if f(x)=3[tex]x^{2}[/tex]-4, find f(-3)

Answers

Answer 1

Answer:

[tex]\sf f(-3) = 23[/tex]

given:

[tex]\sf f(x) = 3x^2 -4[/tex]

to find the output, replace x with the given integer.

solve:

[tex]\sf f(-3) = 3(-3)^2 -4[/tex]

[tex]\sf f(-3) = 3(9) -4[/tex]

[tex]\sf f(-3) = 27 -4[/tex]

[tex]\sf f(-3) = 23[/tex]


Related Questions

i’m so confused help me

Answers

Answer:

C

Step-by-step explanation:

D is moving +4 squares up to go to D'' and same goes for the rest of the letters . if it makes sense kinda confusing but trust it's C

6) Maria bought seven boxes. A week later
half of all her boxes were destroyed in a fire.
There are now only 22 boxes left. With
how many did she start?


please helppp

Answers

58 boxes at first I got this by adding 22+7 which is 29 then multiplied two since it said half got destroyed and 29x2 is 58. So then I did 58/2 which us 29 minus the 7 she brought which is 22 and she has 22 left! I hope you understand lol

Answer:

37 boxes

Step-by-step explanation:

you should try and write each of the steps into an equation of x. Where x is the boxes she started with

so, she had x boxes, she bought 7 (that's addition) and then half of those boxes (that's division) got destroyed in the fire and she has 22 left (that's your total).

you can write the equation like this:

(x+7)/2 = 22

then, you solve

(x+7) = 44

x = 37

she originally had 37 boxes

Persephone is creating a flower garden in her back yard. If she needs 30 pounds of soil per square foot of the flower garden, how much soil will Persephone need to create her garden? (19 by 8)

Answers

Answer:

4,560 pounds of soil per square foot

Step-by-step explanation:

19 × 8 = 152

152 × 30 = 4,560

Order these from greatest to least:
0.009 m, 12 cm, 8 nm, 5 x 10^-1 m

Answers

8 nm, 0.009m, 12cm, 5 x 10^-1m

Write an equation of the line that passes through (1,4) and is parallel to the line y =-5x+2

Answers

Answer:

y=-5x+9

Step-by-step explanation:

Answer:

y=-5x+-9

Step-by-step explanation:

If you notice is says that the line HAS to go through (1,4) but if you need it to go through (-1,4) it would be y=-5x+-1

The price of a share of stock started the day at $19. During the day it went down $13 up $1, and down $14 and up $4. What integer represents the price of a share at the end of the day.

Answers

Answer:

-3

Step-by-step explanation:

19-13=6+1=7-14=-7+4=-3

The integer represents the price of a share at the end of the day will be negative 3.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The price of a share of stock started the day at $19. During the day it went down $13 up $1, down $14, and up $4.

Then the integer represents the price of a share at the end of the day will be

⇒ 19 - 13 + 1 - 14 + 4

⇒ -3

The integer represents the price of a share at the end of the day will be negative 3.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Whats the domain and range

Answers

Answer:

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

Step-by-step explanation:

7) Joey is four years older than Billy. The sum of
their ages is 24.
a) Write a system of equations to represent
this situation. Let j=Joey's age and
b=Billy's age.
b) Solve to determine the age of both Billy and
Joey

Answers

Answer:

Joey is 14, Billy is 10.

Step-by-step explanation:

The system of equations you can use is:

j=b+4

j+b=24

(b+4)+b=24

2b+4=24

2b=20

b=10

j=10+4

j=14

Answer: j+b=24

J=b+4

Step-by-step explanation: (b+4) + b=24

You’re going to substitue J=b+4 into j+b=24

you’re going to get joeys age 14, Billy’s age 10


If turkey costs $6.36 per pound, what will be the total cost of 2.5 pounds of turkey?

Answers

Answer:

$15.90

Step-by-step explanation:

$6.36(2.5)=15.90

multiply price per pound times 2.5.

can you help find the missing value​

Answers

Answer:

a

Step-by-step explanation:

cause I had this question

the x value is 4. if you plug the equation into desmos you can find that point on the graph

3 1/2 as an equivalent fraction with a denominator equal to 12

Answers

Answer:

42/12

Step-by-step explanation:

3 1/2 in improper fraction form is 7/2. We can see the denominator in the equivalent fraction is 12. In order for that to happen, the common factor that must have been multiplied is 6. So the numerator of the equivalent fraction should be 42 because:

                         7            42

                       ___ =    ____

                         2            12

42/12

The answer is [tex]\frac{42}{12}[/tex]

First, you must simplify both sides if the equation.

[tex]\frac{7}{2}=\frac{x}{12}[/tex]

Then, multiply both sides by 12

[tex]42=x[/tex]

[tex]x=42[/tex]

Finally, substitute in 42 for x

[tex]3\frac{1}{2}=\frac{42}{12}[/tex]

Which of these equations best describes the line of best fit for the data in the scatter plot on the number of metals the U.S. Olympic team won and the cost to air a commercial during the Olympics?​

Answers

Answer:

B

Step-by-step explanation:

It's not going negative you can tell by the line it has y-intercept and the last on didn't the other ones have aa negative. If you have a problem with these kinds of equations just do process of elimination and you'll be fine also here's the answer to another question

Which number is a rational number?

V 13/16
V9/2
V 34
V 49

Answers

Answer:

all of these are rational numbers

Step-by-step explanation:

Can someone help me with my warmup ? Will greatly appreciate it !

Answers

Answer:

E

Step-by-step explanation:

basically if you do a graph y will start at 5 always because the entrance fee never change. then 0.6 equal 60 cents and since it's per pound you will multiple with x (how many pounds)

Answer:

E.

Step-by-step explanation:

Because it is 0.60 PER pound and an extra $5 so the equation would be C=0.60x+5

The circumference of a circle is 18 feet. What is the area

Answers

Answer:

18

Step-by-step explanation:

it does not have an area its an circle so it just 18 feet

really want a crown

What is the value of x? PHOTO INCLUDED/WILL MARK BRAINLISET!!!!

Answers

Answer:

1. x = 6.5

2. x = 5

Step-by-step explanation:

please help will mark brainliest

Answers

Answer:

a, R=P+C

b,$870

Step-by-step explanation:

a if P=R‒C.(to find R you have to know the opposite of ‒C) ( -C≠C)

then add C in two sides

(P+C=R‒C+C)

(P+C=R)

SO the formula is R=P+C

b the given are P=$350,C=$520

R=$350+$520

R=$870

i believe it helps you

The explicit rule for a sequence and one of the specific terms is given. Find the position of the given
term
f(n) -(3n-3)+3;72

25 is the BLANK th term

Answers

Answer:

24th term

Step-by-step explanation:

The value of the nth term is 72. Then the position of the nth term will be 24.

What is an arithmetic sequence?

A series of integers called an arithmetic succession or arithmetic chain of events has a fixed difference between the terms.

Let a₁ be the first term and d be a common difference.

Then the nth term of the arithmetic sequence is given as,

aₙ = a₁ + (n - 1)d

The explicit rule for a sequence and one of the specific terms is given.

fₙ = (3n - 3) + 3

If the value of the nth term is 72. Then the position of the term is given as,

72 = (3n - 3) + 3

72 = 3n - 3 + 3

72 = 3n

n = 72 / 3

n = 24

The value of the nth term is 72. Then the position of the nth term will be 24.

More about the arithmetic sequence link is given below.

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Help please I don’t know the answer

Answers

Option A is correct answer

Answer:

option A i believe is correct

Step-by-step explanation:

 hope that helps you :)

A bike was reduced by 20% in a sale.
If its sale price was £520, what was its original price?

Answers

Answer:

416

Step-by-step explanation:

Answer:

£500

Step-by-step explanation:

14y - (y - 2) + 5(y + 9)

Answers

Answer:

=18y+47

Step-by-step explanation:

Let's simplify step-by-step.

14y−(y−2)+5(y+9)

Distribute:

=14y+−y+2+(5)(y)+(5)(9)

=14y+−y+2+5y+45

Combine Like Terms:

=14y+−y+2+5y+45

=(14y+−y+5y)+(2+45)

=18y+47

Answer:

y = -2 11/18 or y = -2.6111 repeating

Step-by-step explanation:

14y -(y - 2) + 5(y + 9)

    Distribute the negative (-) to (y - 2)

    Distribute the five (5) to (y + 9)

14y -y + 2 + 5y + 45

    Combine like terms

18y + 47 = 0

       -47 = -47

18y = -47

18y/18 = -47/18

y = -2 11/18

Hope this helps! :)

find the measures of angles 3 and 4​

Answers

Angle 3 is 89 Degrees.

Angle 4 is 91 degrees.

Use Vertical Angles and the Triangle Theorems to help you/

Estimate. 110×298
30,000
3,000
40,000
2,000

Answers

Answer:

it's acually 107,800

Answer:

30,000 yes this is correct

Step-by-step explanation:

Which of the following is not a benefit of increased physical activity?
Select one:
O a. Sleep Better
O b. Less Energy
O c. Improved Mood
O d. Improved Health

Answers

Answer:Less energy

Step-by-step explanation:Because if you don't have alot of energy in you you'll be tired and cant move that much if that makes since.

Answer is  b. Less Energy is not a benefit of increased physical activity.

What is physical activity?

Physical activity refers to all movement including during leisure time, for transport to get to and from places, or as part of a person's work.

here, we know that,

not a benefit of increased physical activity is Less Energy.

Because if you don't have a lot of energy in you you'll be tired and cant move that much if that makes since.

Hence, Answer is  b. Less Energy is not a benefit of increased physical activity.

To learn more on physical activity click:

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Helppppp pleaseeeeee!!!!!!!???????

Answers

I believe the answer is $2.12 (rounded to the nearest cent) explanation: divide the price by the pound for each candy then subtract.


Erin already has 7 plants in her backyard, and she can also grow 2 plants with every seed
packet she uses. Write an equation that shows the relationship between the number of seed
packets s and the total number of plants p

Answers

The answer is p=2s+7. Two plants can be grown from each seed packet, and Erin already has seven plants so you add that to the equation as well.

pose that the function f(x) - 5.32 +0.80x represents the cost of mailing an
ect that weighs x pounds. How much would it cost to mail an object that
ghs 36 pounds?
te: express the answer in dollars.cents)

Answers

Answer:

$34.12

Step-by-step explanation:

The expression for the total cost of a mail is given as

f(x) - 5.32 +0.80x, where x is the amount of weight in pounds

Given that x= 36 pounds we can find the cost of mailing 36 pounds of ect

hence let us put x=36 in the expression to find the total cost

f(x) =5.32 +0.80(36)

f(x) =5.32 +28.8

f(x) =34.12

Therefore the cost of mailing 36 pounds of ect is $34.12

i need to solve the literal equation for 6 - 3y = -6

Answers

Answer:

4

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Damon was on his way to a marble tournament when he met Artemio. Damon's bag of marbles was heavy, so he gave Artemio ½ of his marbles plus 2. Then he met Banou and gave her ¼ of his remaining marbles plus 5. Just before arriving at the tournament, he met Alex and gave him ½ of the marbles he had left. When he got to the tournament, he had 2 marbles left. How many marbles did he start with?

Answers

Answer: 28.

Step-by-step explanation:

Let's define D = # of marbles in Damon's bag at the beginning.

First, he gave D/2 + 2 marbles to Artemio, so now he has:

(D - D/2 - 2) = (D/2 - 2) marbles left.

Now, he gives 1/4 plus of what he has left plus 5 to Banou, so he gives:

(D/2 - 2)/4 + 5 marbles to Banou.

Then Damon has now:

(D/2 - 2) - (D/2 - 2)/4 - 5 = 3*(D/2 - 2)/4 - 5.

Now Damon gives half of this to Alex, then the amount that he has left is:

(3*(D/2 - 2)/4 - 5)/2

And we know that this is equal to 2, then we can solve this equation as:

(3*(D/2 - 2)/4 - 5)/2 = 2

Let's solve this for D.

(3*(D/2 - 2)/4 - 5) = 2*2 = 4.

3*(D/2 - 2)/4 = 4 + 5 = 9

3*(D/2 - 2) = 9*4 = 36

(D/2 - 2) = 36/3 = 12

D/2 = 12 + 2 = 14

D = 2*14 = 28

Damon initially had 28 marbles.

! PLEASE HELP QUICKLY !
A linear function is given by formula y= 1/2x - 2

What is the x-intercept of the graph?

Answers

Answer:

see below

Step-by-step explanation:

y= 1/2x - 2

To find the x intercept, set y =0 and solve for x

0= 1/2x - 2

Add 2 to each side

2 = 1/2x -2+2

2 = 1/2x

Multiply by 2

2*2 = 1/2x *2

4 =x

The x intercept is 4

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