If f(x) = 2x2 + 1, what is f(x) when x = 3?

Answers

Answer 1

Answer:

When x is equal to 3, f(x)= 13

Step-by-step explanation:

f(x) is basically y so it is asking us to find y when x=3

2x2+1

2*3*2+1

12+1= 13

When x is equal to 3, f(x)= 13

Hope this helps!


Related Questions

For which values of a the system has at least one solution: x≤7 x≥a urgent pls help now

Answers

Answer:

We have the system:

x ≤ 7

x ≥ a

Now we want to find the possible values of a such that the system has, at least, one solution.

First, we should look at the value of a where the system has only one solution:

We can write the 2 sets as:

a ≤ x

x ≥ 7

So, writing both together:

a ≤ x ≤ 7

if a is larger than 7, we do not have solutions.

then a = 7 gives:

7 ≤ x ≤ 7

Here the only solution is 7.

Now, if a is smaller than 7, for example 5, we have:

5 ≤ x ≤ 7

Now x can take different values, so we have a lot of solutions.

Then the restrictions for a, such that the system has at least one solution, is:

a ≤ 7.

Brandon asked some friends how much they pay in rent. The results are shown on the graph below. What is the mean of his friends' rents?

Answers

Answer: $690

Step-by-step explanation: I added all the numbers together and then I divided it by five and got $690

800+700+500+700+750=690

Translate the following into a verbal expression:
X2 - 5

Answers

X times Two minus five
The answer is X times 2-5

What’s the answer does anyone know?

Answers


56.57

Explanation:
In the process,
Diameter= 18,
Radius(r)=
18
2


Radius= 9
Now,
Circumference (Perimeter) = ?
According to the formula,
Perimeter= 2
×
22
7
×
r

Taking the equation,
Perimeter= 2
×
22
7
×
r

2
×
22
7
×
9

396
7

56.57142857

56.57

Let's hope this helps you:)
I hope this helps. Just plug it into the formula and you’re good

Can Someone Answer If These Two Are True Or False? … Please

Answers

first question is false I think and the second one is true I think

Step-by-step explanation:

I'm not that good at math but I'm just trying to help

which is the correct answer?? I have 5 mins left to finish this pls help

Answers

Answer:

25.3

Step-by-step explanation:

I just put it in my calculator.

A container ship is overtaking an oil tanker on the way out of Harwich Harbor, and the first mate notices that if he starts walking from the front of the container ship when the two ships start overlapping, he reaches the back as the two ship separate. He walks at 3 km/hour.
If the container ship is 100 m long, and travelling at 12 km/hour, how long is the oil tanker?

Answers

Answer:

I don't get it

Step-by-step explanation:

A large ice chest holds 62 liters of water. A smaller chest holds 4/5 as much water

How many liters of water does the smaller chest hoid? Move a number to each box to show the answer. HELP ASAP.

Answers

Answer:

Step-by-step explanation:

Since a large ice chest holds the water = 62 liters

And smaller chest holds the water = [tex]\frac{4}{5}[/tex] of the larger ice chest

                                                         = [tex]\frac{4}{5}\times 62[/tex]

                                                         = [tex]\frac{248}{5}[/tex] liters

Therefore, fraction that represents the amount of ice water in the smaller ice chest will have 0 in the first box, 248 in the numerator and 5 in the denominator.

[tex]0\frac{248}{5}[/tex]

What is the value of x?

20
35
60
70

Answers

Answer:

its 60. u gotta know this stuff man

the answer would be 20.

the angle is 60 degrees.

so you would do 20+40 to get 60 degrees and 3*20 to also get 60 degrees

If the top of Mt. Everest is 29,035 ft and Death Valley in California at it's lowest point is negative 282 ft. What is the difference between the top of Everest and the bottom of the Valley?​

Answers

Answer: 29317

Step-by-step explanation:

Write an algebraic expression for the two verbal expressions: 1. The product of 5 and twice a number x, decreased by the product of 3 and that same number. 2. Twice the sum of a number x, and another number y, increased by the product of the first number squared and 8.

Answers

Answer:

7x for the first expression

2x + 2y + 8x^2

Step-by-step explanation:

5(2x) - 3x

= 10x - 3x = 7x

2x + 2y + x^2(8)

= 2x + 2y + 8x^2

What is the range of the function f(x) = 4x + 3 when the domain is {−3 , 2 , 4}

Answers

Hey there! I'm happy to help!

The range of a function is all of the outputs. Let's plug in our inputs and find these outputs.

4(-3)+3

-12+3

-9

4(2)+3

8+3

11

4(4)+3

12+3

15

We order these from least to greatest, giving us a range of {-9,11,15}.

Have a wonderful day! :D

please answer fast!!!According to the Triangle Sum Theorem, which combinations of side lengths would make a possible triangle? Choose all that apply.
Group of answer choices

3, 4, 3.606

3, 6, 9.2

2, 5, 7

3, 4, 5

Answers

Answer:

Is there a picture of it?

Step-by-step explanation:

Answer:

3, 4, 5 would be the correct answer.

Help plssssssssssssss

Answers

Answer: (-3,-2)

Step-by-step explanation:

the answer is -2,3 in parenthesis

what is cross products ​

Answers

Cross products are a binary operation on two vectors in three dimensional space, and is denoted by the symbol.

Solve using standard algorithm 57.03+2.08

Answers

Answer:

59.08

Step-by-step explanation:

help me i willl mark if you get it correct

Answers

Answer:

8+(3/4w)

Step-by-step explanation:

8 for the miles she's already gone then plus 3/4 times number of weeks to represent how many more she'll go

UPS charges $7 for the first pound, and $1 for each additional pound. FedEx charges $5 for the first pound and $2 for each additional pound. How many pounds, p, will it take for UPS and FedEx to cost the same?

Answers

Answer:1

Step-by-step explanation:

0+1=1

Answer:

3 pounds

Step-by-step explanation:

1st pound:

ups=7

fedex=5

2nd  pound:

ups=8

fedex=7

3rd pound:

ups=9

fedex=9

1. In 2000, Florida's population was 16 million. Since 2000, the state's population has grown about 2% each
year. How big will the population be in 2016?

Answers

Answer:

13620000

Step-by-step explanation:

3.a.Sketch a line through the point

(-2,5) such that as an x-value

increases by 3. the y-value

decreases by 2.

y

o

Answers

Answer:

Step-by-step explanation:

Let the equation of the line passing through a point (x', y') and slope 'm' is,

y - y' = m(x - x')

Since x-value increases by 3,

Δx = 3

And y-value decreases by 2,

Δy = -2

Therefore, slope = [tex]\frac{\triangle y}{\triangle x}[/tex]

Slope = [tex]-\frac{2}{3}[/tex]

Equation of the line passing through (-2, 5) and slope = [tex]-\frac{2}{3}[/tex] will be,

y - 5 = [tex]-\frac{2}{3}(x+2)[/tex]

y = [tex]-\frac{2}{3}x-\frac{4}{3}+5[/tex]

y = [tex]-\frac{2}{3}x+\frac{11}{3}[/tex]

y = [tex]\frac{1}{3}(-2x+11)[/tex]

Table for input-output values will be,

x      -2         0         1          2         3

y       5        3.7       3        2.3      1.7    

We can plot these points to get the line on a graph.

Divide.
-6 7/8 divide by (-3 3/4)
Enter your answer as a mixed number, in simplified form, in the box.
Basic

Answers

-6 7/8= -55/8
-3 3/4= -15/4
-55/8 * -4/15
=11/6
In mixed fraction= 1 5/6

Geri spent Friday, Saturday, and Sunday selling a total of 24 magazine orders for her school fundraiser. The amounts she sold, respectively, on the three days were consecutive even integers. How many did she sell on each day?

Answers

Answer:

8

Step-by-step explanation:

So since there is 3 days and the total is 24 you divide and that will give you 8! Integers are a whole number btw (:

Order the numbers from least to greatest.
7,-3, 5, -0.8, 0.8, 10.-2

Answers

-3, -2, -0.8, 0.8, 5, 7, 10

Find the midpoint of the line segment with the given endpoints. (-3.1, -2.8) and (-4.92, -3.3)

Answers

Answer:

Step-by-step explanation:

(-3.1 - 4.92)/2 = -8.02/2 = -4.01

(-2.8 - 3.3)/2 = -6.1/2= -3.05

(-4.01. -3.05) the midpoint

whats the final answer?

Answers

Step-by-step explanation:

Tanø=opp/adj

Tan30=x/7. (× b.s 7)

x=7Tan30

x= 4.04

Which set of angle measures could be the interior angles of a triangle? A. 15°, 48°, 27° B. 56°, 45°, 46° C. 42°, 84°, 64° D. 93°, 29°, 58°

Answers

Answer:

D. 93°, 29°, 58°

Step-by-step explanation:

In a triangle we can only have 3 Interior angles.

The sum of the Interior angles in a triangle = 180°

Adding up the given Interior angles in the above question:

A. 15°, 48°, 27°

= 15° + 48° + 27°

= 90°

90° ≠ 180°

Option A is wrong

B. 56°, 45°, 46°

= 56 ° + 45° + 46°

= 147°

147° ≠ 180°

Option B is wrong

C. 42°, 84°, 64°

= 42° + 84° + 64°

= 190°

= 190° ≠ 180°

Option C is wrong.

D. 93°, 29°, 58°

93° + 29° + 58°

= 180°

180° = 180°

Option D is the correct Option.

Therefore, the set of angle measures that could be the interior angles of a triangle is Option D. 93°, 29°, 58°

13. John and Jane ate lunch at a local restaurant and wanted to divide the bill evenly. The
bill for the food was $8.70, plus 2 sodas for $0.75 each, including tax. How much
money back should just John receive if he pays for his half with a $20 bill?

Answers

John will receive $9.80 back

One glass of milk gives you 3/10 of the recommended amount of calcium per day.
3 glasses of milk will give you what fraction of the recommended amount of calcium per day?
O A. 3/5
OB. 1/10
O C. 19/30
• D. 9/10

Answers

the answer would be d 9/10

Answer:

The answer is D. 9/10

Step-by-step explanation:

The reason why is because the numerator 3 multiplied by 3 gives you 9 and the denominator doesn't change, so the answer is 9/10.

I NEED HELP ASAP 40 POINTS




Answer the following questions.
1) Choose the correct name for the set of numbers.
{..., – 3, -2, - 1,0, 1, 2, 3, ...}
whole numbers
integers
rational numbers
natural numbers
real numbers
irrational numbers

Answers

Answer:

integers

they include all whole numbers and their negative counterpart

Answer:

Step-by-step explanation:

the correct name for the set of numbers is integers numbers.

What is the quotient? Negative StartFraction 4 over 5 EndFraction divided by 2

Answers

Answer:

B

Step-by-step explanation:

It just is

Answer:

Its b

Step-by-step explanation:

I just took the test. Hope this helps <3

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