If f(x)=3x^2-4x+9, find the f(2)​

Answers

Answer 1

Answer:

13

Step-by-step explanation:

3(2)(2) -4(2)+9

12 -8 +9= 13

Answer 2
13


Well you will plug in 2 into x and it’ll give you 3(2)^2-4(2)+9 and when you work that out you get 3(4)-8+9 and then work that out and you’ll get 12-8+9 and then a final answer of 13

Related Questions

Enter the slope-intercept equation of the line shown below.

Answers

I would say it’s y=3x- 3

compare aristocrats, farmers, and merchants in the ancient chinese society

Answers

Answer:

Aristocrats:  

highly respected

usually well off, but not rich

commanded others and had knowledge

Farmers:

Mildly respected

usually poor

provided revenue to empire and fed society

Merchants:

Not respected

usually rich

Traded & transported goods between others

Help me with this math problem please:):)

Answers

I believe it is 15 I am using trigonometry but I’m not 100% sure

The diameter of a circle is 9 in. Find its circumference in terms of pie

Answers

Answer:

C = 9π

Step-by-step explanation:

Please, use "pi" or "π"

The circumference of a circle of diameter 9 in is C = 9π

What is the mean of this data: 23, 37, 11, 58, 13, 45

Answers

Step-by-step explanation:

Mean= Sumof all the numbers/ number of data

So,

23+37+11+58+13+45=187

Now...

187/6=31.166666667 Answer

hope it helps....

Question:-

What is the mean of this data: 23, 37, 11, 58, 13, 45.

Solution:-

To find the mean of this data, first of all we should add up all the given numbers and then divide by how many numbers there are.

So, [tex] \bf Mean \: = \frac{23 \: + \: 37 \: + \: 11 \: + \: 58 \: + \: 13 \: + \: 45}{6} [/tex]

[tex] \bf Mean \: = \frac{187}{6} [/tex]

[tex] \bf Mean \: = \: 31.17 [/tex]

The mean of this data is 31.17. [Answer]

Kerel wants to buy a Points card for his X-box live account. He can buy a 200-point
card for $10.00 or a 300-point card for $15.00. Which card is the better value?

Answers

Answer:

equal. i think

Step-by-step explanation:

well if 10$ is worth 200 and 15 is worth 300 for me its adding half of the orginal number (200) and get 100 so 200+100=300

Both the cards are having the same value

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the first card be = A

Let the second card be = B

Now ,

The value of first card = $ 10.00

The value of second card = $ 20.00

And ,

The total value for 200 point cards = value of first card

The total value for 300 point cards = value of second card

So , the equation will be

200 = 10 A   be equation (1)

300 = 15 B   be equation (2)

Divide equation (1) by 10 on both sides , we get

A = 20

Divide equation (2) by 15 on both sides , we get

B = 20

Therefore , A = B

Hence , Both the cards are having the same value

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ2

there is 300 fruit in a basket 50 of them are bananas what percentage is not bananas

Answers

Answer:

83.33%

Step-by-step explanation:

300 - 50 = 250

250/300 = 0.8333 or 83.33%

Please answer and show work thank you:)

Answers

Answer:

Just use the first one and you divide.

Step-by-step explanation:

use the first one then divide!

multiple choice pls help!
(Links = report )

Answers

Answer:

120 in² hope it helped lol

Jack and Jill each opened accounts that earn 5% interest compounded annually. Jack deposited $2500 and Jill deposited $3000. No additional money was deposited or withdrawn. At the end of 6 years, what will be the combined balance of these two accounts? (Round to the nearest cent)

Answers

Answer:

3,850

Step-by-step explanation:

have a good day!!

HELP OMGGGGGGGGG PLSSS

Answers

Step-by-step explanation:

find the area of the big rectangle [ 8 * 18]

find the area of the small triangle [½ * 8 * 8]

calculate the difference of the 2 areas.

that's Ur answer

Answer:

B. [tex] 112 \: {in}^{2} [/tex]

Step-by-step explanation:

Area of the shaded region = Area of rectangle with dimensions 18 in and 8 in - Area of triangle with base 8 in and height 8 in

[tex] = 18 \times 8 - \frac{1}{2} \times 8 \times 8 \\ \\ = 144 - 32 \\ \\ = 112 \: {in}^{2} [/tex]

i need help with this asap
decide whether each if the pairs if angles given and illustrated are
alternate exterior
alternate interrior
correspondkn
vwrtical
1,2,3,4,5,6​

Answers

Answer: i think its alternate interior

To wash a window that is 12 feet off the ground, Mason leans a 20-foot ladder against the side of the building. To reach the window, how far away from the building should Mason place the base of the ladder?

Answers

Answer:

by clumbing the ladder

Step-by-step explanation:

The base of the ladder should be placed so that it is one foot away from the building for every four feet of hight to where the ladder rests against the building. This is known as the 4 to 1 rule.

Find the circumference of the circle. Use 3.14 for π. Round to the nearest hundredth, if necessary.

Answers

Answer:

There is no circle

Step-by-step explanation:

If you post the circle, I will help

Make sure to attach a file of the photo (Please no links)

HELP ME PLEASE I'll give brainless.

Answers

Answer:

<QRP=42 degrees

Step-by-step explanation:

Since the angles are sequential, they are the same. This is because the transversal cuts across parallel lines, creating said sequential angles.

Answer:

42 degrees since QS&TV are parallel

Is this adjacent vertical or linear can someone plz tell me the answer

Answers

Answer:

vertical

Step-by-step explanation:

its going straight up

which of these is the BEST theme for this poem?

Answers

Answer:

the answer is if we don't act the beauty of nature may disappear

Step-by-step explanation:

This is so because nature is fragile and needs to be taken care of properly thus this poem portrays various ways we are endangering nature and it's beautiful aesthetic features

how can you determine if two triangle angles are similar using their angle measurements???? In ur own words !!

Please help

Answers

Answer:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal. When the three angle pairs are all equal, the three pairs of sides must also be in proportion.

Step-by-step explanation:

hope this helps:0

EHIE HELP PLS
thank you so much you helped a lot , this is last problem

Answers

Step-by-step explanation:

I think it's 8 down again.

And 7 down.

8•7 = 56

• = Multiplication

Joann decides to paint one wall in her room with blackboard paint. The wall has the dimensions shown. A can of paint covers 25 square feet. How many cans of blackboard paint does Joann need for the wall.

Answers

*see attachment for the diagram of the wall

Answer:

6 cans

Step-by-step explanation:

First, let's calculate the area of the wall to be painted = area of a rectangle

Area of the rectangle = length*width

From the diagram,

Length = 13 ft

Width = 10 ft

Area = 13*10 = 130 ft²

Given that 1 can of paint covers 25 ft²,

Number of can of paints that will cover 130 ft² = 130/25 = 5.2

This means we will need more than 5 cans. So Joan will need to get roughly 6 cams of blackboard paint.

See image for question and answer choices

Answers

Answer:

B.

Step-by-step explanation:

So, lets remember a few things first.

#1: The formula for finding the answer is A^2+B^2=C^2

#2: A is the opposite side, B is the adjacent side, and C is the hypotenouse side.

Now lets plug in what we already know, and see if we canf igure out the annswer:

A^2+12^2=13^2

Now I am going to stop us here. This is your equation that will find the answer. In your question, they use x^2, A^2 is a variable you can use instead. But looking at this, answer B and my equation I wrote above are exactly the same.

If you want, here is how I further solved it, this might give you a better grasp on what to do for future problems:

Ok, not  too bad, the A is the unkown value, which is the opposite side.

Now, how do we figure this out? Well, we just need to sovle for A.

To do this, lets clean up our equation by first sqauring all the values(except for the unkown):

A^2+144=169

Ok, that looks better, now lets just subtract the adjeacent side(b), which is 144, from the hypotenouse side(c), which is 169.

This will now look like:

A^2=25(169-144=25)

Ok, just one more step to go. Just square root both sides of the equation, this way, we will get ride of the ^2 on A(opposite side), and get A alone.

([tex]\sqrt{A^2}=A[/tex])=([tex]\sqrt{25}=5[/tex])

A=5

This is your answer.


Find the cost of 2.5 yards of fabric if the fabric costs $8.00 per yard.
$3.20
$20.00
$32.00
$2.00

Answers

Answer:

20

Step-by-step explanation:

Answer - $20.00

Explanation - 1 yard = $8

8 time 2.5( the amount of yards) equals $20

You can also say 8 times 2 is 16 and half of 8 is 4 so as that to 16 and you get $20

Don’t know what the answer is, help

Answers

Answer:

A

Step-by-step explanation:

143.6° and x are adjacent angles and sum to 180° , then

x + 143.6° = 180° ( subtract 143.6° from both sides )

x = 36.4° → A

Please help me! Im begging!​

Answers

Answer: 25

Step-by-step explanation: Divide the value of people by  12. ( mystery )

Answer:90

Step-by-step explanation:every 40 people there is 12 pwople who like mystery so you then up intill you cant no more so you will have 280 so you can add 12 any more but think again 20 people qquals to 6 mysery so if you add all of it together you will get 90

Plz someone answer this for me asap !
Find the perimeter of each shape

Equation :
X:
Perimeter:

Answers

Answer:

The equation is;

4(2.5x-3) = 3(2x-2)

The value of x is 1.5

Step-by-step explanation:

Mathematically, the perimeter of a square is simply the product of the length of the side and 4

Secondly, the perimeter of an equilateral lateral triangle is the product of the length of its side and 3

Thus, mathematically, we have it that;

4(2.5x-3) = 3(2x-2)

10x - 12 = 6x -6

10x -6x = -6 + 12

4x = 6

x = 6/4

x = 1.5

A garden center has 150 fruit trees to sell.
1/10 of the trees are lemon trees.
2/5 of the trees are orange trees.
1/3 of the trees are peach trees.
The rest are pear trees.
How many trees are pear trees?

Answers

Answer:25 pear trees

Step-by-step explanation:

15/150

60/150

50/150

15+60+50=125

150-125=25

Use the number line to complete the statements.

A number line going from negative 10 to positive 10 in increments of 2.

The opposite of 4 is
.
The opposite of –8 is
.

Answers

Answer:

-4 and 8

Step-by-step explanation:

Answer:

The opposite of 4 is

✔ –4

The opposite of –8 is

✔ 8

Did it on Edge

Solve for x in the following equations: 9x + 10y = 17 when y = 8

A) 8
B) -7
C) 5
D) 10

Answers

Answer:

-7

Step-by-step explanation:

Answer:

9x+10*8=17

9x=17-80

9x= -63

X= -63/9

so X=. -7

hope it helps

help plz :<<<<<<<<<<<<

Answers

Answer:

can you make the question more clear please

What is the Coefficient in the following expression:

10+4a−3

Answers

Answer:

4

Step-by-step explanation:

Coefficient is the number next to the variable, making it 4.

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