:

200 caramels im sooo sorry if it's wrong..

Step-by-step explanation:

i just divided 600 by 3.

Sandy has 27 roses, 9 daisies, and 45 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?

Answers

Answer:

The greatest number of flowers that could be in a bouquet is 9 flowers.

Each bouquet would contain: 3 roses, 1 daise and 5 tulips

Step-by-step explanation:

Sandy has 27 roses, 9 daisies, and 45 tulips. She wants to arrange all the flowers in bouquets. Each bouquet has the same number of flowers and the same type of flower. What is the greatest number of flowers that could be in a bouquet?

We solve the above question using Greatest Common Factor method.

We find the factors of 27, 9 and 45

The greatest common factor is the highest factor common to these 3 number

Hence:

The factors of 9 are: 1, 3, 9

The factors of 27 are: 1, 3, 9, 27

The factors of 45 are: 1, 3, 5, 9, 15, 45

Then the greatest common factor is 9.

Therefore, the greatest number of flowers that could be in a bouquet is 9 flowers

Each bouquet would contain

For 27 roses = 27/9 bouquet = 3 roses

For 9 daisies = 9 daisies/9 bouquet = 1 daisies

For 45 tulips = 45 tulips/9 bouquet = 5 tulips

Here are the instruction plz help asap
Part 1
You will need to measure five different people. Record your measurements on a piece of paper. Using a tape measure or ruler, measure the length (in inches) of a person’s left foot and then measure the length (in inches) of that same person’s forearm (between their wrist and elbow). Refer to the diagrams below. You will have two measurements for each person.

(An easy way to measure the length of a foot is to have your subject stand on a piece of paper. Then, trace their foot and measure the outline once they move off the paper.)

To measure the forearm, measure inside the arm, between the wrist and the elbow.




Part 2
Organize your data and find the rate of change.

Create a table of the measurements for your data. Label the forearm measurements as your input and the foot measurements as your output.

Select two sets of points and find the rate of change for your data.

Describe your results. If you had to express this relation as a verbal statement, how would you describe it?
Part 3
Compare rates of change.

The equation below can be used to find the length of a foot or forearm when you know one or the other.

(length of the foot) = 0.860 • (length of the forearm) + 3.302

If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.

Using this equation, how long would the foot of a person be if his forearm was 17 inches long?

What is the rate of change of the equation from Part A?

Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?

Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
For this option you will submit the details from all three parts. Submit your measurements, the table, and description that you created in Parts 1 and 2. Submit your answers to the questions from Part 3.

Answers

Answer:

again please don't just straight up copy it just use it as a base please also i tried my best and don't know if i got it right

Step-by-step explanation:

Part 2

Organize your data and find the rate of change.

I’m sorry i didn’t know how to make a table so i just did this  

Person number 1- Left foot is 9 inches Forearm is 8.5 inches

Person number 2- Left foot is 7.5 inches Forearm is 7 inches

Person number 3- Left foot  is 11 inches Forearm is 10.5 inches

Person number 4- Left foot: is 10 inches Forearm is 9.5 inches

Person number 5- Left foot  is 6 inches Forearm is 5.5 inches

The rate of change equals y=x-0.5

I believe that it's a function because there is a relationship between 2 variables.

Part 3

Compare rates of change.

The equation below can be used to find the length of a foot or forearm when you know one or the other.  

(length of the foot) = 0.860 • (length of the forearm) + 3.302

If you let y = length of the foot and x = length of the forearm, this equation can be simplified to

y = 0.860x + 3.302.  

Using this equation, how long would the foot of a person be if his forearm was 17 inches long?

i don’t know how to type all my formulas and work so i'm just going to say the answer i got the rate of change = 0.86x or y=0.86x+3.302  

What is the rate of change of the equation from Part A?

For Part A i got y=x-0.5 and that part A has the greater rate of change.

 

Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?

Well, the values have to be different because there are different rates of change and different linear coefficients; and also each input value will result in a different output value because they all have different parameters as well.  

Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.

Yes, it is a function because each input from part A fits well together with the output on the other set, which matches the definition of a function.

 

Answer:

11.9

Step-by-step explanation:

1 -1 2 :4
0 1 -1 :2
0 O 1 : -2

Answers

What exactly is the question?

-4/5 : 1/3 helppppppp​

Answers

Answer: -12/5

Step-by-step explanation: 4/5/3 = -4/5 *3 then multiply the numbers 5 * 3 = 15  =-4/15

Solve for x
Please show the steps
The answer is 10

Answers

Answer:

x = 10

Step-by-step explanation:

Since ΔCDE ~ ΔQRS, we can find the actual length of x + 8 first before finding the value of x.

Length of x + 8 = [tex]\frac{12}{20}[/tex] × 30

                         = 18

x + 8 = 18

x = 18 - 8

x = 10

PLEASE I NEED HELP ASAP, WILL GIVE BRAINLIEST

What do you call the origin, X-axis, and y-axis in the polar coordinate system?​

Answers

Answer:

coordinate plane?

Step-by-step explanation:

.

Answer:

In polar coordinates the origin is often called the pole. Because we aren't actually moving away from the origin/pole we know that r=0 . However, we can still rotate around the system by any angle we want and so the coordinates of the origin/pole are (0,θ)

Step-by-step explanation:

PLEASE I NEED HELP ON THIS ONE TOO THANK YOU BRAINLY IF CORRECT TYSM PLEASE HELP
Which organization is a major part of the executive branch?
A. The House of Representatives
B. The U.S. Senate
C. The cabinet
D. The Supreme Court

Answers

Answer:

C. The cabinet

Step-by-step explanation:

The executive branch besides the president also includes the advisors that help the president make decisions.

The House of Representatives and U.S. Senate are part of the Legislative Branch (Law and Order).

The Supreme Court is the only organization that makes up the Judicial Branch.

how do i graph this? plz help

Answers

Step-by-step explanation:

So this is Slope intercept form. Or y = mx+b

M is the slope, b is the y intercept.

Now. We have 5/3 as the slope, or y/x, and -9 and the y intercept.

Start from the point (0,-9) (y intercept)

Go up 5 (In 5/3)

Go to the right 3 (in 5/3)

And graph where that lands.

Answer:

(0,-9) and (3,-4)

Step-by-step explanation:

the first point would go to -9 on the y axis

then the second one would go from that point (0,-9) go up 5 and go to the right 3 getting you the second point of (3,-4)

What is the slope of the line that passes through the points M (4,-5) and N (0, -8)?

A.) -3/4
B.) 13/4
C.) -4/3
D.) 3/4​

Answers

Answer:

D. 3/4

Step-by-step explanation:

using the y2-y1/x2-x1 to find the slop: -8--5/0-4 = 3/4

Answer:D

yee

Step-by-step explanation:

A music group expects to sell a new compact disc (CD) at the rate R(t)=20,000e−0.12t CDs per week, where t denotes the number of weeks since the CD was first released. To the nearest thousand, how many CDs are expected to be sold during the first 12 weeks after the release?

Answers

Answer:

4739 CDs

Step-by-step explanation:

Given the function that models the rate at which the disc is sold expressed as;

R(t)=20,000e^−0.12t

t is the number of weeks since the CD was first released

We are to look for the number of CDs that are expected to be sold during the first 12 weeks after the release. To do this, you will simply substitute t = 12 into the modeled function and get R(12) as shown;

R(t)=20,000e^−0.12t

R(12)=20,000e^−0.12(12)

R(12)=20,000e^−1.44

R(12)=20,000(0.2369)

R(12) = 4738.56

Hence the total number of CDs expected to be sold to nearest thousand is 4739 CDs

Answer:

127,000

Step-by-step explanation:

you take the integral from 0 to 12 of R(t)

Felicia wanted to find the number of boys in the school band if 30% of the 50 students are boys. Is her answer correct? Explain why or why not.

Answers

Answer:

Creo que con 15

Step-by-step explanation:

50 -------> 100%

X ---------> 30%

X = (50*30)/100

X= 15 boys

Sample:

No, Felicia’s answer is not correct. She should have divided by 2, not multiplied. 30 divided by 2 is 15. So 15 of the 50 students in the band are boys.

17q=476 Solve for q​

Answers

Answer: The answer is q = 28.

Rectangle ABCD is transformed to A'B'C'D' by a
dilation.
What is the scale factor used for the dilation?
A 1/6
B 1/3
C 3
D 6

Answers

Answer:

c. 3

Step-by-step explanation:

You just multiply the pre image points by 3 and you get the image.

Answer:

C. 3

Step-by-step explanation:

If you put A, B, or D, you get less than a 100

I NEED HELP‼️
Select all relations that are functions.
{(3,2), (5,8), (2,-2)}
{(4,-2),(4,-3),(4,6)}
{(-1,2),(-2,2),(-3,2),(-4,2)}
{(-7,5).(6,-3).(5,8)}

Answers

Answer:

All but the second one

Step-by-step explanation:

The rule of a function is that you can't have the same x values in an expression. You can have multiple y values but not multiple x values.

Other Questions
A metal is found that has a mass of 27g and will displace 6mL of water. Calculate its density and identify the metal. Which issue was a cause of the French Revolution?A) ineffective rule of Napoleon BonaparteB) nationalization of the ChurchC) outrage over the use of the guillotine by the Committee of Public SafetyD) demand of the Third Estate for more political power was unoka the best drummer True or false fat weighs more than muscle and bone true or false during this time as ruler, Ashoka became more violent and warlike please;( urgent CuSO45H2O is blue Read the excerpt below and then answer the question that follows:It all began with Effie's getting something in her eye. It hurt very much indeed, and it felt something like a red-hot sparkonly it seemed to have legs as well, and wings like a fly. Effie rubbed and criednot real crying, but the kind your eye does all by itself without your being miserable inside your mindand then she went to her father to have the thing in her eye taken out. Effie's father was a doctor, so of course he knew how to take things out of eyes.When he had gotten the thing out, he said: "This is very curious." Effie had often got things in her eye before, and her father had always seemed to think it was naturalrather tiresome and naughty perhaps, but still natural. He had never before thought it curious.Effie stood holding her handkerchief to her eye, and said: "I don't believe it's out." People always say this when they have had something in their eyes."Oh, yesit's out," said the doctor. "Here it is, on the brush. This is very interesting."Effie had never heard her father say that about anything that she had any share in. She said: "What?"The doctor carried the brush very carefully across the room, and held the point of it under his microscopethen he twisted the brass screws of the microscope, and looked through the top with one eye."Dear me," he said. "Dear, dear me! Four well-developed limbs; a long caudal appendage; five toes, unequal in lengths, almost like one of the Lacertidae, yet there are traces of wings." The creature under his eye wriggled a little in the castor oil, and he went on: "Yes; a bat-like wing. A new specimen, undoubtedly. Effie, run round to the professor and ask him to be kind enough to step in for a few minutes.""You might give me sixpence, Daddy," said Effie, "because I did bring you the new specimen. I took great care of it inside my eye, and my eye does hurt."The doctor was so pleased with the new specimen that he gave Effie a shilling, and presently the professor stepped round. He stayed to lunch, and he and the doctor quarreled very happily all the afternoon about the name and the family of the thing that had come out of Effie's eye.But at teatime another thing happened. Effie's brother Harry fished something out of his tea, which he thought at first was an earwig. He was just getting ready to drop it on the floor, and end its life in the usual way, when it shook itself in the spoonspread two wet wings, and flopped onto the tablecloth. There it sat, stroking itself with its feet and stretching its wings, and Harry said: "Why, it's a tiny newt!"The professor leaned forward before the doctor could say a word. "I'll give you half a crown for it, Harry, my lad," he said, speaking very fast; and then he picked it up carefully on his handkerchief."It is a new specimen," he said, "and finer than yours, Doctor."It was a tiny lizard, about half an inch longwith scales and wings.So now the doctor and the professor each had a specimen, and they were both very pleased. But before long these specimens began to seem less valuable. For the next morning, when the knife-boy was cleaning the doctor's boots, he suddenly dropped the brushes and the boot and the blacking, and screamed out that he was burnt.And from inside the boot came crawling a lizard as big as a kitten, with large, shiny wings."Why," said Effie, "I know what it is. It is a dragon like the one St. George killed."And Effie was right. That afternoon Towser was bitten in the garden by a dragon about the size of a rabbit, which he had tried to chase, and the next morning all the papers were full of the wonderful "winged lizards" that were appearing all over the country. The papers would not call them dragons, because, of course, no one believes in dragons nowadaysand at any rate the papers were not going to be so silly as to believe in fairy stories. At first there were only a few, but in a week or two the country was simply running alive with dragons of all sizes, and in the air you could sometimes see them as thick as a swarm of bees. They all looked alike except as to size. They were green with scales, and they had four legs and a long tail and great wings like bats' wings, only the wings were a pale, half-transparent yellow, like the gear-boxes on bicycles.Question:How would you summarize the events in the story so far? Be sure to use details from the text to support your answer. will mark brainliest for correct answer using y=mx+b find the slope for7) 8x + 3y = 9 Consider this equation.7.8 + 2(0.75m + 0.4) = -6.4m + 4(0.5m - 0.8)Mia solved the equation and determined that m = 2. Is she correct?She is incorrect because when substituting 2 for m the result was a true statement. She is incorrect because when substituting 2 for m the result was a false statement.She is correct because when substituting 2 for m the result was a true statement.She is correct because when substituting 2 for m the result was a false statement. Put 1-8 in order to make a conversation. (help me out)1. Il est sur la table, docteur.2. merci docteur. Ma mere va aller la chercher a la pharmacie.3. Bon, je vais prendre ta temperature. Ou est la thermometre?4. Je pense que j'ai la grippe. J'ai de la fievre.5. Non, docteur, je ne me sens pas bien.6. Qu'est-ce qui ne va pas?7. ah oui... tu as vraiment da la fievre! je vais te faire une ordonnance pour des antibiotiques.8. Bonjour mon petit, ca va? Select the correct answer.Tires need to be regularly:A. ReplacedB. RotatedC. Both A and BD. None of the above What challenge did the newly independent states face? what is 3^6 x 3? Plz show how you solved it! what is a receptacle What is the range in interval notation? how many essential parts are in the plot which could be the name of a plane? how do the ears and voice work together? PLZ HELP ASAP WILL MAKE BRAINLIEST FOR THE BEST ANSWERWhat landmark was Bartolomeu Dias the first European to reach?a) Straits of Maellanb) Northwest Passagec) tasmaniad) Cape of Good hope