if f(x)=2x^2+12 , what is f(3)

Answers

Answer 1

Answer:

f(3) = 30

Step-by-step explanation:

f(3) = 2(3)^2 + 12 = 30


Related Questions

The amounts of plastic waste generated in a region during two years were 32,400,000 tons and 20,300,000 tons. What was the total plastic waste generated over these two years in the region, expressed in scientific notation?

52.7 ⋅ 1014 tons
52.7 ⋅ 107 tons
5.27 ⋅ 107 tons
5.27 ⋅ 1014 tons

Answers

Answer:52.7• 1014

Step-by-step explanation:

Donald bought 3 shirts for $45. How many shirts can Donald buy if he has $30? Show your work using mathematics.

Answers

Answer:

donald can buy 2

Step-by-step explanation:

price of a shirt = $45÷3

=15

=30÷2=15

Answer:2 shirts

Step-by-step explanation: if you divide 45$ by three you find out each shirt cost 15$ if you add fifteen twice you get 30$ theirfor you used all your money and can not buy another shirt.

please i need ASAPPPPP ILL GIVE BRAINLIEST!!!!

Hans baked 51 cookles. His family ate m of them. Using m, write an expression for the number of cookles that remained. + ローロ ロメロ​

Answers

Answer:

[tex]51-m=n[/tex]

Step-by-step explanation:

M - Number of cookies his family ate

N - The remaining number of cookies left

please answer, it’s a test

Answers

Answer:

A

Step-by-step explanation:

The inverse of 2x would be 1/2 x and the inverse of +6 would be -6.

Please Help Me I Really Really Need It : (
I Will Mark you Brainliest If You Answer My Question Correctly.​

Answers

Answer:

C. Find the sum/difference.

1. 6 1/28

2. 7 2/9

3. 12 5/9

4. 9 14/15

5. 8 17/20

D. Add/Subtract

1. 9 2/15

2. 8 7/20

3. 8 9/10

4. 9 1/2

5. 7 5/9

E. Activity 3

1. 15 5/12 C.

2. 5 1/6 A.

3. 1 1/2 B.

4. 11 1/2 D.

5. N = 9 1/14 C.

F. Part 4

1. 16 7/40 C.

2. 16 7/15 A.

7x-y=7 find y intercepts
x- 0, 1, 2, 3, 4
y-

Answers

x
intercepts occur on the
x
axis, where
y
=
0
. So to find them, you plug in
y
=
0
in to the equation and solve for
x
.
0
=
7
x

0
=
0
so the y intercept is at the origin,
(
0
,
0
)
y
intercepts occur when
x
=
0


y
=
7
(
0
)

y
=
0

the x and y intercepts of
y
=
7
x
is
(
0
,
0
)
graph{7x [-2, 2, -5, 5]}

guys pls help me!!!!!!

Answers

Answer:

17 degrees

Step-by-step explanation:

x would be roughly 15

so sorry if incorrect

Miguel has a smart phone data plan that costs $45 per month that includes 10 GB of
data, but will charge an extra $20 per GB over the included amount. How much
would Miguel have to pay in a month where he used 3 GB over the limit? How much
would Miguel have to pay in a month where he used went over by x GB?

Answers

Answer:

well for th first part 105

Step-by-step explanation:

20x3=60=45-105

Please help me thanks

Answers

Answer:

5. 26⁰F, rise

6. 0, Added both the numbers instead of subtracting

7. 10⁰C

8. 25⁰F

9. 13⁰F

10. -4

what multiplies -46 and adds up to 21

Answers

Answer:

-2 and positive 23

Step-by-step explanation:

the mean of eight numners is 41 the mean of two of the numbers is 29 work out the mean of the other six numbers

Answers

Answer: 270/6 =45

Step-by-step explanation:

There are 3 different sets of numbers involved here.

A set of six, a set of two and the set of all eight.

Each set has its own mean.

Mathew goes to the movies over the weekend
with four of his friends. The total bill for the
tickets and snacks came out to be $92.50. If they
all decided to split the bill evenly, how much
money did each person pay?
I need help

Answers

Answer:

23.125$

Step-by-step explanation:

you have to divide the total amount of money by the total amount of people 92.50$/4=23.125$

Answer: $18.50

Explanation: You have to divide the $92.50 by the 5 people.

how do you solve 4x+1=9+4y

Answers

Answer:

x-y = 2

Step-by-step explanation:

I think it the right answer

What is the equation of the line parallel to y = -5x + 6 and passes through the point (6,-8)?​

Answers

Answer:

y = -5x + 22 is the equation of our parallel line

Step-by-step explanation:

remember a parallel line will have the same slope.

So let's begin by using the equation above and substituting the points.

[tex]y = - 5x + b \\ - 8 = - 5(6) + b \\ - 8 = - 30 + b \\ 30 - 8 = b \\ b = 22[/tex]

therefore our parallel line would be

[tex]y = - 5x + 22[/tex]

Determine the constant of proportionality (k) represented in the graph below

Answers

Answer:

k = 2

Step-by-step explanation:

y = kx

4 = 2k

k = 2 (slope)

help me asap I have 5min to send it in​ plss

Answers

Answer

A) Morning: 2:45am. / afternoon: 2:45pm

B) Morning: 6:05am / afternoon: 6:05pm

c) Morning: 9:15am. / afternoon: 9:15pm

d) Morning: 11:35am. / afternoon: 11:35pm

Step-by-step explanation:

How many times as great is 4 x 106 compared to 8 x 103
PLEASE HURRY AND ANSWER KIND OF IN A RUSH HERE

Answers

The number of times [tex] 4 \times 10^{6} [/tex] is greater than [tex] 8 \times 10^{3} [/tex] obtained using the division operation is 500 times

Given ::

Numerator = [tex] 4 \times 10^{6} [/tex]

Denominator = [tex] 8 \times 10^{3} [/tex]

Using the principle of indices :

[tex] (4 \times 10^{6}) \div (8 \times 10^{3}) = 0.5 \times 10^{(6-3)} = 0.5 \times 10^{3} = 500 [/tex]

Therefore, [tex] 4 \times 10^{6} [/tex] is 500 tones greater than [tex] 48 \times 10^{3} [/tex]

Learn more : https://brainly.com/question/18360970

PLEASE HELP QUICK! 50 POINTS IF YOU HELP!!
I WILL GIVE PERSON BRAINLY IF THEY GET IT RIGHT!!!
match the equations of the lines with their graphs.

Answers

Answer:

Assuming the graphs are abcd, 1 is b, 2 is c, 3 is a, and 4 is d.

Step-by-step explanation:

EEEE
Using the line of random numbers to run one simulation,
what proportion of students tried out for a sport?
O 0.40
A study reported that about 40% of high school students
have tried out for a sport at their school. To find out if this
applies to Jessica's school, she surveyed an SRS of 20
students. Nine of them said that they had tried out for a
sport. To see if this result is surprising, a simulation is to
be conducted to estimate the probability of obtaining a
sample result as high as this one.
Let 0-3 represent students who tried out for a sport and
4-9 represent students who did not try out for a sport.
O 0.45
O 0.50
O 0.60
52644
52348
82462
66233

Answers

Answer:

pretty sure its .4

Step-by-step explanation:

52644

52348

82462

66233

2 2 3 2 2 2 3 3 being the # of people trying out so

8/total #of people (20) =.4

Using the line of random numbers to run one simulation, the proportion of students that tried out for a sport is .4

Calculation and Parameters:

Given that 40% of students tried out for a sport in a school

The survey is an SRS of 20 students.

Hence, to find the proportion of students that tried out for a sport with the use of a line of random numbers would be:

52644523488246266233

Where # is the number of people trying out is 8

2 2 3 2 2 2 3 3

Therefore,

8/total #of people (20)

=.4

Read more about data simulation here:

https://brainly.com/question/9525414

A student wrote a photography manual which she plans to sell online for $ 13 per copy. Her total expenses were $ 55. Write a linear equation to show the relationship between x , the number of manuals the student sells, and y , the profit the student earns.

Answers

Answer:

y = 13x - 55

Step-by-step explanation:

So this is what we know

Selling price = $13 per copy

Expenses = $55

The formula for profit in this case is:

Profit = total selling price - expenses

In which y is the profit

The total selling price is 13x. x here is for the number of manuals she sells

The expenses are $55.

This then becomes y =13x - 55

HOPE THIS HELPED

[tex]200+300+1000[/tex]

Answers

Answer:

200 + 300 + 1000 = 1,500

Step-by-step explanation:

pls brainliest plss :<

The function his a quadratic function whose graph is a translation 7 units left and 9 units up function f(x) = x². What is the equation of h in vertex form and in the form y = ax²+bx+c?​

Answers

Warm Up For each translation of the point (–2, 5), give the coordinates of the translated point. 1. 6 units down (–2, –1) 2. 3 units right (1, 5) For each.

Find the slope of each line.
1)
2)
у

Answers

To find the slope of a line, remember:

[tex]slope=\frac{rise}{run}[/tex].

Also, the points that you choose to use to calculate your rise and your run must meet at an exact point, not in the middle of a block. In your graphs the points are the little blue dots, so that's already been done for you and that's what we'll use to calculate the slope!

Also, recall that the rise is how many blocks the line has changed vertically (so is one point lower/higher than another point)

The run is how many blocks the line has changed horizontally (so how many blocks over is the next point)

Therefore, for #1 we can see that the point on the right is over 3 blocks (run), and it goes down 1 block (rise).

So for #1, your answer is:  [tex]slope=\frac{rise}{run}=\frac{-1}{3}[/tex] or [tex]-\frac{1}{3}[/tex]

For #2 we see that one point is higher by 3 blocks (rise) and it also goes over one block (run)

So, your answer to #2 is:  [tex]slope=\frac{rise}{run}=\frac{3}{1}=3[/tex]

Hope this helps! :)

does anyone get this??​

Answers

Answer:

no HAHHAAHHA

Step-by-step explanation:

WHAT IS THAT

find the vaalue of x 3x+ y+ 2z= -10 x+5y+2y+2z= -12 -2x+3y= -1

Answers

x+7y+2z=−12

I'm not 100% sure though

For brainily please help :/

Answers

Answer: no

Step-by-step explanation: triangle inequality theory.

2.8+3.5 is not larger than 6.9 so this cannot be the sides of a triangle.

How can I find 75% of any number?

Answers

Answer:

75% can be converted into a decimal, any percentage can.

Once converted, 75% is actually .75

At this point you can move the decimal place two place up, and put it over 100, in a fractal form

75/100  

You can then simplify this to

3/4  

You can then use this fraction as a conversion factor with any number, for example if we took the number 8

8∗3/4  

2∗3/1=6

Divide it into 75 groups

REPOST*
PLEASE HELP ANSWER THIS QUESTION
(ILL GIVE BRAINLIEST TO THE BEST ANSWER TOO)
In Earth's southern hemisphere, the summer season is from December to March and winter is from June to September. The table shows the highest temperatures recorded at the South Pole for three different months.

Graph model:
South Pole Temperatures
Month Highest temperature (°F)
January 6
June –24
November –2

Each month's highest recorded temperature is plotted on the number line.

4. Which month had the coldest of the three temperatures? Explain.

Answers

#4

June is the most coldest.

How?

Mention the temperatures

January=+6°F

June=-24°F

November=-2°F

Lowest is the coldest .(June is the coldest month)

January = 6°F

June = -24°F

November = -2°F

By the above given observation we can say that June is the coldest as it has the lowest temperature in all.

A regular polygon has 20 sides

work out the sum of the interior angles of the polygon

work out the size of the interior angles

Answers

Step-by-step explanation:

The sum of the interior angles of a regular n-gon is given by the formula (n-2)180. Hence, in our case n=20 and we have the answer of 18(180)=3240 degrees.

Step-by-step explanation:

Course menu

Socratic Q&A logo

Search icon

What is the measure of an interior angle of a regular polygon with 20 sides?

Geometry Angles with Triangles and Polygons

1 Answer

mason m

Jan 2, 2016

162

˚

Explanation:

The sum of the interior angles in a regular polygon with

n

sides is found through the formula

180

˚

(

n

2

)

Here,

n

=

20

, so the sum of the interior angles is

180

˚

(

20

2

)

=

180

˚

(

18

)

=

3240

˚

To find just one angle, divide

3240

˚

by

20

since all

20

angles are congruent.

3240

˚

20

=

162

˚

click on the attachment <3 answer, please and thank you (:​

Answers

Answer:

10

Step-by-step explanation:

x-7=?

x=17

17-7=10

7+10=17

17=17 Correct :)

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