How can you find f(2) if f(x) = 3x2 – 2?

a. Square 2. Subtract 2 from the result, and then multiply by 3.

b. Square 2. Multiply the result by 3, and then subtract 2.

c. Multiply 2 by f.

d. Multiply 2 by 3, square the result, and then subtract 2.

Answers

Answer 1

Answer:

b

Step-by-step explanation:

Answer 2

The square of 2 and the resultant is multiplied by 3 then subtract by 2. Then the correct option is B.

What is a function?

A function is an assertion, concept, or principle that establishes an association between two variables. Functions may be found throughout mathematics and are essential for the development of significant links.

The function is given below.

f(x) = 3x² - 2

The value of the function at x = 2 will be given as,

f(2) = 3(2)² - 2

The square of 2 and the resultant is duplicated by 3 then, at that point, taken away by 2. Then, at that point, the right choice is B.

More about the function link is given below.

https://brainly.com/question/5245372

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Related Questions

simplify the expression. eliminate negative exponents (x^2)(x^7)(x^-3) =

Answers

x⁶; multiplying monomials means adding their exponents in this case.

Solve for f.

f+0.2=−3

Answers

Subtract 0.2 by both sides and the your answer is f = -3.2

Answer:

the answer is f=-3.2

Step-by-step explanation:

because with solving linear equations you have to do the opposite of what your doing do like  f+0.2=−3 since your adding you want to subtract instead you want to subtract on both sides so we know 0.2-0.2= 0 so 0.2- -3= -3.2 so that gives us our answer -3.2

PLS HELP ASAP!

which two data sets show the most overlap?​

Answers

The answer is D because all of the dots are in the same place except for 2.

Answer:

Step-by-step explanation:

d

What percent of 75 is 33

Answers

Answer:

33 is 44% of 75

Step-by-step explanation:

First step:

Calculate, what fraction of 75 is 33:

[tex]\dfrac{33}{75}=\dfrac{33:3}{75:3}=\dfrac{11}{25}[/tex]

Second step:

Convert to the percent:

[tex]\dfrac{11}{25}\cdot100\%=(11)(4\%)=44\%[/tex]

33 is 44% of 75.

To determine what percent of 75 is 33, you can use the formula: (part/total) × 100. In this case, the part is 33 and the total is 75.

First, divide 33 by 75: 33 / 75 = 0.44.Next, convert the decimal to a percent by multiplying by 100: 0.44 × 100 = 44%.

Thus, 44% of 75 is 33.

Probability Question​

Answers

To find the probability that A occurs given B occurs, multiply the Probability of A by the probability of B.

3/4 x 5/8 = 15/32

A circus has 10 performers, of which 4 are magicians.

What is the probability that a randomly selected performer will be a magician?

Simplify your answer and write it as a fraction or whole number.

P(magician) =

Answers

Answer:

40%

Step-by-step explanation:

you would take the number of magicians and divide that number by the total number of performers like this:

4 / 10 = 0.4

which equals 40%

so the probability of selecting a performer and them being a magician would be 40% exactly

i hope this helps :)

The probability of randomly selecting a magician from a group of 10 performers with 4 magicians is [tex]\frac{2}{5}[/tex].

The probability that a randomly selected performer from a circus with 10 performers and 4 magicians will be a magician is calculated by dividing the number of magicians by the total number of performers. Therefore, the probability P(magician) is:

P(magician) = number of magicians / total number of performers
P(magician) = [tex]\frac{4}{10}[/tex]
P(magician) = [tex]\frac{2}{5}[/tex]

Part C I Already Posted Part B And Part A Please Answer Part C And A Thanks

Answers

The area of the paper is Length x width = 8 x 11 = 88 square inches.

Each game piece was 1 inch in diameter.,so you could cut it out of a 1 inch square.

So each square inch of the paper could be a game piece.

You could make 88 game pieces.

You can make 88 pieces

Suppose you and some friends are going to the movies. The amount of money you spend for tickets varies directly with the number of people buying tickets. If you doesn’t $48 for six tickets, what is the constant of variation?

Answers

Answer:

8

Step-by-step explanation:

help if you do help you get 98 points. :)

Answers

Answer:

Answer is C

pls give brainliest!

Answer:

Abraham Lincoln, the 16th president of the United States, was born on February 12, 1809 and died at the age of 56 on the 4th day of March 1861. Lincoln was the president of the United States for four years from 1861 to 1865. Lincoln was born in Hardin County in the state of Kentucky in a small cabin that only had one room. His parents, Thomas Lincoln and Nancy Hanks were farmers who had a large track of land that measured 348 acres on which their cabin was situated. His parents were uneducated, however.

Lincoln’s political career began in 1832 when he created a political campaign for a political party known as the Whig Party. This party was based on efforts that sought to improve navigation on the neighboring river. Ten years later, Lincoln married the love of his life, Mary Todd, with whom he had four sons. Unfortunately, only one of his four sons did not survive into adulthood. Lincoln’s participation in active national politics took a turn for the better in 1842 when he campaigned and was elected to the US House of Representatives.

Step-by-step explanation:

(20 POINTS) Please show all of your work.


Solve.

x^2+5x-6=0

Answers

Answer:

x = -6 or x = 1

Step-by-step explanation:

[tex]x^2+5x-6=0\\\\x^2+6x-x-6=0\\\\x(x+6)-1(x+6)=0\\\\(x+6)(x-1)=0\iff x+6=0\ \vee\ x-1=0\\\\x+6=0\qquad\text{subtract 6 from both sides}\\x=-6\\\\x-1=0\qquad\text{add 1 to both sides}\\x=1[/tex]

Answer:

x = -6 or 1

Step-by-step explanation:

x² + 5 x - 6 = 0

Factors = -6 , 1

Sum = 5

Product = -6

x ( x + 6 ) - 1 ( x + 6 ) = 0

( x + 6 ) ( x - 1 )

x + 6 = 0

x = -6

x - 1 = 0

x = 1

which equation shows the point slope form of the line that passes through (3,2) and has a slope of 1/3

Answers

Answer:

y=1/3x+1

Step-by-step explanation:

y=mx+b

y=1/3x+b

2=1/3(3)+b

2=1+b

1=b

y=1/3x+1

Karyn will finish stacking cubes to create a solid rectangular prism.
The completed prism will be 3 centimeters high, 3 centimeters wide and 4 centimeters
long.
Enter the volume, in cubic centimeters, of the completed rectangular pris
124. ,

Answers

Answer:

36 cubic cm.

Step-by-step explanation:

To find volume, you multiply width by length by height, so 3x4x3, which is 36.

Solve the inequality

Please help and show me your working out thank you so much for your help:)

Answers

Answer:

-3≤x<4

Step-by-step explanation:

First you divide 3 on all sides of the equation.

So,

Answer:

x= (-3,-2,-1,0,1,2,3)

Step-by-step explanation:

You would divide 3 from both which you would get:

-3< x <4

x can represent any number above because the numbers I listed above is greater than -3 or less than 4.

3*-1=-3

3*0=0 ....... -3 <0 >4

3*1=3

Solve this system of equations using
the substitution method.
y = 3x + 9
y = 5x – 3
I need the answer for X and Y

Answers

Answer: Please Mark Brainliest :) !!

The answer is x= 6 and y= 27.

Step-by-step explanation:

3x + 9 = 5x + 3

-2x + 9 = -3

y = 5x -3

x = 6

y = 5x -3

y = 5(6) -3

y = 27

First, when solving for x, you would need to make one of the equation into standard form, which would be Ax + By = C. So, I'm going to use y = 5x -3.

y = 5x - 3  || subtract -5x on both sides from the equal sign

5x + y = -3  || there you have one equation in standard form

Now, all you have to do now is substitute the y-intercept form equation into the standard form equation. As you can see, you would substitute the y-intercept form into the y in the standard form equation.

5x + y = -3

5x + 3x + 9 = -3  || combine like terms

8x + 9 = -3  || subtract 9 on both sides from the equal sign

8x = 6  || divide by 8 on both sides from the equal sign

x = 0.75  || final answer for x

Then for solving y, take any equation in y-intercept form and substitute with the x in the equation, which I'm going to use y = 3x + 9 in this case.

y = 3x + 9  || substitute with x

y = 3 (0.75) + 9  || multiply 3 and 0.75

y = 3.75 + 9  || add 3.75 and 9

y = 12.75  || final answer for y

Thus, x = 0.75 and y = 12.75.

X^2-15x+56=(x-7)(x-____)
Fill in the blank please help me

Answers

Answer:

8

Step-by-step explanation:

The required value in the fill-in-the-blank is 8, which is completely factored into the product of two binomials: (x-7) and (x-8).

To fill in the blank in the expression x²-15x+56=(x-7)(x-____), we need to find the missing factor that, when multiplied by (x-7), gives us the original quadratic expression.

Factor the quadratic expression x²-15x+56 by finding two numbers that multiply to 56 and add up to -15, which are -7 and -8.

Therefore, we can rewrite the quadratic expression as:

x² - 15x + 56 = (x - 7)(x - 8)

This means that the quadratic expression can be completely factored into the product of two binomials: (x-7) and (x-8).

Thus, the required value in the fill-in-the-blank is 8.

Learn more about quadratic function here:

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complete the square in vertex form y=x^2+18x-2​

Answers

Answer:

y = (x + 9)² - 83

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Given

y = x² + 18x - 2

Obtain vertex form by using the method of completing the square

add/subtract (half the coefficient of the x- term )²

y = x² + 2(9)x + 81 - 81 - 2

  = (x + 9)² - 83

The ANSWER IS Y=(x+9)^2-83

A spinner is spun twice. it has a 3, 5, 7, & 9 on it. how many outcomes could produce a product greater than 21?

A / 11
B / 10
C / 12
D / 13

Answers

Answer:

A

Step-by-step explanation:

What numbers on both spins would create a PRODUCT GREATER THAN 21?

3 and 9

5 and 5

5 and 7

5 and 9

7 and 7

7 and 5

7 and 9

9 and 9

9 and 3

9 and 5

9 and 7

So, as we can see, we have 11 possibilities of getting a product GREATER than 21 (not 21...).

Correct answer A.

Solve the given inequality. Describe the solution set using the set-builder or interval notation. Then, graph the solution set on a number line.

4m +16.5 < 33.5

Answers

Answer:

solution  (-∞,4.25)

Step-by-step explanation:

Given inequality is [tex]4m +16.5 < 33.5[/tex].

Now we need to solve the given inequality. Describe the solution set using the set-builder or interval notation. Then, graph the solution set on a number line.

[tex]4m +16.5 < 33.5[/tex]

[tex]4m < 33.5 - 16.5[/tex]

[tex]4m < 17[/tex]

[tex]m < \frac{17}{4}[/tex]

[tex]m < 4.25[/tex]

Hence solution set using interval notation is given by (-∞,4.25).

Graph will be an arrow pointing to the left of 4.25

Answer:

m < 4.25; (-∞, 4.25).

Step-by-step explanation:

Part 1. Solve the inequality

4m + 16.5 < 33.5

         4m  < 17         Subtracted 16.5 from each side

            m < 4.25     Divided each side by 4

Part 2. Interval notation

The solution set consists of all numbers less than 4.25. We use parentheses to denote numbers that are not included in the interval.

4.25 is not included, because m < 4.25.

-∞ is not included, because we can never reach it.

In interval notation, the solution set is (-∞, 4.25).

Step 3. Number line

The solution set consists of all numbers less than 4.25. We use an open circle to show that  4.25 is not included in the set.

Please help! I’m super confused because I got a negative number and I think I’m wrong?

Answers

Answer:

5 1/3

Step-by-step explanation:

16 - (2z-4)/3

Let z = 18

16 - (2*18-4)/3

Multiply inside the parentheses first

16 - (36-4)/3

Subtract inside the parentheses

16 - (32/3)

Divide inside the parentheses and change to a mixed number

16 - 10 2/3

Borrow 1 from 16 in the form of 3/3

15 3/3 - 10 2/3

5 1/3

Answer:

Your answer would be 5 1/3.

Step-by-step explanation:

16- (2(18)-4)/3

16- (36-4)/3

16/1 - 32-3

48/3 - 32/3 = 16/3

16/3 converted to a mix number is 5 1/3

Hope I helped :)

What is the inverse of the function below?

Answers

ANSWER

[tex]{f}^{ - 1}(x) = ln(x)[/tex]

EXPLANATION

The given function is

[tex]f(x) = {e}^{x} [/tex]

Let

[tex]y={e}^{x} [/tex]

We interchange x and y.

[tex]x={e}^{y} [/tex]

Solve for y.

[tex]y = ln(x) [/tex]

This implies that,

[tex] {f}^{ - 1}(x) = ln(x) [/tex]

The correct answer is C

Answer:

[tex]f^{-1}(x)=ln(x)[/tex]

Step-by-step explanation:

Given function is [tex]f\left(x\right)=e^x[/tex].

Now we need to find it's inverse so follow these steps:

Step 1: replace f(x) with y.

[tex]y=e^x[/tex]

Step 2: Switch x and y.

[tex]x=e^y[/tex]

Step 3: Solve for y.

[tex]x=e^y[/tex]

[tex]ln(x)=ln(e^y)[/tex]

[tex]ln(x)=y[/tex]

[tex]y=ln(x)[/tex]

Step 4: Replace y with [tex]f^{-1}(x)[/tex].

[tex]f^{-1}(x)=ln(x)[/tex]

Hence final answer is [tex]f^{-1}(x)=ln(x)[/tex].

Melissa and Rachel like to make funny hats. Melissa has made 20 zebra printed hats and Rachel has made H striped hat. Together they have made a total of 42 hats

Answers

20+h=42 is the answer

Answer: Melissa made 22 striped hats

(Hope this helps) :D

Step-by-step explanation: You get this answer by subtracting 20 from 42 to get 22


A triangle has side lengths of 15, 20, and 25. What type of triangle is it?
a.) right
b.) equiangular
c.) acute
d.) obtuse

Answers

Acute triangle is the answer

Answer:

The answer is a. right.

Step-by-step explanation:

GIVEN:

hypo=25

opposite and adjacent=15 and 20.

FORMULA:

hypotenuse^2 =opposite side^2 + adjacent side^2

25^2=15^2+20^2

625=225+400

400+225=625

(Got this from yahoo answers, everybody said right.)

13. Write a function with a zero of 1/2. Explain how you know.

Answers

Answer:

The function is  [tex]f(x)=2x-1[/tex]

Step-by-step explanation:

If a function has a zero of [tex]\frac{1}{2}[/tex].

The we can write  [tex]x=\frac{1}{2}[/tex].

We need to work backwards to obtain the function:

We multiply through by 2 to get:

[tex]2x=1[/tex].

This implies that:

[tex]2x-1=0[/tex]

Hence a function with such zero is  [tex]f(x)=2x-1[/tex]

Answer:

The function is [tex]f(x)=4x-2[/tex]

Step-by-step explanation:

That a function has a zero at a certain number x means that [tex]f(x)=0[/tex]

Let's see an example,

If we have [tex]f(x)=x+2[/tex] (this is what we call function)

and we choose any value for the x,

x = 3

Now we replace it in our function

[tex]f(3)=3+2[/tex]

[tex]f(3)=5[/tex] (this is the image of 3)

Now if we say that x = -2, and replace it in our function

[tex]f(-2)=(-2)+2[/tex]

[tex]f(-2)=0[/tex] , this means that our function has a zero at x = -2

We can find the zeros of our function equaling it to zero and clearing the x, let's see

[tex]x+2=0[/tex]

[tex]x=-2[/tex]  this means that our function has a zero at x = -2

To find a function that has a zero at  [tex] \frac{1}{2}[/tex] , let's think that the result must be [tex]f(x)=0[/tex]

If we have 4 and multiply it by 1/2.

[tex]4)(\frac{1}{2})=2[/tex], now we subtract 2 from this result

[tex]-2 = 0[/tex] , the complete process would be

[tex]4)(\frac{1}{2})-2=0[/tex], we said that [tex] \frac{1}{2}[/tex], then

[tex]4x-2[/tex], now we write it as a function

[tex]f(x)=4(x)-2[/tex]  we know that by replacing the x by 1/2 the result will be zero, which means that [tex] \frac{1}{2}[/tex] is zero of this function

Let f(x)=x^2+5x-36. Enter the x-intercepts of the quadratic function in the boxes. __and __

please show the work and answer

Answers

Answer:

x = - 9, x = 4

Step-by-step explanation:

The x- intercepts are the values of x where the graph of the function crosses the x- axis.

To obtain them set f(x) = 0, that is

x² + 5x - 36 = 0

To factor the quadratic.

Consider the factors of the constant term (- 36) which sum to give the coefficient of the x- term (+ 5)

The factors are + 9 and - 4, since

9 × - 4 = - 36 and 9 - 4 = + 5, thus

(x + 9)(x - 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

x - 4 = 0 ⇒ x = 4

Answer:

x=(4,0) and x=(9,0)

hope this helps

Can i get help with this question?

Answers

Answer:

x=8

Step-by-step explanation:

The two angles are complementary angles, so they add together to make 90 degrees

x+50 + 4x = 90

Combine like terms

5x+50 = 90

Subtract 50 from each side

5x+50-50= 90-50

5x = 40

Divide by 5

5x/ 5 = 40/5

x = 8

Which term refers to the speed at which sound waves travel? A)volume B)amplitude C)frequency

Answers

Answer:

The answer would have to be VELOCITY which is distance / time.

That answer is NOT on your list.

Step-by-step explanation:

Answer:

frequency

Step-by-step explanation:

What polynomial has roots of -6,1, and 4

Answers

For this case, we have: If we have a root polynomial -6, 1, and 4. Then, the previous step was:

[tex](x + 6) (x-1) (x-4) = 0[/tex]

To build the polynomial we must multiply:

[tex](x + 6) (x-1) (x-4) =\\(x ^ 2-x + 6x-6) (x-4) =\\x ^ 3-4x ^ 2-x ^ 2 + 4x + 6x ^ 2-24x-6x + 24 =[/tex]

Adding similar terms:

[tex]x ^ 3 + x ^ 2-26x + 24[/tex]

Answer:

[tex]x ^ 3 + x ^ 2-26x + 24[/tex]

The rectangular prism is to be slices perpendicular to the shaded face and is to pass through point B , parallel to the front face . What will the dimensions of the rectangular cross section be

Answers

Answer:

10 centimeters by 18 centimeters

Step-by-step explanation:

we know that

The rectangular cross section is parallel to the front face

That means-----> The dimensions of the cross section are congruent with the dimensions of the front face

The dimensions of the front face are 10 centimeters by 18 centimeters

therefore

The dimensions of the cross section are 10 centimeters by 18 centimeters

Answer:

C.) 10 centimeters by 18 centimeters

Step-by-step explanation:

What is the sum of 5x^2+3x-7 and 12x+12?

Answers

It’s 5x^2 + 15x + 5 ! :)

I need help on this too 1000%

On the first five performance scores at work, your scores were: 84, 83, 92, 80, and 95. On the average, what was your score?

A)
62


B)
84.75


C)
86.8


D)
88.5

Answers

Its C, you have to add all the numbers up and divide by how many numbers there are

Other Questions
Jeff made $243.75 last week. If he worked 25 hours, how much is he paid for one hour of work? Jeff made $243.75 last week. If he worked 25 hours, how much is he paid for one hour of work? can someone help me?write an essay about Martin Luther King Jr. Blood is transported throughout the body through both arteries and veins, but a significant difference between the two is the presence of valves in veins. Some people develop chronic venous disease (CVD), which initially causes higher venous blood pressure and vein dilation, resulting in weakened vein valves. What do you predict would happen as the valve damage progresses?A) Blood would leak backwards through the damaged valves due to gravity, causing lower leg swelling.B) Veins would thicken and constrict, causing a restriction in blood flow, and leading to arterial leakage. C) Veins would carry a both oxygenated and deoxygenated blood away from the legs, causing oxygen deficiency.D) Blood flow would increase through the veins since the blood would not be impeded by valves. The Meselson-Stahl experiment provided the necessary evidence to discover the mechanism by which DNA replicates. They accomplished this discovery by first culturing DNA with the heavy 15N nitrogen isotope. They then allowed the "heavy" DNA to replicate with DNA grown in normal 14N nitrogen. The density of each generation of replicated DNA was recorded by marking its position in a test tube after centrifugation. The position of each generation was then compared to the positions of pure 15N DNA and pure 14N DNA. Suppose that the first generation after replication revealed two bands after being centrifuged: one at the pure 14N mark, and one at the pure 15N mark. Which method of replication would this observation support? (2 points) A. Dispersive replication B. Conservative replication C. Semiconservative replication D. Another generation would be needed in order to find a viable mechanism Answer True or False:1. The amount of water vapor in the air is called humidity As a result, since, and consequently are what type of transition words and phrases?A.cause and effectB.examplesC.order or sequenceD.similarities Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound waves? A. Vibrations have to be transmitted to the fibers of the auditory nerve. B. Impulses have to be sent to the brain through the auditory nerve. C. The outer ear has to collect the sound waves and lead them to the middle ear. D. The brain has to interpret the direction from which the sounds are being delivered. Which sequence correctly shows the path of carbon dioxide during respiration? A)body cells, alveoli, capillaries B)body cells, capillaries, alveoli C)alveoli, capillaries, body cells D)capillaries, alveoli, body cells Only the smallest particles of soil can be displaced by suspension because: Help me with ixl please If a=i-2j and b= 2i - xj are parallel, then x is.....a) 4 3 2 ) 2 d 4. This was one of the north Germanic tribes which invaded Britain in the 5th Century AD, warring with the native Celtic population. The Angles and the Jutes invaded at roughly the same time as did this tribe. There are 139 students and 10 adults on a field trip to the museum. The museum conducts tours in groups of 8. How many groups are needed for everyone to go on the tour. Why did North Carolina and South Carolina split into two colonies? A. They were founded at different times. B. They had very different economies. C. They had large groups of competing religious beliefs. D. They had different beliefs about slavery. Determine the enthalpy:4NH3(g) + 7O2(g) 4NO2(g) + 6H2O()H f species ( kJ mol) NH3(g) 46.11 NO2(g) +33.2 H2O() 285.831. 1899 kJ/mol rxn2. +2034.4 kJ/mol rxn3. 298.7 kJ/mol rxn4. 1766 kJ/mol rxn5. 1397.6 kJ/mol rxn Graph the image of the figure after a dilation with a scale factor of 2 centered at (7,2) .Use the Polygon tool to graph the quadrilateral by connecting all its vertices. Tomas Gomez's gross weekly pay is $750. What amount is deducted weekly for Social Security taxes, if the tax rate is 6.2%?$41.85$962.55$52.70$46.50 Write the algebraic expression that matches each graph (pictures are not drawn to scale!!): WILL GIVE 20 POINTS AND BRAINLIEST!!!!! Pls help me with this Fill in the blank with the preterite tense conjugation of the verb provided between parentheses.Ellos nunca (hablar) con el presidente.hablandohablenhablashablaron