PLEASE HELP ME!!!! I REALLY DON'T UNDERSTAND THIS!!

Answer:

Yes it’s a function

Step-by-step explanation:

It has x and y values the x values would be the inputs the outputs are the y values the domain D= -4, -2, 0, 3, 7, then the range R= 12, 6, 0, -9, -21

Good luck! I hope it’s right don’t trust my abilities fully.

Answer:

The last one

Step-by-step explanation:

When you put it together it will equal the correct shape.

Answer:

The number of pages in each book varies more last summer than this summer

Answer:

Step-by-step explanation:

[tex]2n^4*5n^4\\\\2(5)*n^{4+4}\\\\10n^8[/tex]

In your example, the terms have the same bases, so you just add them together.

Hope this helps!

Answer:

$20.60

Step-by-step explanation:

$25.75 x 20% = $5.15

$25.75 - $5.15 = $20.60

Answer:

$23.75

Step-by-step explanation:

Answer:

use the formula 22/7 x r^2

r is the radius. the radius is half of the diameter. the diameter is the line that cuts the circle into two parts running through the center

Answer:

225%

Step-by-step explanation:

Convert the fraction to a decimal, then multiply by

100

.

Answer:

0 because there is no in-between of 3 2/4 and 3 2/4

Step-by-step explanation:

Answer: the answer is 7200

Step-by-step explanation:

Answer:

Step-by-step explanation:

Step-by-step explanation:

3a.

there are 40 students.

each one had to get to school one way or another. so, all of them have to be in the table in one category.

I am just surprised that "car" is not an option there.

anyway, we have

11 + 7 + 9 + 6 = 33

so, there are 40-33 = 7 students left for the train category.

3b.

I cannot draw it for you.

but you need to consider the following table :

all 40 students are the full 360° of the circle.

school-bus are 11 students = 11/40 × 360 = 11×9 = 99°

public bus are 7 students = 7/40 × 360 = 7 × 9 = 63°

walk are 9 students = 9/40 × 360 = 9 × 9 = 81°

bicycle are 6 students = 6/40 × 360 = 6×9 = 54°

train are 7 students = 7/40 × 360 = 7 × 9 = 63°

as you can see, the sum is again 40 students and 360°.

you need to draw these 5 pie slices with these angles.

and in each slice you write the number of students in that category.

together, side by side, all 5 slices will fill the whole circle.

Answer:

Question 1: y = x + 4 if x>5

Question 2: y = x

Question 3: y = -x-4

Question 4: y = 3x-6

Step-by-step explanation:

Ok, I will admit, these questions are a bit confusing, but I will try my best.

Question 1: y = |x-3| + |x+2| - |x-5| if x>5. So, let's plug in a number greater than 5 - 6.  y = |6-3| + |6+2| - |6-5|. Inside the absolute value, every number is positive, which pretty much renders the absolute value symbol useless. So, you can take the equation and change the absolute value lines into parentheses.  y = (x-3) + (x+2) - (x-5). In order to get rid of the parentheses, you have to distribute any subtraction symbols which is in front of x-5. This makes our equation  y = x - 3 + x + 2 -x + 5. Combine like terms to get y = x + 4 if x>5.

Question 2: y = |x-3| + |x+2| - |x-5| if -2<x<3. Let's plug in a number between -2 and 3 so 0. y = |0-3| + |0+2| - |0-5|. x-3 becomes a negative number, x+2 becomes a positive number, and x-5 becomes a negative number. Just like question 1, we can leave the x+2 alone since it's a positive number, but we have to change the x-3 and the x-5. So we'll take the equation and change the absolute value to parentheses, but for the values that are negative, we have to put a negative sign in front of to make it positive. Our equation looks like y = -(x-3) + (x+2) - -(x-5). Since there are two negatives in front of x-5, we can just make it a plus sign. We distribute the negative to x-3 to make our equation y = -x+3 + x+2 + x-5. Combine like terms to get y = x

Question 3: y = |x-3| + |x+2| - |x-5| if x<-2. Let's plug in -3 since it's less than -2. y = |-3-3| + |-3+2| - |-3-5|. All three parts of the function are negative numbers, so when we change it to parentheses, all parts will have a negative to distribute. Our equation looks like y = -(x-3) -(x+2) - -(x-5). Since there are two negatives in front of x-5, we can just make it a plus sign. We distribute the negative to x-3 and x+2 to make our equation y = -x+3 + -x-2 + x-5. Combine like terms to get y = -x-4.

Question 4: y = |x-3| + |x+2| - |x-5| if 3<x<5. Let's plug in 4 since it's in between 3 and 5. y = |4-3| + |4+2| - |4-5|. Only x-5 is negative so that's the only one we need to put a negative in front of when we change it to parentheses. Our equation looks like y = (x-3) + (x+2) - -(x-5). Since there are two negatives in front of x-5, we can just make it a plus sign. Our equation is now y = x-3 + x+2 + x-5. Combine like terms to get y = 3x-6.

Hope this helps! :)

Answer:

27

Step-by-step explanation:

Answer:

378

Step-by-step explanation:

The question is asking us to solve and write an equation to find the amount of feet he/she climbs in 30 mins

12[tex]\frac{3}{5}[/tex] feet per min: 5 x 12 + 3 =  [tex]\frac{63}{5}[/tex]

(or 30 x [tex]\frac{63}{5}[/tex] = 378 too, many ways to solve this, possibly.)

simplify - multiply = 6 x 63 = 378

(30 x [tex]\frac{63}{5}[/tex] = 378)

(12[tex]\frac{3}{5}[/tex] x 30 = 378)

simplify - multiply = 6 x 63 = 378

(all ways work)

Bye, have a great day.

1: Y=X•7

2:Y=X•9

3:Y=X•13

4Y=X÷10

5Y=X•5+1

6I Don't Know

Answer:

B

Step-by-step explanation:

Answer:

D) scalene

Step-by-step explanation:

The triangle shown is a scalene. All three sides of the triangle are different lengths.

Answer:

well first you would need to find the lowest common denominator for both of these which would be 15 and then divide the top number by the number it takes the denominator to get to 15 which for 2/3 it would become 10/15 and 2/5 would be 6/15 and since the equation wants how much she got rid of it would be 10/15-6/16 which equals 4/15 as your answer which you might be able to simplify

Step-by-step explanation: this was on mobile lol

Answer:

[tex]y^1=-1(x-1)+(1+9)[/tex]

Step-by-step explanation:

[tex]y=-1x+1\ \ == > \ \ y^1=-1(x-1)+(1+9)[/tex]

-1 horizontally = 1 units left (the x-axis)

9 vertically = 9 units up (y-axis)

*Black line: is the preimage

*Red line is the translation

Hope this helps!

The longest path from A to B is 36 cm.

It is given that each rectangle in the diagram measures 3 m by 6 cm.

It is required to find the longest path from A to B.

It is defined as the space occupied by the rectangle which is planner 2-dimensional geometry.

The formula for finding the area of a rectangle is given by:

Area of rectangle = length × width

We have a rectangle.

Each rectangle's dimensions are 3  cm by 6 cm means:

The width of each rectangle = 3 cm

The length of each rectangle  = 6 cm

In the figure, if calculate the total length of the left side that is:

= 6+6+6

=18 cm

And topside width:

=3+6+6+3

=18 cm

We can say we a rectangle having dimensions 18 by 18.

If we travel from any path the total length will be covered from A to B:

= 18 + 18

=36 cm

As per the direction, we can calculate different path distances.

Thus, the longest path from A to B is 36 cm.

Learn more about the rectangle here:

brainly.com/question/14383947

Answer:

x=63°

Step-by-step explanation:

The sum of interior angles of a triangle is always equal to 180°

180-55-62=63

Answer:

that is 6/14, which is 3/7 when simplified.

Step-by-step explanation:

Change 2 into a fraction (2/1)

To divide by a fraction, multiply by its reciprocal (6/7x1/2)

That equals 6/14

Simplify to 3/7

Answer :D

[tex]\frac{3}{7}[/tex] (3/7)

Question explanation:

[tex]\frac{6}{7}[/tex]÷ [tex]\frac{2}{1}[/tex]= 6 x 1 = [tex]\frac{6}{14}[/tex] = (simplifying) = [tex]\frac{3}{7}[/tex]

       (7 x 2)

Sorry if this answer is incorrect - Answered by Lilo

it's C because |-6 - 5| can be simplified to |6+5| which is |11| therefore, the distance is 11 blocks.

Answer:

  (6x² +20x -5)/(x² +6x +8)

Step-by-step explanation:

You want the sum of (5x)/(x+2) and (x² -5)/(x²+6x+8).

Each term can be expressed with the same denominator. Then the numerators can be added.

  [tex]\dfrac{5x}{x+2}+\dfrac{x^2-5}{x^2+6x+8}=\dfrac{5x(x+4)}{(x+2)(x+4)}+\dfrac{x^2-5}{(x+2)(x+4)}\\\\\\=\dfrac{5x^2+20x+x^2-5}{(x+2)(x+4)}=\boxed{\dfrac{6x^2+20x-5}{x^2+6x+8}}[/tex]

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Answer:

40°

Step-by-step explanation:

angle on a straight line = 180°

therefore

140+ m<BAC = 180°

m<BAC = 40°

Answer:

the angle BAC is 40 degrees

Answer: 72

Step-by-step explanation:

6 * 2 = 12

12 / 2 = 6

6 * 2 = 12

12 / 2 = 6

6 * 10 = 60

60 / 2 = 30

6 * 10 = 60

60 / 2 = 30

30 + 30 + 6 + 6 = 72