Mathematics High School

find the mean of the following numbers 7 21 2 17 3 13 7 4 9 7 9

Answers

Answer 1

Answer:

9

Step-by-step explanation:

sum of the terms

mean=------------------------------

number of the terms

Answer 2

The mean of the numbers is 9.

Mean is a measure of central tendency. It is the average of a set of numbers. The value of the mean of a set of numbers can be determined by adding the given numbers together and dividing it by the total number.

Mean = sum of numbers / total numbers

Sum of numbers = 7 + 21 + 2 + 17 + 3 + 13 + 7 + 4 + 9 + 7 + 9 = 99

Total number = 11

Mean = 99 / 11 = 9

To learn more about the mean of a set of numbers, please check: https://brainly.com/question/15420908

Related Questions

Which line below is parallel to the line that y = 1/2x - 2?
A) y = 1/2x + 2
B) y = -1/2x + 2
C) y = 1/2 - 2x
D) y= 1/2 + 2x

Answers

Answer:

The answer is b

Step-by-step explanation:

Bc it is just basicly the x and y axis

Help me due in 5 minutes HELP ASAP

Answers

Answer:

J.

Step-by-step explanation:

It crosses through (0,0) and has a slope of 2.5 or rather 5/2 because when the x value is at 4 the y value is at 10 that simplifies to 5/2 or 2.5.

What is the prime factorization of 144? Be sure to show your strategy.

Answers

Answer:

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144. Prime factorization: 144 = 2 x 2 x 2 x 2 x 3 x 3, which can also be written 144 = (2^4) x (3^2)

Step-by-step explanation:

Will mark brainliest answer!
Ben wants to buy a new car stereo and he has already saved some money. He used this inequality to represent the amount he still has to save to be able to buy the stereo, where a represents the amount still left to save.

a + 212 greater-than-or-equal-to 365

If Ben saves $15 a week for the next 10 weeks, will he be able to buy the stereo and why?
No, because he needs to save at least $153, and he will only save $150 over the next ten weeks.
No, because he needs to save $577, and he will only save $150 more.
Yes, because he has already saved $365, and the stereo cost $212.
Yes, because he has already saved $212, and he will save another $150.

Answers

Answer:

No, because he needs to save at least $153, and he will only save $150 over the next ten weeks.

Step-by-step explanation:

Brainliest?

Answer:

the answer is A

Step-by-step explanation:

i got it right on the quiz

What is the percent of change from 70 to 14?

Answers

Answer:

80%

Step-by-step explanation:

70-14=56

56/70=80%

Math question plz help me

Answers

Answer:

The required equation of the line is:

[tex]y=\frac{1}{4}x-1[/tex]

Step-by-step explanation:

Given the equation

[tex]y=-4x+3[/tex]

comparing the equation with the slope-intercept form

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

Here,

m is the slope y is the intercept

so the slope of the line is  -4.

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: 1/4

Therefore, the point-slope form of the equation of the perpendicular line that also intersects the point (8, 1) is:

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

[tex]y-1=\frac{1}{4}\left(x-8\right)[/tex]

add 1 to both sides

[tex]y-1+1=\frac{1}{4}\left(x-8\right)+1[/tex]

[tex]y=\frac{1}{4}x-1[/tex]

suppose 30% out of 500 students play an instrument describe one way to find 30% out of 500

Answers

Answer:

Multiply 500 by 0.30

Step-by-step explanation:

30% = 0.30 In Decimal Form

Multiply

500x0.30=150

150 Is 30% Of 500

30 x 100 = 3,000

3,000 divided by 500

Answer : 6

Fred bags groceries at Bilo. On average, he fills 21 bags for every three customers. The graph below, represent the total bags Fred filled based on the number of customers. What is the average rate of change?

a.) 1

b.) 17

c.) 7

d.) 21

Answers

c) is your answer.


X- 63
Y- 9

divide= 7

Please help
Please help please

Answers

dbhzhxgushshebnxjxjkxdhxhdh bdbdhxjdnbdbdb

Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

∠KNC = 99°

Step-by-step explanation:

∠JNM + ∠KNC = 180    (it is a straight line)

∠KNC = 180 - ∠JNM

∠KNC = 180 - 81

∠KNC = 99°

Answer: 99°

Step-by-step explanation: They are supplementary so 180 - 81 = 99

the endpoint of ab are a(-7, -6) and b(5,6) what are the coordinates of point c on ab that is 1/3 the distance from point a to point b

Answers

Answer:

The coordinates of c are (-3,-2)

Step-by-step explanation:

We have the coordinates of a=(-7,-6) and b=(5,6). We need to find the coordinates of a point c=(x,y) such that:

[tex]d_{ac}=1/3 d_{ab}[/tex]

The coordinates x and y have the same relation as the distance:

[tex]x_{ac}=1/3x_{ab}[/tex]

Or, equivalently:

[tex]x_a-x=\frac{1}{3}(x_a-x_b)[/tex]

Multiplying by 3:

[tex]3x_a-3x=x_a-x_b[/tex]

Operating:

[tex]3x_a-x_a+x_b=3x[/tex]

[tex]2x_a+x_b=3x[/tex]

Dividing by 3:

[tex]x=\frac{2x_a+x_b}{3}[/tex]

Similarly:

[tex]y=\frac{2y_a+y_b}{3}[/tex]

Substituting:

[tex]x=\frac{2*(-7)+5}{3}=-3[/tex]

[tex]y=\frac{2*(-6)+6}{3}=-2[/tex]

The coordinates of c are (-3,-2)

What is 3/4 raised to the power of 3

Answers

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[tex] ( { \frac{3}{4} })^{3} = \frac{ {3}^{3} }{ {4}^{3} } = \frac{27}{64} \\ [/tex]

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I need help pls !!!!!

Answers

D is 77 and f is 55 yeah I don’t have an explanation

Find the value y from the given figure

Answers

Answer:y=28

Step-by-step explanation:

40+3y+2y=180

Subtract 40

3y+2y=140

Combine like terms

5y=140

Divide

y=28

three more than the quotient of a number and 7 is at most 92. Find the number

Answers

Answer:

The number is 623.

Step-by-step explanation:

[tex]\frac{x}{7}+3 =92\\\frac{x}{7} =89\\x=623[/tex]

State if the given functions are functions

Answers

No, the functions shown are not inverses because the inverse for f(n)=-(n+1)^3would be f^−1(n)=−3√n−1.

can someone help me with prombelm number 2

Answers

Question 2
H(x)=x^2-5x+7

h(2)=2^2-5(2)+7
4-10+7
-6+7
1

h(-5)=-5^2-5(-5)+7
10+25+7
35+7
42

h(-8)=-8^2-5(-8)+7
16+30+7
46+7
53


a. 1
b.42
c.53

Answer:

Work shown below!

Step-by-step explanation:

2. [tex]g(x)=\frac{1}{2}x+5[/tex]

[tex]g(4) =\frac{1}{2}*\frac{4}{1} +5= 2+5=7[/tex]

[tex]g(-10)=\frac{1}{2}*\frac{-10}{1}+5=-5+5=0[/tex]

[tex]g(0)=\frac{1}{2} *\frac{0}{1} +5=0+5=5[/tex]

Can someone help me please

Answers

The point at top will be -3,9
The point to the left will be -2,6
The point at the bottom will be 2,2
The point to the right will be 1,5

Ms. Forestal is purchasing greeting cards in preparation for the upcoming winter holidays. At Store A she can get 3 greeting cards for $15.00. At Store B, she can get 6 greeting cards for $24. Which is the better buy?

Answers

Answer:

store B

Step-by-step explanation:

Solve the system below:
10x + y = 22
2x + x = -2

Answers

Answer:

x=negative 2/3,y= positive 86/3

Step-by-step explanation:

LM is the midsegment of trapezoid ABCD. If AB = 46 and DC = 125, what is LM?​

Answers

Answer:

LM = 85.5

Step-by-step explanation:

B1 + B2/2

46 + 125/2

LM = 85.5

Sushil was thinking of a number. Sushil divides by 7, then adds 12 to get an answer of 10. What was the original number?

Answers

Answer:

x=-14

Step-by-step explanation:

think the number is x

According to the question

x/7+12=10

=>x+84=70 (multiply both side by 7)

=>x=70-84

x=-14

What is the result of subtracting the second equation from the first?
-2.1 + y = 0
- 7+ + 3y = 2.

Answers

it 0 i think hope it help

what is a domain in math?

Answers

Answer:

"In mathematics, the domain or set of departure of a function is the set into which all of the input of the function is constrained to fall."

Step-by-step explanation:

there is a certain number. If you add 30 7 to it, then subtract 22 7 from the previous result, and then subtract that difference from 59/7, after that you will get 19 7. What is a certain number?

Answers

Step-by-step explanation:

59 / 7 - ( x + 30 / 7 - 22 / 7 ) = 19 / 7

59 / 7 - ( x + 8 / 7 ) = 19 / 7

59 / 7 - x - 8 / 7 = 19 / 7

- x = 19 / 7 - 59 / 7 + 8 / 7

- x = - 32 / 7

x = 32 / 7

Which expression is equivalent to 9q2-(3q - 7) +5q??
) ?
3

Answers

[tex]9q^2-(3q - 7) +5q= \\\\=9q^2-3q + 7 +5q= \\\\=9q^2+2q + 7[/tex]

Work out the size of x

Answers

Answer:

They are supplementary angles so they add up to make 180°

So you do the reverse

180°-100°=x

80°=x

Step-by-step explanation:

Please give me brainliest

can someone do this for me i don't get it.

Answers

1)
The answer is B, y=4x because the y column is always 4 times the x column

2)
Domain = (1,2)
Range = (5,6,7,8)
Function = there is no function because the x value has multiple y values associated with it

3) No
4) yes
5) Tia is correct because the y values are half of the x values

Can someone teach me how to do this im a good learner i just missed days

Answers

I’m not very good at explaining but if we explain from the beginning the equation is y=m(x)+b and m means the slope while b means y- intercept so all you have to do is substitute these variables with the numbers in the problem basically it would be y=10x+10 also the picture attached is how you graph it. Hope this helped:)

Ricky bought a jacket for $52.00. If the sales tax is 9.5%, how much did he pay in total?

A.$4.94

B.$61.50

C.$49.40

D.$56.94

Answers

Answer:

D. $56.94

Step-by-step explanation:

52 * 0.095 = 4.94

Add $52 + $4.94

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