what's a Number line ?

Answers

Answer 1

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Answer 2

Answer:

It is a line with points to represent numbers. It is used to model equations and can be used to determine greater or less than. It's a useful tool to use in math.

Step-by-step explanation:


Related Questions

When writing an equation in slope-intercept form, you need the values of the

Answers

Answer:

slope, m

y-intercept

Step-by-step explanation:

When writing an equation in slope-intercept form, there will be need for slope and y- intercept.

What is the slope intercept form of an equation ?

When any equation is represented in the y = mx +c form, it is called the slope intercept form of the equation.

Here m is slope and c is constant.

To writing the slope intercept form of the equation,

There will be requirement of slope,

and y intercept, it will be in form of (0, a), here a will be value of y coordinate.

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find the slope of the line through each pair of points ( 3, 11) , (3, -10)

Answers

Answer:

undefined

Step-by-step explanation:

Since it is a vertical line and there is no run only rise.

1
A line has a slope of -2 and a y-intercept of -2.
7
6
6
4
3
1
3-7-6-5-4-3-2-1
1 2 3
6 67
X
-3
4
-
--7-
What is the x-intercept of the line?

Answers

Answer:

-1

Step-by-step explanation:

Margo is selling boxes of nuts to raise money for her club. She finds that 3 out of every 7 boxes of nuts are cashews. Write a ratio to represent the number of boxes of cashews to the total number of boxes sold.

Answers

Answer:

3 : 7

Step-by-step explanation:

make sure the three of on the left

The number of boxes of cashews to the total number of boxes sold is expressed as 3:7 in ratio.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other. The general form of expressing a ratio between two quantities say 'a' and 'b' is a: b

Margo finds that 3 out of every 7 boxes of nuts are cashews.

In order to calculate the ratio of two quantities, we can use the following steps

First, we must determine the quantities for both scenarios for which we are calculating the ratio. In this situation, there are three cashews and seven boxes.

Write it as a fraction, a/b. As a result, we write it as 3/7.

Therefore, the number of boxes of cashews to the total number of boxes sold is expressed as 3:7 in ratio.

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2. Given f(x) = 2x + 3(x – 3), find x, if f(x) = 11.

please hurry

Answers

Answer:

Correct answer:

3

Step-by-step explanation:Using the defined function, f(a) will produce the same result when substituted for x:

f(a) =  a2 – 5

Setting this equal to 4, you can solve for a:

a2 – 5 = 4

a2 = 9

a = –3 or 3

What is the y-intercept of the function f(x) = -2/9x + 1/3x?

Answers

Answer:

Step-by-step explanation:

Tennis balls with a diameter of 2.5 inches are sold in cans of three. The can is a cylinder. What is the volume of the space NOT occupied by the tennis balls? (Assume the tennis balls touch the can on all sides, top and bottom.) Round to the nearest tenth and show all steps and reasoning.

Answers

Answer:

The space NOT occupied by the tennis balls is 12.26 cube inches.

Step-by-step explanation:

The space NOT occupied = volume of cylinder - total volume of spheres

The can is cylinder with volume = [tex]\pi[/tex][tex]r^{2}[/tex]h

where r is the radius and h the height of the cylinder

With the given condition,

r = [tex]\frac{diameter}{2}[/tex] = [tex]\frac{2.5}{2}[/tex]

                 = 1.25 inches

h = 3 x diameter = 3 x 2.5

                     = 7.5 inches

So that,

Volume of the can = [tex]\frac{22}{7}[/tex] x [tex](1.25)^{2}[/tex] x 7.5

                               = 36.830

Volume of can is 36.83 cube inches.

The tennis ball is a sphere with volume = [tex]\frac{4}{3}[/tex][tex]\pi[/tex][tex]r^{3}[/tex]

                                = [tex]\frac{4}{3}[/tex] x [tex]\frac{22}{7}[/tex] x [tex](1.25)^{3}[/tex]

                                = 8.185

Volume of the tennis ball is 8.19 cube inches.

Since they are sold in three's, then;

total volume of the tennis balls = 3 x 8.19

                                     = 24.57

Volume of the tennis balls is 24.57 cube inches.

Thus,

The space NOT occupied = 36.83 - 24.57

                                           = 12.26

The space NOT occupied by the tennis balls is 12.26 cube inches.

Chandra bowled five games. Her scores were 89, 97, 112, 104, and 113. What is her mean score for the five games?

Answers

Answer:

103

Step-by-step explanation:

89+97+112+104+113=515

515÷5=103

103 is the final answer, hoped this helped.

17 people over max capacity as an expression is what?

Answers

Answer: x + 17

Step-by-step explanation:

if capacity is x, 17 is added to x, hence x + 17

I’m mental i can do this

There are 72 female performers in a dance recital. The ratio of men to women is 2:9. How many men are in the dance recital?

Answers

Answer:

48

Step-by-step explanation:

72 ÷ 3 = 24

so you know that the men is 24 × 2 = 48

48:72 = 2:3

i looked it up and it says x=4 and theres 12 men but i dont think that helps im so sorry i couldnt find anything:(

Find the slope and the y-intercept of the line.
- 9x+3y=-6

Answers

Answer:

slope is 3 and y intercept of -2

Step-by-step explanation:

the set of non integers

Answers

Step-by-step explanation:

A non negative integer is an integer that that is either positive or zero. It's the union of the natural numbers and the number zero

Please help will give brainliest to answer

Answers

Answer:

your intire hw is not worth 5 pts but I will say that to find the slope is how many times the line goes up or down and to the right and left until it reaches the next dot

x-y=11 2x+ y=19 solve using elimanation

Answers

Answer:

the answer is  [tex]x=10,\:y=-1[/tex]

Step-by-step explanation:

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.

hope this helps :)

same question again. ugh

Answers

Answer:

-3

Step-by-step explanation:

the slope is -3 because it goes down 3 y for every 1 forward on x

Answer:

[tex]m=-3[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula (Rate of Change): [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (1, -3)

Point (-1, 3)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{3+3}{-1-1}[/tex]Add/Subtract:               [tex]m=\frac{6}{-2}[/tex]Divide:                          [tex]m=-3[/tex]

find the slope of the line passing through each pair of points. if the slope is undefined, write undefined. (5,9) and (5,-3)

Answers

Answer:

i believe undefined

Step-by-step explanation:

Slope

m= −3−9

5−5

-12/0

Which equation best represents the line?
Oy = 3x + 3
Oy=-x-8
O y = -x + 3
2
x+
Oy = 3x +
2

Answers

Answer:

Y=(1/2)x + 3

Step-by-step explanation:

The equation of the line is y = (1/2)x + 3.

We have,

The equation of a line is written as:

y = mx + c

Where m is the slope and c is the y-intercept.

Now,

From the line,

We have the following coordinates:

(2, 4) and (4, 5)

Now,

Slope.

m = (5 - 4) / (4 - 2) = 1/2

And,

(2, 4) = (x, y)

Substituting.

y = mx + c

4 = (1/2) x 2 + c

4 = 1 + c

c = 4 - 1

c = 3

Now,

y = (1/2)x + 3

Thus,

The equation of the line is y = (1/2)x + 3.

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What is the value ofx in the equation X=-45
O -75
O -27
O 27
O 75

Answers

I think there is something that you are missing because none of the options are correct.

Can whoever answers this give a full explanation of what numbers i'm supposed to put (screenshot is there)

Answers

Long division is easier than you think. Here's how to solve this problem:

1. See how many times 36 can go into 66.

Multiply until you reach a number that is closest (or exact) to 66.

36 x 1 = 36; 36 x 2 = 72.

72 is over 66, so 2 doesn't work. Therefore, we'd put "1" in the first space on the shelf (right above the 6).

2. Subtract.

Now that we have "1" on the shelf, you need to subtract 36 by 66. We do this because 36 x 1 is 36. If it were the number "2" on the shelf, we'd subtract 72, and so on.

66 - 36 = 30.

3. See how many times 36 can go into 30.

Since it can't go into 30, we bring the 3 down (hence the arrow pointing down). The number is now 303.

4. See how many times 36 can go into 303.

I won't write it all out, but after multiplying 1-7 by 36, we find that the closest solution is 36 x 8 = 288.

We put "8" on the shelf, next to "1".

5. Subtract.

Now that "8" is on the shelf, we subtract 288 by 303, which gives us 15.

Since 36 cannot go into 15, and there are no more numbers we can drag down, your remainder is 15.

Your answer is:

36 R 15

The first two boxes under 663 should be filled with 36, the next three under that should have 303, the next three should have 288, and the final two boxes should have 15.

I hope this helped!

Which statement is true about a shape and its dilation? A.The corresponding angles of a shape and its dilation are congruent. B.The corresponding angles of a shape and its dilation are not congruent. C.The side lengths of a dilation are always smaller than the corresponding side lengths of the original shape. D.The corresponding side lengths of a shape and its dilation are congruent.

Answers

Answer:

A.The corresponding angles of a shape and its dilation are congruent.

Step-by-step explanation:

Dilation is a type of rigid transformation in which the dimension of a shape is either increased or decreased to produce its image. It involves a change in the dimensions of the shape by a required factor. In the process, the side lengths of the image are different to the original lengths. But the angles are not affected.

Thus, the respective angles of the given shape and its image are the same.

The appropriate answer to the given question is A.

THE DOTS SHOWN REPRESENT WHAT KIND OF SEQUENCE?
D is for difference
R is for ratio
Arithmetic is Adding
Geometrical is Multiplying

Answers

The dots are getting bigger so i would say the third or last option.

A grocery store sells a bag of 3 oranges for $1.71. How much does one orange cost?

Answers

Answer: 57 cents each

Answer:

57 cents

Step-by-step explanation:

divide the amount of money by the amount of oranges to find the amount each of them are. so if each of them are 57 then 1 is 57.

PLZ HELP ASAP PLZ AWSER DONT SKIP PLZ ASAP

Answers

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

HELP PLEASE!!! I NEED HELP ASAP!!!

Answers

Answer:

d

Step-by-step explanation:

Pleas help me on this

Answers

Answer:

3x

Step-by-step explanation:

x+x+x

=3x

if i am wrong than sorry

I think 3x I’m not completely sure tho!

The length of the rope was cut from 30 inches to 24 inches. By what percent was the price of the rope reduced?

Answers

20 percent is the answer

find the midpoint of the segment with the following endpoints. (8,10) and (1,4) ?​

Answers

i believe it is (4.5, 7)

Solve for theta to the nearest degree​

Answers

Step-by-step explanation:

So first thing is to determine which trigonometric ratio we use here. Theta is adjacent to 5 and 8 is the hypotenuse, so we should be using Cosine.

So we set up the equation

cos θ = adj/hype

cos θ = 5/8

θ = [tex]cos^{-1} (5/8)[/tex]

θ=51.3178125...

θ=51°

Help me with this Fraction problem please, IT's Simple

Answers

Answer:

x=2

Step-by-step explanation:

26 divided by 13 is 2

What is the slope-intercept equation of the line that is perpendicular to y-4=-2/3(x-6) and that passes through (-2, -2)?

Answers

Answer:

The slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Step-by-step explanation:

Given the equation

[tex]y-4=-\frac{2}{3}\left(x-6\right)[/tex]

comparing it with the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

where m is the slope

so the slope of the line is -2/3.

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 3/2

The point-slope form of the equation of the perpendicular line that goes through (-2, -2) is:

[tex]y-y_1=m\left(x-x_1\right)[/tex]

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

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

writing the line equation in the slope-intercept form

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

subtract 2 from both sides

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

[tex]y=\frac{3}{2}x+1[/tex]

Thus, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

Here,

As the slope-intercept form is

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept

so

[tex]y=\frac{3}{2}x+1[/tex]

m=3/2

b = y-intercept = 1

Therefore, the slope-intercept equation is:

[tex]y=\frac{3}{2}x+1[/tex]

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4/5 + 3/5 add following numbers and simplify The temperature on Mars may reach a high of 70 degrees Fahrenheit at the equator in the summer. It may reach a low of -225 degrees Fahrenheit at the poles. Which expression gives the difference between those temperatures? 2. Next she needs to find her maximum heart rate m by subtracting her age a from 220. Write anequation she can use. Expand.Your answer should be a polynomial in standard form.(y2 + 6)(-2y + 7) = Look at the photo. Explain how it shows both an individual and a community BPut the words in the correct order to make questions. Then complete the answers. Use thecorrect form of be or do / does. 8 points (1 point each)1. A?(student / you/ a / be / part-time)B.I only go to class twice a week.2. A?(your / go out / sister / do / a lot)BShe likes to stay home.3. A?(here / do / parents / live / your / near)BThey live nearby.4.A?(have / do / sisters / any / you)BBut I have a brother.T -c+1 > 2 now this one solving a compound inequality. check all that apply. Which fraction represents the ratio of the red portion of the circle to thecomplete circle? 3. This Political Cartoon is commenting on...?A. The Space RaceB. The Vietnam WarC. The Arms RaceD. The Berlin Wallca Josh plans to spend at most $45 on a gift for his mother, including the $15 he plans to spend on flowers. Which inequality represents x, the range of amounts that Josh can spend on the gift? what are two solutions to x < 8 4 6/7 + 3 5/7 please help me PLEASE HELP!! WILL GIVE BRAINLIEST!!! I AM SO Confused plsssss helpSouth America : _____________ :: Africa : ___________ A. Amazon River...Nile River B. Mississippi River... Sahara Desert C. Andes Mountains...Ural Mountains D. Nile River...Amazon River Please answer correctly !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!! How dose the detail of the children on the spirits legs contribute to the overall text? Use place value multiplication with powers of 10 or equivalent fractions to explain what is happening mathematically to the decimal points in the divisor and the dividend before dividing How is (5 , -7) and (-5 , 7) related on a coordinate plane? helpppppppppppppppppppppppppp