Sara's grades are 78, 72, 66, 80, and 84. Sara decides to study hard for the final. Her score is 100. As an outlier, how does
100 affect the mean of Sara's previous scores? Assume all scores are treated equally.
A)
The outlier did not affect the mean.
B)
The outlier raised the mean by 4 points.
C)
The outlier lowered the mean by 2 points.
D)
The outlier raised the mean by 2 points.

Answers

Answer 1

Answer:

B

Step-by-step explanation:

The Mean(Average) of 78+72+66+80+84 is 76 because (78+72+66+80+84)/5* and (78+72+66+80+84+100)/6* is 80.

*You get this number by counting the number of numbers you entered (78+72+66+80+84) there are 5 numbers.


Related Questions

I need help please. ​

Answers

Answer:

$3.06

Step-by-step explanation:

$26.50+$9.50=36

$36.00+8.5%=39.06

Which best represents the inequality?

Answers

aaaaaaaaaaaaalololol good luck b

Answer:

Am doing this one to right now

Step-by-step explanation:

anyone know the answer i don’t need the steps or the work just the answer. ty!

Answers

Answer:

= x^4 y^5 / 3

Step-by-step explanation:

I got this answer  = x^4 y^5 / 3

But my answer is not found directly

And I think they deliberately set up this arrangement to make us mess up

, but in your Options I think it's ( B )

ej bisects def, m dej-5x+7, m JEF=8x-8. find x

Answers

Answer:

x = 5

Step-by-step explanation:

The information given has been sketched out in the attachment below.

Line segment EJ is an angle bisector of angle DEF. Therefore, m<DEJ = m<JEF.

The equation to find x would be expressed as follows:

5x + 7 = 8x - 8

Subtract 5x from each side (subtraction property of equality)

5x + 7 - 5x = 8x - 8 - 5x

5x - 5x + 7 = 8x - 5x - 8

0 + 7 = 3x - 8

7 = 3x - 8

Add 8 to both sides of the equation (addition property of equality)

7 + 8 = 3x - 8 + 8

15 = 3x

Divide both sides by 3

15/3 = 3x/3

5 = x

x = 5

Simplify the expression: 4(9c − 7)

Answers

Answer:

36c - 28

Step-by-step explanation:

4(9c − 7)

Distribute

4 * 9c - 4*7

36c - 28

Find the midpoint of the line segment connecting the two points (5,-3) (-4,7)

Answers

Answer:

The answer is

[tex]( \frac{1}{2} \: , \: 2)[/tex]

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(5,-3) and (-4,7)

The midpoint is

[tex]M = ( \frac{5 - 4}{2} , \: \frac{ - 3 + 7}{2} ) \\ = ( \frac{1}{2} \: , \: \frac{4}{2} )[/tex]

We have the final answer as

[tex]( \frac{1}{2} \: , \: 2)[/tex]

Hope this helps you

4(-8x + 5) - (-33x - 26) =

Answers

4(-8x + 5) - (-33x - 26) =-32x + 20 + 33x + 26=                      (distributive)-32x  + 33x + 26 + 20=                     (combine like terms)  x + 46

Hope it helps.

Nancy buys 16 ounces of ice cream. Every
night after dinner, she eats three ounces. How
much ice cream will be left after four nights?
Make your own function table to solve.

Answers

Answer:

Hopefully you can read it

Step-by-step explanation:

Write a verbal phrase for the following algebraic expression 12y

Answers

The product of a number y and 12 or 12 times a number y. These are both equivalent expressions to 12y

Identify the range of the function shown in the graph.

Answers

B. The highest point y is equal to is 5 and the lowest is -5

Answer:

B

Step-by-step explanation:

I got it correct on A P E X

Find a · b.
a = −5, 1 / 2 ,
b = −5, 6

Answers

Answer:

a · b  = 28 units

Step-by-step explanation:

Given vectors

a = (-5, 1/2)

b = (-5, 6)

The scalar or dot product of the two vectors, given by a · b is

a · b  = (-5, 1/2) · (-5, 6)

To solve this, multiply the first term in a with the first term in b and add the result to the product of the second term in a and the second term in b. i.e

a · b  = (-5 x -5) +  (1/2 x 6)

a · b  = 25 + 3

a · b  = 28

Therefore, the dot product of a and b is

a · b  = 28 units

Write each decimal in words. 4. 0.8 5. 400.29 6. 0.0306

Answers

Answer: four, zero, eighty five, four hundred and two hundred ninety six hundredth, zero and three hudred and six thousandsths  

Step-by-step explanation:

Determine the lowest common denominator and solve the calculation 6/9 -2/3 show work

Answers

Answer:

Step-by-step explanation:

6/9 - 6/9 = 0

i need help with these few questions please i will make you BRAINLIEST

Answers

Answer:

4a)74.692

4b)530.809

4c)1,207.034

5) i think both, they are just saying them in standard form and expanded form(Amy)

Step-by-step explanation:

i’ll give a thanks if you answer just need some help probably gonna be my last question

Answers

Answer:

Area is the quantity that expresses the extent of a two-dimensional figure or shape or planar lamina, in the plane. ... In mathematics, the unit square is defined to have area one, and the area of any other shape or surface is a dimensionless real number. Hope this help :)

Step-by-step explanation:

Answer:

See below.

Step-by-step explanation:

The cost of the lunches for the field trip can be represented by the expression Identity the values to make these expressions true Expand 29 to create an equivalent expression with fiendly numbers Distribute the Evaluate the multiplication 80 +36 +24​

Answers

Answer:

Expand 29 to create an equivalent expression with friendly numbers.

4(20+9) + 4(6)

Distribute the 4.

4(20)+ 4(9)+4(6)

Evaluate the multiplication

80 + 36 + 24 = 140

Step-by-step explanation:

i just took the assignment.

i hope this helps : ))

Answer:

A-20 + 9

A-4(20)+4(9)+4(6)

A-140

Step-by-step explanation

just did the assigment good luck <3

3w+4w-2=12 solve equation

Answers

Answer:

W= 2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

3:5. Then, it sold four times as many fiction books and 40%

more cartoon books. As a result, it sold 800 more fiction books

than cartoon books. How many fiction and cartoon books were

sold altogether in the end?

Answers

Complete question:

A book shop sold fiction books and cartoon books at a ratio of 3:5. Then, it sold four times as many fiction books and 40% more cartoon books. As a result, it sold 800 more fiction books than cartoon books. How many fiction and cartoon books were sold altogether in the end?

Answer:

3040

Step-by-step explanation:

Given the following :

Sales ratio = 3:5 (fiction : cartoon)

Let total number of books sold = x

Fiction books = 3x

Cartoon books = 5x

Four times as many fiction books = 4 × fiction books = 4*(3x) = 12x - - - (1)

40% more cartoon books = 40/100 = 0.4

5x(1.40) = 7x - - - (2)

As a result, 800 more fiction books than cartoon :

Fiction - cartoon = 800

12x - 7x = 800

5x = 800

x = 160

Substitute x into (1) and (2)

Fiction books : 12(160) = 1920

Cartoon books : 7(160) = 1120

1920 + 1120 = 3,040

is 1 11/17 a rational number

Answers

Answer:

yes

Step-by-step explanation:

Rational numbers are integers, fractions, decimals, and whole numbers.

plz help. Write the fraction in lowest terms.

[tex] \frac{12}{30} [/tex]

Answers

Answer: 0.4

12/30 > 2/5 or .4

Answer:

2/5

Step-by-step explanation:

[tex] \frac{12}{30} = \frac{2 \times 6}{5 \times 6} = \frac{2}{5} \\ [/tex]

In circle V. r= 14ft.
What is the area of circle V?
14Tr ft2
28tt ft2
49tt ft2
196 ft2

Answers

Answer :

Radius of circle = 14ft

We have to find the area of circle[tex].[/tex]

Area of circle of radius R is given by

A = π × R²

⇒ A = π × R²

⇒ A = π × (14ft)²

A = 196π ft²

✪ Learn More :

Area of sqaure : (side)²

Area of rectangle = l × b

Area of triangle = 1/2 × b × p

What is the Difference between 8 and -4

Answers

Answer:

One is postive and the other is negative but both are integers and whole numbers

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

difference=minus

8-(-4)

8+4=12

factorize
m²-2mn+n²-9r​

Answers

Answer:

[tex](m-n)^{2}-9r[/tex]

Step-by-step explanation:

m²-2mn+n²-9r​

[tex](m-n)^{2}-9r[/tex]


A regular polygon of n sides has its sum of interior
angles as 900° What is n?
A. 5
B.6
C.7
D. 8

Answers

Answer:

C. 7

Step-by-step explanation:

n is the number of sides of the polygon

[tex](n - 2) \times 180 = 900[/tex]

Divide both sides of the equation by 180

[tex] \frac{(n - 2) \times 180}{180} = \frac{900}{180} \\ n - 2 = 5 \\ n = 5 + 2 \\ n = 7[/tex]

What is the solution to this equation?
X+ 7 = -8

A. X= -1
B. x= 1
C. x= -15
D. x = 15

Answers

Answer:

your answer is option C.. X equal to -15

Step-by-step explanation:

x=-8-7

x= -15

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Answer:

X is C

Step-by-step explanation:

-15 + 7 = -8. hope this helped

what property is 13+(7+29)=(13+7)+29

Answers

Answer:

associative property

Step-by-step explanation:

grouping changes

what is 1/2 add 1/5
PLEASE HELP

Answers

Answer:

1/2+1/5=7/10

Step-by-step explanation:

1/2=5/10

1/5=2/10

2/10+5/10=7/10

Answer:

0.7 or 7/10

Step-by-step explanation:

When adding fractions they always need to have the same denominators,and the one they both have similar to is being equal to 10.

1/2 will get multiply with 5 on the numinator and the denominator having you get a fraction of 5/10.

You will do the same with 1/5 multiply it with 2 on the numinator and denominator having you get  5/10.

Since the dneominators are the same you keep it 10,and just add 5 and 2. Giving you a answer of 7/10

7 [ 3 • ( -2 ) -6 ] = ?

Answers

7[3•(-2)-6] = -84

Mark As Brainliest**

Solve the system by graphing.

2x + 3y = 6
6x= -9y + 18

Answers

Answer:y= -2x/3 + 2

Step-by-step explanation:

The answer is I pretty sure A

Find the value of h(-67) for the function below. h(x) = -49x − 125

Answers

Answer:

h(-67) = 3158

Step-by-step explanation:

Simply plug in -67 for x:

h(-67) = -49(-67) - 125

h(-67) = 3283 - 125

h(-67) = 3158

Answer: h(-67) = 3158

Step-by-step explanation:

-49(-67)-125

3283-125

3158

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