If f(x) equals 3x^2+1 and g(x)=1-x what is the value of (f-g)(2)?

Answers

Answer 1

Answer:

12

Step-by-step explanation:


Related Questions

Find x if the perimeter is 23.

Answers

[tex]\\ \sf\longmapsto 4x+3x-5+2x+1=23[/tex]

[tex]\\ \sf\longmapsto 7x+2x-5+1=23[/tex]

[tex]\\ \sf\longmapsto 9x-4=23[/tex]

[tex]\\ \sf\longmapsto 9x=23+4[/tex]

[tex]\\ \sf\longmapsto 9x=27[/tex]

[tex]\\ \sf\longmapsto x=\dfrac{27}{9}[/tex]

[tex]\\ \sf\longmapsto x=3[/tex]

Answer:

x = 3

Step-by-step explanation:

First, we know that the perimeter in total is 23. So, we need to make sure that all of the sides combined are 23. The equation becomes:

3x - 5 + 2x + 1 + 4x = 23

Let's simplify this.

3x + 2x + 4x - 5 + 1 = 23

Simplify again.

3x + 2x + 4x - 5 + 1 = 23

5x + 4x - 5 + 1 = 23

9x - 5 + 1 = 23

9x - 4 = 23

Now we have the simplified equation of 9x - 4 = 23. Now we must solve for x.

9x - 4 (+ 4) = 23 (+ 4)

9x = 27

9      9

x = 3

Now we can see that x = 3, which should be our answer. To make sure, let's plug it into the equation.

[3(3) - 5] + [2(3) + 1] + [4(3)] = 23

[9 - 5] + [2(3) + 1] + [4(3)] = 23

[9 - 5] + [6 + 1] + [4(3)] = 23

[9 - 5] + [6 + 1] + 12 = 23

4 + [6 + 1] + 12 = 23

4 + 7 + 12 = 23

11 + 12 = 23

23 = 23

As you can see, we got the answer 23 = 23. That indeed means that x = 3. Hope this helps!

The area of a circle of radius 3 cm is approximately equal to

Answers

28.27 to be exact. 28.3 if rounding up, 28 if rounding down

I NEED A MATH EXPERT PLS I NEED AN IDEA O HOW TO DO THIS!!!!!!!!!!!!



Planet Distance from Sun (in Km) Distance in scientific notation
Mercury 57,909,000 5.7909 x 10^7
Venus 108,000,000 1.08 x 10^8
Earth 149,597,870 1.4959787 x 10^8
Mars 299,000,000 2.99 x 10^8
Jupiter 788,000,000 7.88 x 10^8
Saturn 1,433,449,370 1.433449370 x 10^9
Uranus 2,876,679,082 2.876679082 x 10^9
Neptune 4,500,000,000 4.5 x 10^9

A. If a spacecraft was parked on Venus and needed to make a flight to Jupiter, how far would it need to travel? Show your work and provide your answer in scientific notation.


B. Mercury, Venus, and Earth are the three planets closest to the Sun. Would their combined distance from the Sun be greater or less than the distance from the sun to Neptune? Show your work and justify your answer.


C. If Earth was 10 times farther away from the Sun than it is now, which planet would it be closest to? Compare Earth's new distance to that planet. How far apart would they be in standard notation? How far apart in scientific notation? Show your work.



D. The space shuttle travels at about 28,000 km per hour. Using that information, estimate how many hours it will take the shuttle to reach Saturn from Earth. Show your work. Convert your answer into scientific notation if necessary.

Answers

Answer:

Astronomers were trying to find the weight of six planets - Mars, Venus, Pluto, Jupiter, Mercury and Saturn. The number of planets lighter than Mars was equal to the number of planets heavier than Venus. Saturn was heavier than Mars and Mercury was heavier than Pluto. Venus was lighter than Mars. Saturn was not the heaviest planet.

Step-by-step explanation:

what is -9/14 + 2/7 as a fraction in simplest form

Answers

Answer:

-5/14 (change 2/7 to 4/14 and it’ll help)  

PLEASE HELP THIS IS DUE TODAY :((

The picture is attached below

The question is

Given the piecewise function shown below select all of the statements that are true

Answers

A is true: 1 > 0, and f (1) = 1² - 1 = 0.

B is false: -2 < 0, so f (-2) = -(-2) + 1 = 3.

C is false: 4 > 0, and f (4) = 4² - 1 = 15.

D is true: -1 < 0, so f (-1) = -(-1) + 1 = 2.

domain of y=-2x+12x-18

Answers

Answer:

Set of all real numbers.

Step-by-step explanation:

We can subtitute all real numbers because after subtituting values function never gives undefined or complex values.

Note:if you need to ask any question please let me know.

To find 15, Beau found 32 = 9 and 4 = 16. He said that since 15 is between 9 and 16,15 must be between 3 and 4. He thinks a good estimate for 15 is 3+4 = 3.5. Is Beau's estimate high, low, or correct? Explain.​

Answers

Answer:

Answer: His estimate was low

Step-by-step explanation:

It's true that √16 is 4 and that √9 is 3

for √15 :

[tex] \sqrt{15} = 3.9[/tex]

It's true that √15 lies between 3 and 4

[tex] \sqrt{15} : 3 < x < 4[/tex]

Estimated answer :

[tex] = 3.5[/tex]

Exact answer :

[tex] = 3.9[/tex]

Therefore, the error:

[tex] \delta x = 3.9 - 3.5 \\ \\ = 0.4[/tex]

Since error is less than 0.5, his estimation was moderate, [ low ]

the set of whole numbers and their opposites​

Answers

Answer:

Integers

Step-by-step explanation:

2 × (-3)2 − 5 × (-3) × (-2) − (-2)3

Answers

Answer:

24

Step-by-step explanation:

2 x (-3)2 - 5 x (-3) x (-2) - (-2)3

2 x -6 - 5 x -6 + 6

-12 + 30 + 6

24

twenty four is the answer

Write
3
_
6
in lowest terms.

Answers

Answer:

1/2

Step-by-step explanation:

3 is half of 6  so the smallest term would be 1/2.

1/2 is the correct answer, hope this helps

The feet of this ladder are 2 ft from the wall. The wall is 10 feet tall. What is the approximate length of my ladder? *
104 ft
9.8 ft
96 ft
10.2 ft

Answers

Answer:

10.2ft

Step-by-step explanation:

2^2 +10^2=√104

=10.198

~10.2

Find the distance between the points (

18,4) and (

18,

20).

Answers

Answer:

(-18,4) is 16 units below (-18,20). hope this helps

Step-by-step explanation:

- Zombie

-4a-(8a+1)= -169

Explain

Answers

[tex] - 4a - (8a + 1) = - 169 \\ \\ 4a + 8a + 1 = 169 \\ \\ 4a + 8a = 169 - 1 \\ \\ 12a = 169 - 1 \\ \\ 12a = 168 \\ \\ a = \frac{168}{12} \\ \\ a = 14 \\ \\ this \: was \: helping \: you[/tex]

Step-by-step explanation:

Okay so remember the BODMAS rule where u start with brackets right; Since we're proving that RHS =LHS ,we look at the side which is more complicated and solve it first.

RHS: -4a-(8a+1) =-169

-4a-8a-1=-169

-4a-8a= -169+1 ( N:B like terms)

-12a= -168

-12a/-12= -168/-12

a= 14

Then go back to the original equation and subtitute .

where u see a u put the value u calculated.

-4a-(8a+1)=-169

-4(14)-(8(14)+1)= -169

-169= -169 and u DONE!!

7
9
20
3
9
A number is removed from this list and the median and range do not change
Write down this number.

Answers

Hope it a right answer for you

Answer:

Removing the number 7 wont change the median nor the range

Can you answer this, please?

Answers

Answer:

it is irrational,because the product of an irrational number and a non zero rational number is irrational

Monique has 12$ in her account, and she withdraws 40$ from the ATM.

Answers

Well she will either get denied or over draft to make her total -28$

Answer: -$28

Step-by-step explanation: Since Monique has $12, then she subtracts $40 from that. 12 - 40 = -28.

Hope this helps!

Robert,Susan,and Todd are standing in a line. How many ways can they be arranged.

Answers

Answer:

They can be arranged 6 times

Step-by-step explanation:

Robert, Susan, Tod... Tod, Susan, Robert... Susan, Robert, Tod... Tod, Robert, Susan... Susan, Tod, Robert... Robert, Tod, Susan.

Solve:
a. 5y – 3 = – 18
b. -3x – 9 = 0
c. 4 + 3(z - 8) = -23
d. 1 – 2(y – 4) = 5

Answers

Answer:

a. y = -3

b. x = -3

c. z = - 1

d. y = -7

Step-by-step explanation:

a. 5y - 3 = - 18

5y = -18 +3

5y = -15

y = -15/5

y = - 3

b. -3x - 9 = 0

-3x = 9

x = 9/-3

x = -3

c. 4 + 3(z-8)= -23

4 + 3z-24 = -23

3z - 20 = -23

3z = -23 + 20

3z = -3

z = -3/3

z = - 1

d. 1 - 2(y-4) = 5

1 - 2y + 8 = 5

9 - 2y = 5

-2y = 14

y = 14/-2

y = -7

in the figure below the measure of <1=5x°, the measure of <2=y°, and the measure of <3=85°. Find the value of each variable.

(for the first one <1=5x° I found out x=17 so I just need the rest if you can) ​

Answers

Answer:

y=95

Step-by-step explanation:

17x5=85

180-85=95

y=95

Each of the pairs of opposite angles made by two intersecting lines is called a pair of vertical angles. The value of x and y is 17 and 95, respectively.

What are vertical angles?

Each of the pairs of opposite angles made by two intersecting lines is called a pair of vertical angles.

The measure of ∠1 and ∠3 will be equal since the two angles are vertical angles. Therefore, we can write.

∠1 = ∠3

5x° = 85°

x = 85° / 5

x = 17°

Also, the sum of measures ∠1 and ∠2 will be equal to 180°, this is because the two angles form a pair of linear angles. Therefore, we can write,

∠1 + ∠2 = 180°

5x + y = 180°

Substitute the value of x,

5(17°) + y = 180°

85° + y = 180°

y = 180° - 85°

y = 95°

Hence, the value of x and y is 17 and 95, respectively.

The complete question is mentioned below.

Learn more about Vertical Angles here:

https://brainly.com/question/24460838

#SPJ2

Hey, can someone help me with 8 math problems of numbers in their prime factored form? I have no idea how to do this and my teacher didn't really explain very well, so this would be a big help!

Answers

Prime factorization is shows you the only way a number can be factored.

Here are some examples:

6 = 2 x 3

(2 and 3 are prime numbers) If you need to, search up a prime chart of numbers. Also prime numbers is technically how small you can get a number.

Here are some more examples:

12 = 2 x 2 x 3

45 = 5 x 3 x 3

now that you see what it looks like, you may be wondering how did factor those out? Well first find a divisible number. lets use this example;

Factor out 42.

first think of your times table, what two numbers get you to 42, I know that 6 times 7 does so now write it out:

42 = 6 x 7

Is this equation done?

No it is not, 6 can still be factored.

What two numbers get you the product of 6?

they are 3 and 2.

Now the final factored out equation looks like this:

42 = 3 x 2 x 7

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

I hope this helps!

Which of the following is the graph of f(x) = |xl translated 2 units right, 2 units up, and dilated by a factor of 1/3?

Answers

Answer:

Its the C graph

Step-by-step explanation:

Help can someone help me on these 2 questions I would appreciate it ;) ♡​

Answers

Answer:

htshfghdgfhdghfghfgh

Step-by-step explanation:

Answer:

1) <UOT and <ZOV

2) <ZOV = 30°

3 divided by 45 I need help I stink at division

Answers

Answer:45 divided by 3 is 15

Step-by-step explanation:

Answer:

its 15

I'm bad at explaning

Sound waves travel at a speed of 330.0 m/s how long does it take for the sound of thunder to travel 1.5 km?

Answers

Answer:

4.5454 seconds

Step-by-step explanation:

1.5 km is equal to 1,500 m

1,500 m divided by 330.0 m/s = 4.5454 s

the coordinates of t are given. the midpoint of ST is (5 -8) find the coordinates of point s
T(5,-15)​

Answers

Answer:

use midpoint formula

(5,-1)

evaluate x^2 for x=.5, 1, -1​

Answers

Answer:

Step-by-step explanation:

5^2=.25

1^2=1

-1^2=-1

El conjunto de los numeros racionales se representan con la letra Q.?

Answers

Answer:

El conjunto de números racionales se denota con la letra mayúscula latina Q presentada en un tipo de letra de doble trazo. Es parte de una familia de símbolos, presentados en un tipo de letra de doble trazo, que representan los conjuntos de números utilizados como base para las matemáticas.

Step-by-step explanation:

Joan joined her school's band. She bought a viola for $72.21, and a song book
which was $7.25 with a $100 bill. How much change was Joan given?

Answers

Hello :D

To do this you need to add the cost of the violin and the song book.

$72.21 + $7.25 = $79.46

$100 - $79.46 = $20.54

The answer is $20.54. I hope this helps :)

$100-$72.21-$7.25=$20.54

Solve each equation 3m-3/5=2m-1/2

Answers

Answer:

m= 1/10

Step-by-step explanation:

1. Move the terms so that will be 3m - 2m=-1/2 + 3/5

2. Subtract the m values so that will be 3m - 2m= 1 or m

3. Calculate the sum.

4. So the answer will be m= 1/10. M because we subtracted 2 from 3 which make us 1 so we say it m and 1/10 by doing 1/2 + 3/5.

Answer:

Step-by-step explanation:

3m - 3/5 = 2m - 1/2

3m - 2m = 3/5 - 1/2

m = 0.1

Help pleaseeeeeeeeeee

Answers

Answer:

3(x+5)

hope it helps you

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