f(x) = 2x – 1 What is f(13)?

Answers

Answer 1

Answer:

f(13) = 25

Step-by-step explanation:

f(x) = 2x – 1

To find f(13) substitute the value of x that's 13 into f(x). That is for every x in f (x) replace it with 13

We have

f(13) = 2(13) - 1

= 26 - 1

We have the final answer as

f(13) = 25

Hope this helps you


Related Questions

115% of what number is 138?

Answers

Answer:

120

Step-by-step explanation:

120 * 1.15 = 138

Answer:

120

Step-by-step explanation:

115% of the number 120 is 138

You have $12 to buy 5 goldfish for your new fish tank. Write and solve an
inequality the represents the prices you can pay per fish.

Answers

Answer:

[tex]5x \leqslant 12[/tex]

x = price per fish

Polygon Q is a scaled copy of polygon P using a scale factor of 1/2. Polygon Q's area is what fraction of Polygon P's area.

Answers

Answer: Polygon Q's area is 1/4 of Polygon P's area

======================================================

Explanation:

Imagine we had a square with side length 8. The area of this square is 8*8 = 64.

Now let's reduce each side of the square by the scale factor 1/2. So each new side is 8*(1/2) = 4. The area of this smaller square is 4*4 = 16.

Comparing the new area (16) to the old one (64), we see that the new area is 16/64 = 1/4 of the old area.

In other words,

new smaller area = (1/4)*(old larger area)

So this is one example to see why (1/2)*(1/2) = 1/4 is the area scale factor based on the linear scale factor of 1/2. In short, (1/2)^2 = 1/4. Whatever the original scale factor is, square it and you'll get the area scale factor.

A 17-inch board is cut into three pieces. The
first piece is three inches more than the
second. The third piece is twice the first.
What is the length of the longest board.

Answers

Answer:

The third piece is the longest (10inches)

Step-by-step explanation:

The second piece is 2in

The first is 5in ( 2+3in)

Write the number as a product of prime factors. 520?


Answers

Answer: 2^3 • 5 • 13

Step-by-step explanation: 520 is not a prime number

A total of d dollars was donated to 4 charities. Each charity received $375. Which equation can be solved to find the total amount of money donated?

Answers

Answer:

If each charity has received $375 and there is 4 charities, the equation should look like this...

$375 x 4 = d

If you are looking how much was donated all together, the answer is:

$1500 dollars in total was donated.

Frank wrote these rations to describe the number of votes each candidate received compared to the total. which one is wrong and why​

Answers

Answer:

The number in the ratio 344 to 111 are written in the wrong orders

Step-by-step explanation:

Thank me later

please help me asap​

Answers

1. B (15/8)
2. D (19/12)
3. A (5/2)

This one is pretty simple. The explanation is that to convert a mixed fraction into an improper fraction, you have to multiply the whole number by the denominator. After you have done that, you have to add the total of the product of the whole number and denominator, you add that by the numerator. And that’s it, pretty simple.

1.
8 x 1 = 8 + 7 = 15

15/8

2.
12 x 1 = 12 + 7 = 19

19/12

3.
2 x 2 = 4 + 1 = 5

From the drawing above, Bryan discovered that his area was 2 less than
Jon's area. What is the reasonable value of x?

Answers

Answer:

1

Step-by-step explanation:

find the indicated unknown angle measure.​

Answers

Answer:

Pretty sure it's 47°

The perimeter of a rectangle is 40 m. The length is 4 m more than three times the width. Find the length and the width of the rectangle.

Answers

Answer:

Width = 4 m, Length = 16 m

Step-by-step explanation:

Perimeter = 40

Width = x

Length = 3x + 4

x + x + 3x + 3x + 4 + 4 = 8x + 8

40 - 8 = 32

32/8 = x

x = 4

Width = 4

Length = 16

Please mark as Brainliest, thank you!

4√5 mm
What are the perimeter and the area of the square?

Answers

Answer:

[tex]a = 80[/tex]

[tex]p = 32 \sqrt{5} [/tex]

Step-by-step explanation:

p= 4 × sides

[tex]p = 4(4 \sqrt{5)} [/tex]

[tex]p = 16 \sqrt{20} [/tex]

[tex]p = 16 \times \sqrt{5 \times 4} [/tex]

[tex]p = 16 \times 2 \sqrt{5} [/tex]

[tex]p = 32 \sqrt{5} [/tex]

for question two

[tex]a = {sides}^{2} [/tex]

[tex]a = {(4 \sqrt{5} )}^{2} [/tex]

[tex]a = 16 \times 5[/tex]

[tex]a = 80[/tex]

hope it helps ❤️‍❤️‍

for any question comment me

I need help on this please

Answers

Answer:

angle 1

Step-by-step explanation:

Answer: Angle 1

Explanation:

Vertical angles are angles that are opposite one another, and they are formed when you cross two lines. The pairs of vertical angles are...

Angle 1 and angle 4Angle 2 and angle 3Angle 5 and angle 8Angle 6 and angle 7

Divide. Write your answer in simplest form.

Answers

The answer is 0.2777777777 (repeating)
Or 0.28 (Rounded)
I hope this helps you!

A plane flew to its destination 300 miles away. With a tail wind, the flight took 5/6 of an hour. The return
trip, with a head wind, took 1 hour. Find the speed of the wind and the speed of the plane.


Thank youu

Answers

Answer:A plane flew to its destination 300 miles away. With a tail wind, the flight took 5/6 of an hour. The return trip, with a head wind, took 1 hour....

Step-by-step explanation:

Ava is 23cm taller than Olivia, and Olivia is half the height of Lucas. If Lucas is is 1.78m tall, how tall is Ava and Olivia?

Answers

you must convert 1.89 meters into centimeters, which is 189 then divide it into 2, which is 94.5, then add 23, which is 117.5 so your answer is

117.5 !! good luck :)

Answer:

Ava = 1.12 m tall

Olivia =  0.89 m tall

Step-by-step explanation:

given;

Ava is 23cm taller then Olivia,

Olivia is half the height of Lucas.

If Lucas is 1.78m tall

find:

how tall are Ava and Olivia

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

Ava = Olivia + 0.23

Olivia = Lucas / 2

Lucas = 1.78

plugin values into the equation above

Olivia = 1.78 / 2

Olivia =  0.89 m tall

Ava = 0.89 + 0.23

Ava = 1.12 m tall

I am in 9th grade,if you have 889,865x999,786 what doe it equal also yes i am not in virtual school and teacher will not let me use a calculatar

Answers

Answer:

889674568890

Step-by-step explanation:

I used a calculator :)

Suppose 7 quarters, 4 dimes, 4 nickels, and 3 pennies are in a box. One coin is selected at random. What is the expected value of the money drawn from the box?

Answers

Since the quarters have a highest percentage. You would likely draw 25 cents from the box

The table shows three popular flavors according to the results of a survey. What is the
decimal value of those who liked vanilla, chocolate, or strawberry? Round to the
nearest hundredth.

Answers

Answer:

0.45

Step-by-step explanation:

HELPPPP PLEASE !!! I do not get this someone help

Answers

Answer:

20

Step-by-step explanation

not sure but looks like you need help as fast as possible here my answer the way i thought about is you have 70 degree angle and y looks like a right angle which = 90 degree

x = 180 - 70+90

x = 180 - 160

x = 20

The value of the angle x for the given triangle will be 20°.

What is a triangle?

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

As per the given triangle,

m∠y = 90°

The exterior angle = sum of two interior angles except for the adjacent angle of the exterior angle.

110° = x + y

110° = x + 90°

m∠x = 20°

Hence "The value of the angle x for the given triangle will be 20°".

For more about triangles,

https://brainly.com/question/2773823

#SPJ2

WILL MARK BRAINLY IF CORRECT; 100 POINTS I ALREADY FIGURE OUT LETTER A & B. I JUST NEED TO FIGURE OUT LETTER C.

Carrie Overwood works fluctuating work schedules. Besides her fixed salary of $1,044 per week, her employment agreement provides for overtime pay at an extra half-rate for hours worked over 40. This week she worked 48 hours. Compute the following amounts. Round all divisions to two decimal places and use the rounded amounts in subsequent computations. Round your final answers to the nearest cent.

a. The overtime earnings $ 87.04

b. The total earnings $ 1,131.04

c. If this was a BELO plan with a pay rate of $23.45 per hour and a maximum of 48 hours, how much would Overwood be paid for 42 hours? $

Answers

Answer:

$1008.35

Step-by-step explanation:

938$+  70.35$ from overtime.

Answer:

1008.35

Step-by-step explanation:

I believe that's the answer

A clown uses canisters of helium to make balloons. The graph shows the number of canisters used and the number of balloons created. What does the point (0,0) represent? A It shows the number of balloons created using 1 canister of helium. B It shows that when 0 canisters of helium are used, 0 balloons are created. C It shows that when 0 canisters of helium are used, 5 balloons are created. D It shows the number of canisters needed to create 10 balloons.

Answers

Answer:

B It shows that when 0 canisters of helium are used, 0 balloons are created

Step-by-step explanation:

from the graph, we can see that point (0,0) means that when the number of canisters of helium used is 0, then the number of balloons created is also 0

the closest answer to this observation is:

B It shows that when 0 canisters of helium are used, 0 balloons are created

explain the process to calculate the distance between A= (9,7), B= (3,2)

Answers

Answer:

Step-by-step explanation:

Distance Formula in Pic

You just plug in the numbers for x1,y1 and x2,y2

A is your x1 and y1

B is your x2 and y2

after plugging it you do PEMDAS and solve it


It takes 3 men 5 hours to repair a road. How long will it take 5 men to do the job if they work at the same rate?
hours

Answers

Answer:

8 hours and 1 min

Step-by-step explanation:

3men=5hours

5men=x

cross multiply

5x5=3x

25=3x

divide both side by 3

x=8hrs and 1 min

It should be 8 hours and 3 minutes

Please help me! Find the sale price

Answers

Answer:

sale price is $104

Step-by-step explanation:

Given the equation in the problem S=P-0.20P:S = P - 0.20PS = (130.00) - (0.20 · 130.00)S = 130-26S = $104

Answer:

$104.00

Step-by-step explanation:

So we know that in the equation:

S = P - 0.20P

P is the original price and S is the sale price, which is also the original price reduced by 20%.

We are also given that the original price of a digital media player is $130.00.

We are asked to find the sales price of that digital media player. To do this, we can plug in $130.00 for P in the given equation, since it is the original price of the digital media player, and solve for S, the sales price:

S = 130 - (0.20)(130)

S = 130 - 26

S = 104

So now we found the sales price of the digital media player, which is $104.00.

I hope you find my answer helpful.

Write the​ point-slope form of the line satisfying the given conditions. Then use the​ point-slope form of the equation to write the​ slope-intercept form of the equation.
Passing through ​(​4,​8) and ​(7​,14​)
Type the​ point-slope form of the equation of the line

Answers

Answer:

Step-by-step explanation:

(14 - 8)/(7 - 4)= 6/3= 2

y - 8 = 2(x - 14)

y - 8 = 2x - 28

y = 2x - 20

7x + 15 - 9x = 5 plz help

Answers

Answer:

x =5

Step-by-step explanation:

[tex]7x + 15 - 9x = 5\\\\\mathrm{Group\:like\:terms}\\7x-9x+15=5\\\\\mathrm{Add\:similar\:elements:}\:7x-9x=-2x\\-2x+15=5\\\\\mathrm{Subtract\:}15\mathrm{\:from\:both\:sides}\\-2x+15-15=5-15\\\\Simplify\\-2x=-10\\\\\mathrm{Divide\:both\:sides\:by\:}-2\\\frac{-2x}{-2}=\frac{-10}{-2}\\\\Simplify\\x = 5[/tex]

someone help me on this please

Answers

Answer:

✓ The data for store 1 shows greater variability.

✓ The mean of the data for store 1 is greater than the mean of the data for store 2.

Calculate the average speed between 160s and 200s

Answers

Answer:

The answer for your question is 1.25 m/s.

Step-by-step explanation:

this is your answer.........

I have done a hard work please mark it as brainliest

Which number should go in the ?
5 + 3 = 3 + 0
() 8

Answers

I feel like it should be 5
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