Help hurry pls. We are doing average rate of change and I need help

Answer:

Standard deviation decreases and mean increases

Step-by-step explanation:

The test scores are:

42, 72, 74, 78, 80, 80, 85, 88, 92

Mean = (42 + 72 + 74 + 78 + 80 + 80 + 85 + 88 + 92)/9 = 76.77

Median is 5th term which is 80

Range is highest score - lowest score = 92 - 42 = 50

Standard deviation from an online calculator gives 13.69

Now,we want to know what happens to those values when the outlier is removed. The outlier in this case is 42 because it is not consistent with other scores which range from 72 - 92.

Thus,the new set of scores are;

72, 74, 78, 80, 80, 85, 88, 92

New Mean = (72 + 74 + 78 + 80 + 80 + 85 + 88 + 92)/8 = 81.125

New Median will be the average of the 4th and 5th term which is (80 + 80)/2 = 80

New Range = 92 - 72 = 20

New Standard deviation from an online calculator gives 6.39

From the comparison above when the outlier is removed, we can say that;

- Mean increases

- remains the same

- Range decreases

- standard deviation decreases

Answer:

42592

Step-by-step explanation:

Answer:42592

Step-by-step explanation: So what you do is do 88 times 88/22 and so on :)

Answer:

the difference between them is letter b would be on the left side in the negative and a is in the positive

Step-by-step explanation:

hoped this helped lmk if it did

Answer:

y=-2/3x+3

Step-by-step explanation:

First subtract 6x from both sides and make it 9y=-6x+27

Secondly, divide both sides by 9 making the equation y=-2/3x+3

Answer:

y = -2/3x + 3

General Formulas and Concepts:

Pre-Algebra

Algebra I

Standard Form: Ax + By = C

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

[SF]   6x + 9y = 27

Step 2: Rewrite

Find slope-intercept form.

Answer:

I have done it I hope it's the right answer

Answer:

its a

Step-by-step explanation:

8 divided by 1.6 is 5 , have a good day <3

Answer:

x ≤ 40

Step-by-step explanation:

Pounds of food : number of guinea pigs

1 pound : 5 guinea pigs

8 pounds : x guinea pigs

Where,

x = number of guinea pigs at 8 pounds of food

Inequality:

1 : 5 ≤ 8 : x

1/5 ≤ 8/x

Cross product

1*x ≤ 5*8

x ≤ 40

The solution to the inequality is

x ≤ 40

Answer:

B :)

Step-by-step explanation:

Answer:

3x5+11 equals 26

Step-by-step explanation:

Answer:

Move each point 2 left then 3 up then connect the dots

Step-by-step explanation:

Answer: (2,2)

Step-by-step explanation:

I'm going to use substitution to solve this:

First, I use the second equation to solve for y in terms of x.

2x - y = 2

-y = 2 - 2x

y = 2x - 2

Then, I plug the value for y into the first equation:

2x + 4y = 12

2x + 4(2x - 2) = 12

2x + 8x - 8 = 12

10x - 8 = 12

10x = 20

x = 2

Now that we have x, we can plug it into either equation (I used the first) to get the value for y:

2x + 4y = 12

2(2) + 4y = 12

4 + 4y = 12

4y = 8

y = 2

We get the point (2,2) as a solution.

Note: This is the point where both lines intersect.

After solving the equation, the value of for the points x and y are (2, 2).

Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

As per the given equation in the question,

2x + 4y = 12   (i) and

2x - y = 2  (ii)

Solve the value for y,

5y = 10

y = 10/5

y = 2

Substitute y=2 in equation (i)

2x + 4(2) = 12

2x = 12 - 8

x = 4/2

x = 2

Therefore, the point is (2, 2).

To know more about Equation:

https://brainly.com/question/14686792

#SPJ5

Answer:

(-3/8) (-5/7) (-1/4) is the answer

Step-by-step explanation:

please mark me as brainliest please

Answer:

3 water bottles

Step-by-step explanation:

25-10=15

15/5=3

Answer:

greater than because that is what it is your welcome

Answer:

Formula : V = I (1 + R)^T  , Deers after 5 years ≈  556

Step-by-step explanation:

Exponential formula for  final value 'v' - for initial value 'i' at growth rate 'r' for a period of time 't'

V = I (1 + R)^T

As per given deer case, I = 330 & R = 11% = 0.11

V = 330 ( 1 + 0.11 )^t

Predicted deers after 5 years, V = 330 (1.11)^5

330 x 1.685 = 556.05

Answer: It is .............. A or C but I can't see the question you're trying to answer

Step-by-step explanation:

Answer:

5 + 3a

Step-by-step explanation:

5 - a + 4a =

5 + ( -a + 4a ) =

5 + ( 4a - a ) =

5 + ( 3a )

Answer:

the bottom left one is right

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The answer is the first one. We've used that in previous questions.

B is wrong. It needs to be equal to something (180 in this case). B is also saying that the first angle is = to the sum of the other two. Not so.

C is wrong. the third angle's x term has to be plus.

D has the same problem.

Answer:

9 7/8 - ( -2 4/5 - 1/2)  = 13.175

Step-by-step explanation:

Hope this is correct and helps.

Answer:

168

Step-by-step explanation:

16.8 = 10%

x = 100%

To get to 100%, you have to multiply 10 by ten and 16.8 by 10. Like this:

16.8 = 10%                   original equation

16.8 (10) = 10% (10)      * both sides by 10

168 = 100%                  simplify

:3))

Answer:

168 :)

Step-by-step explanation:

16.8 is 10% of 168

I hope this helps, have a nice day/night, much love, xo, nm <3

Answer:

After doing the math, I came up with B and/or C could be the answer

Answer:

x = 5

Step-by-step explanation:

substitute the y  equation into -2x +3y =8 and you will get 5 as the solution :)

Answer: An equation is a mathematical statement that shows the equal value of two expressions while an inequality is a mathematical statement that shows that an expression is lesser than or more than the other. An equation shows the equality of two variables while an inequality shows the inequality of two variables.

Step-by-step explanation: Hope this helps! :D

one scenario can be that if you have less than or equal amount of money only then you can buy a certain thing......e.g : if price of a game is 40....then i should have money equal to or more than fourty to buy the game......

money>=40

Answer:

5:6 5books to 6 pencils

Answer:

5:6, 5 to 6 or 5/6

Answer:

The answer is C. 18 units

Step-by-step explanation:

Please mark brainliest

Hope this helps!

Answer:

C) 18 square units

Step-by-step explanation:

There are many ways to go about solving this.  You could divide it into two triangles with a middle section.  But it might be easier just to count the squares:

whole squares = 12

half squares = 4 (which equals 2)

3/4 square = 4

1/4 squares = 4

(add the 3/4 and 1/4 squares to equal 4)

12+2+4=18

Answer:

Oh, it's (-1,-1)

Once you graph both lines, you find the point of intersection and they both intersect at point (-1,-1)

If you have any more questions let me know! :)

Step-by-step explanation:

The answer is in the image.

Answer:

p = 10.50 + b b = 10.50 + p b = 10.50p p = 10.50b​

Step-by-step explanation:

The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 21, 42, 63, 84, and 105. Points are shown on ordered pairs 0, 0 and ..

The graph below shows the price of different numbers of mats at a store: A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 21, 42, 63, 84, and 105. Po - the ... 21, 42, 63, 84, and 105. Points are shown on ordered pairs 0, 0 and 2, 21 and 4, 42 and 6, 63 and 8, 84.

Answer:

p = 10.50 + b b = 10.50 + p b = 10.50p p = 10.50b​

Step-by-step explanation: