help me . i need help

Answer:

Variability

Step-by-step explanation:

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how "spread out" the values in a data set are.

Answer: 18 quarters

Step-by-step explanation:

second pile = x

first pile = x - 5

third pile = x - 4

fourth pile = 3x  

total amount of quaters = 27

x + x - 5 + x - 4 + 3x = 27  

6x = 36 x = 6        

fourth pile = 3(6) = 18

Solution:

Note that:

This means that...

First, let's find the number of quarters in 2nd pile.

Open the brackets.

Combine like terms.

Simplify the RHS.

Add 9 both sides.

Divide 6 both sides.

Now, substitute the number of quarters in 2nd pile in it's equation.

Answer:

23

Step-by-step explanation:

Answer:

Angles 8 and 2 are alternate exterior angles, meaning they are on the same side of the transversal that runs through it but are on the outside.

Alternate exterior angles are supplementary, which means they both have a sum of 180°.

So if you were to find the supplement of 60°, it would be 120°.

This is because;

x + 60 = 180

-60        -60

x = 120, so ∠2 = 120°

Answer:

122,122,58,58

Step-by-step explanation:

Answer:

D. (x, y) --> (2/5x, 2/5y)

Step-by-step explanation:

if you multiply each coordinate on the outer ellipse B by 2/5, you get the coordinates for the inner ellipse A.

For example, if you multiply each unit in coordinate (5,0) on ellipse B by 2/5 you would get:

5*2/5 = 2

0*2/5 = 0

= (2,0)

Hope this helped! :)

Answer:

D

Step-by-step explanation:

Answer:

1. 83.6

2. 24

3. 95/2

4. 3

5. 30

6. 84.5

Step-by-step explanation:

Answer:

area is just multipling the base and the height.

ˆ2 means squared

Step-by-step explanation:

1) 7.6 is the height and 11 the base, so the area would be 83.6cmˆ2

2) there is a triangle but to find the area we divide it into 2 parts. first lets get the measurments settled, we can see that the height is 4ft, and the triangle on the left we can see that the base is the same size as the height, look at the image i attatched if you dont understand how i am explaining it. but we know that the total size of the base is 12, right? well if we subtract the 4 ft from the left triangle we are left that the right triangle has the size of 8ft for base and 4ft for height, if we multiply we have 32ftˆ2 but its a triangle so remember we have to divide this answer by 2, giving us the first area of 16ftˆ2. now we move onto the left triangle, 4 from the height x 4 from the base gives us 16cmˆ2 same as before we divide by two which gives us for the second area 8ftˆ2, now we add both areas we obtained, giving us the area for the whole figure which is, 24ftˆ2

3) for this one we will divide it into 3 parts, look at the image attached, for the steps

4) Ahhh! fractions, dont be nervous these are easy peasy, we know the base is 4in and the height is 3 1/2in. lets convert the fraction into decimals so its easier, so now we have 3.5 as height and 4 as base, we multiplay them which will give us 14inˆ2 since its a triangle we have to divide by 2! our answer will be 7inˆ2

For 5 and 6 look at the image :]

1. 2500

2. 3.71

3. 0.49

4. 0.48

5. 4000

6. 1.5

Kilometers -> meters (multiple my 1000)

Centimeters -> meters (divide by 100)

Millimeters -> meters (divide by 1000)

7. 600

8. 7.99

9. 0.0009

10. 0.0356

11. 6

12. 0.018

Kiloliters -> Liters (multiply by 1000)

Centiliter -> Liters (divide by 100)

Mililiter -> Liters (divide by 1000)

13. 4000

14. 6.61

15. 1.5

16. 0.02

17. 1950

18. 0.0023

Kilogram -> Grams (multiply by 1000)

Centigram -> Grams (divide by 100)

Milligram -> Grams (divide by 1000)

19. 0.019

20. 5500

21. 0.049

22. 0.73

23. 60

24. 2.54

(sorry if any are wrong)

Answer:

169,611

Step-by-step explanation:

x = total number of registered doctors

28.3/100 = 0.283

0.283x = 48,000

/0.283      /0.283

x = 169611.307

x = 169,611 (to the nearest whole number)

Therefore, our final answer is 169,611.

Hope this helps!

Answer:

the greatest common factor is 3

Answer:

3

Step-by-step explanation:

it’s because 3 can go into 12 and 27 and it’s the highest! Hope this help :)

Answer:

1st one true

second one false

3rd one true

4th one false

have fun

Answer:

1st and 3rd are true

2nd and 4th are false

Step-by-step explanation:

Answer:

y=-2x+3

Step-by-step explanation:

m = slope = y/x = -4/2 = -2

b = y intercept = 3

Answer:

f(x)=-2x-4

Step-by-step explanation:

First of all, I want to say that I'm a 5th grade kid, and I'm studying linear functions in eight grade. The equation is f(x) = mx + b. The b is y intercept. Since the y is -1, we know that f(x)=mx+-1, or f(x)=mx-1. Then, we look that the x. It's 2. Then, substitute 2 for m. F(x) = 2x-1. I'm gonna do the other ones. f(x)=4x-5, f(x) = 6x-9.  We know that the x is substracting 2. The y is subtracting 4. So the rule is f(x) = -2x-4

Answer:

Step-by-step explanation:

1- neg x neg  pos

3 x 4 = 12

2- sub and sub = add

6+6= 12

3- add and sub = sub

5-4= 1

I hope you understand

Answer:

1) No
2) Yes

Step-by-step explanation:

1) 7 represents no of people and 350 represents the price

2) Yea because is if its 50 dollars for one 2 people is 100 and 3 people 150

Answer:

to reach he needs to kick along the hypotenuse, with the legs of 40 and 10

Use the  Pythagorean theorem

Step-by-step explanation:

I'm sorry if it is wrong... This is how i understood the problem

Answer:

Step-by-step explanation:

Math Matching games:

5(5x + 2)

5(5x) + 5(2)

25x + 10 <== answer

2(x + 4)

2(x) + 2(4)

2x + 8 <== answer

3(4x - 9)

3(4x) - 3(9)

12x - 27 <== answer

7(2x + 3)

7(2x) + 7(3)

14x + 21 <== answer

4(3x - 5)

4(3x) - 4(5)

12x - 20 <== answer

6(5x + 1)

6(5x) + 6(1)

30x + 6 <== answer

8(x - 5)

8(x) - 8(5)

8x - 40 <== answer

5(4x - 3)

5(4x) - 5(3)

20x - 15 <== answer

2(2x + 7)

2(2x) + 2(7)

4x + 14 <== answer

3(3x + 3)

3(3x) + 3(3)

9x + 9 <== answer

7(5x - 2)

7(5x) - 7(2)

35x - 14 <== answer

4(x - 8)

4(x) - 4(8)

4x - 32 <== answer

True or false Part 1:

A. 3x + 3 = 3(x + 1) <== true

B. 2x + 2x + 4 = 8x <== false

C. 3x + 3 = 2x + x + 3 <== true

D. 2x + 2x + 4 = 2(x + 1) <== false

E. 5x + 6 = 3x + 3x <== false

F. 3x + 3 = 3(x + 3) <== false

G. 2x + 2x + 4 = 4(x + 1) <== true

H. 4x + 3 = 3x + 4 <== false

I. 8 + 2x + 4x = 14 <== false

J. 4x + 4 = 3x + x + 2 + 2 <== true

K. 3x + 2x + 4 = 3x + 2(x + 2) <== true

L. 6x + 2x = 3x + 5x <== true

M. 8x = 8 + x <== false

N. 8x = x + x + x + 5x <== true

True or false Part 2:

I. 8 + 2x + 4x = 14 <== false

J. 4x + 4 = 3x + x + 2 + 2 <== true

K. 3x + 2x + 4 = 3x + 2(x + 2) <== true

L. 6x + 2x = 3x + 5x <== true

M. 8x = 8 + x <== false

N. 8x = x + x + x + 5x <== true

O. [tex]x^2+3x=3x+x^2\ < ==\ true[/tex]

P. [tex]2x^2+3=2+x^2+x^2+1\ < ==\ true[/tex]

Hope this helps!

[tex]\mathbb{FINAL\;ANSWER:}[/tex]

[tex]\huge\boxed{\sf{Option\;B}}[/tex]

[tex]\mathbb{SOLUTION\;WITH\;STEPS:}[/tex]

Hi! Hope you are having a nice day!

Slope formula:

[tex]\displaystyle\frac{y2-y1}{x2-x1}[/tex]

plug in the values

[tex]\displaystyle\frac{1-(-6)}{-2-4}[/tex]

Check the options:

Hope you could understand everything.

#CarryOnLearning

Answer:

option B

Step-by-step explanation:

i did the quiz and got B

Answer:

B

Step-by-step explanation:

Answer: B: Unlikely.

Step-by-step explanation: Lower probabilities have less of a likelihood when it comes to an event like this.  1/8 is a pretty low probability, so, therefore, it isn't likely that landing yellow on a spinner would happen at all.  

Let me know if this is right! :)

Answer:

first question:

63

second question:

1040

Step-by-step explanation:

Answer:

.

Step-by-step explanation:

the question is hard to see...

Kind note:

I am sure that the triangle you meant was in the image attached. I will find n in the image I attached.

Solution:

We know that:

Step-1: Find ∠C.

Step-2: Find n.

52 and n are a linear pair.

Answer:

y = 2Kx -5

Step-by-step explanation:

make karen's coins=x and Kevin's coins=y

the information given tells us that Kevin has 5 less coins than double Karen's. This means that to find Kevin's amount of coins, you must double Karen's coins (2x) and then subtract 5 (-5). Hope this helps!

y = 2x -5

Answer:

In order from largest to smallest:

quart, pint, cup

Step-by-step explanation:

A quart is the same thing as 4 cups or 2 pints. If we still need more liquid we can switch to using gallons. However, a gallon is the same as 16 cups or 8 pints or 4 quarts.

Answer:

1. 13
2. 3.14 (estimation: 3)

3. 14

Step-by-step explanation:

  So, if each square represents 1 square inch, then you know that the big square equals 5x5 square inches, or 25 square inches. So, for the first problem, you can subtract 25 by 12, because we know that the white squares sum to 12. For question 2, the formula to find the area of a circle is pie*radius^2, so we get 3.14*1^2, which is 3.14. For number 3, we can simply count the shaded squares, and you get 14.

Answer: D

Step-by-step explanation:

The input (x) can only have one output (y).