Calculate the mean for the following data set:
Data Set = 2, 9, 10, 4, 8, 4, 12

Answers

Answer 1

Answer:

7

Step-by-step explanation:

Mean, also referred to as average, is evaluated by dividing the sum of the data by the amount of data.

2+9+10+4+8+4+12 = 49

Dividing 49 by the amount of data, 7

49/7 = 7

Answer 2

Answer:

7

Step-by-step explanation:

add all 2, 4, 4, 8, 9, 10, 12

divide some by number of data set 7


Related Questions

The school orchestra sells carnations on Valentine's Day for $2 each. They buy the carnations that they sell from a local florist for $0.50 each plus a one-time $18 delivery charge. Write a system of equations that describes this situation and solve it using your preferred method.​

Answers

Answer:

2x - (0.50x + 18) = profit

Step-by-step explanation:

x = number of carnations, for example if 3 carnations were sold, $6 from sales - (1.50 + 18) = profit. The 50 cents from each carnation that they bought to sell, plus 18 delviery fee. Hope this helped! Good luck!

Khloe is measuring yarn to make jewelry for her birthday party. She needs 4 feet of yarn for necklaces.How many inches of yarn does Khloe need?

Answers

Answer:

JUST MULTIPLY 4x12=.... and youll find the answer

Step-by-step explanation:

4yarn x 12 inches= 48ft

What is the lower Quartile (Q1) for this data set?

Answers

Answer:

d adm d

Step-by-step explanation:

mnmnmnmncmmxmxmxmnxmnmmncxmcx

Can someone please help

Answers

Answer:

D

Step-by-step explanation:

You need to dialate the shape by 2 centered in the origin and it rotates 180 degrees.

PLEASE HELP! :(

Suppose that c varies directly with n, and n=8 when c=13. Find n when c=4.

Answers

as c and n directly vary it can be said that

[tex]\frac{8}{13} = \frac{n}{4}[/tex]

now we just solve for n

[tex]\frac{8}{13}=\frac{n}{c} \\13n=32\\n=2.46[/tex]

i need help pls respond

Answers

Answer:

The second one

Step-by-step explanation:

This is because it is asking for a budget meaning that you have to spend less or equal to 200

Answer: m ≤ 200

Step-by-step explanation:

You can't spend MORE THAN 200 dollars in cash$200 must be the most you can spend$200 will always be more than m or m will always be less than $200

Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.

Answers

Answer:

a, d, e

Step-by-step explanation:

#1  Multiply the two polynomials.

[tex](2x+3)(5x^2+3x+2)=(2x)(5x^2)+(2x)(3x)+(2x)(2)+(3)(5x^2)+(3)(3x)+(3)(2)\\=10x^3+6x^2+4x+15x^2+9x+6\\=10x^3+21x^2+13x+6[/tex]

#2

[tex](3y+4)(2y^2+5y-3)=(3y)(2y^2)+(3y)(5y)-(3y)(3)+(4)(2y^2)+(4)(5y)-(4)(3)\\=6y^3+15y^2-9y+8y^2+20y-12\\=6y^3+23y^2+11y-12[/tex]

Si tengo 10 vacas y solo tengo 9 corrales entonces ¿Cómo colocar las 10 vacas dentro de los 9 corrales?

Answers

Answer:

Step-by-step explanation:

Este es muy fácil, simplemente dibujas los nueve corrales y pones diez vacas en entre. ¿¿Como??

Por ejemplo, tú tienes algo como esto

D

I

E

Z

V

A

C

A

S

Donde, cada letra es la vacas tú tienes, y pones en el corral. Esta camina, tienes poner diez vacas en entre nueve corrales. Espero que me entiendas. Gracias

Brainliest and 1 graph helppp :)

Answers

Answer: it’s C

Step-by-step explanation:

yo i need help with this question please and thank u i need the correct answer to please i will give u a brainliest as well

Answers

V = πr ^2 h
V = π (3)^2 (5)
V = π (9) (5)
V = π 45
V = 141.3 in
141.3 divided by 8 = 17.7

How many days are in an hour?

Answers

Answer:

0.0416667

Step-by-step explanation:

17 more than twice Chrissy's height

Answers

The required expression is 2h+17 where h is the height of Chrissy.

What are expressions?

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between.

Given is a statement, 17 more than twice Chrissy's height, we are asked to convert this statement into an expression,

Let Chrissy's height be h,

Then,

2h+17

Hence, the required expression is 2h+17 where h is the height of Chrissy.

Learn more about expressions, click;

https://brainly.com/question/14083225

#SPJ1

help me please can someone explain

Answers

Answer:

Step-by-step explanation:

7x+4^3+5  just answer that ans that will givin u your answer

HELP MEEEEE I REALLY NEED HELP

Answers

Answer:

they are vertical angles

Step-by-step explanation:

they are vertical angles.

In right triangle ABC, m∠ B ≠ m∠ C. Let sin B = r and cos B = s.
What is sin C – cos C?

Answers

Answer:

c

Step-by-step explanation:

Help me with this!!!!

Answers

Answer:

5 units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1 )^2 }[/tex]

with (x₁, y₁ ) = (6, 4) and (x₂, y₂ ) = (3, 8)

d = [tex]\sqrt{(3-6)^2+(8-4)^2}[/tex]

   = [tex]\sqrt{(-3)^2+4^2}[/tex]

   = [tex]\sqrt{9+16}[/tex]

    = [tex]\sqrt{25}[/tex]

    = 5

Answer:

5

Step-by-step explanation:

Kate walks 5 miles in 2 hours at a steady pace. How far can she walk in 1 hour and 15 minutes? Explain your reasoning.

Answers

Answer:

3.125

Step-by-step explanation:

Kate walks 5 miles in 2 hours (120 minutes)

The distance she can works in 1 hour 15 minutes can be calculated as follows

This can be calculated using proportion

d/75= 5/120

Cross multiply

d×120= 75×5

120d= 375

d= 375/120

= 3.125

Which number makes the number sentence true?
0.64 < ____
A. 0.6
B. 0.7
C. 0.63
D. 0.07

Answers

Answer:

The correct answer is letter B, 0.7

Step-by-step explanation:

Hope this help

Math helppp plzzzz 20 points helppp plzzzzz no links or imma report u

Answers

It would be c that is because c is 45 mph while b would be 195/3=65 and a 150/3=50 so the fastest rankings would be b, a, c and the slowest rankings would be c, a, b

Kathy was building a bed for her dollhouse she used her bed

Answers

Answer:

She used her bed for her dollhouse

Step-by-step explanation:

A restaurant wants to study how well its salads sell. The circle graph shows the sales over the past few days. If 5 of the salads sold were Caesar salads, how many total salads did the restaurant sell?​

Answers

Answer:

20

Step-by-step explanation:

Pls help I keep asking and nobody’s helping me

Answers

Answer: 268

Step-by-step explanation: substitute pi with 3.14, & then 4^3 as 64 in the second line. after, you multiply 3.14 x 64 you get 201 after you round. finally multiply 4 x 201 then divide your answer by 3. you get 268. (no one helped so i did)

4. The product of 32 and n is equal to 59.13.

Answers

Answer:

pretty sure it is 1.8478125

Step-by-step explanation:

Please help help me please ASAP I am begging someone please
No links or files

Answers

Answer:

1. b

2. e

3. a

4. f

5. g

Step-by-step explanation:

hope this helps

What are the next three terms in the sequence 11, 18, 25, 32, ...? 39, 46, 53 43, 50, 57 37, 44, 51 41, 48, 55

Answers

Answer:

39...........

Step-by-step explanation:

plz mark me as brainest answer

Answer:

39

Step-by-step explanation:

the sequence increases by seven every time so 32+7 =39

The diameter of the circle is 9 feet. What is the circumference of the Circle?​

Answers

Answer:

(ABOUT) 28.27433

Step-by-step explanation:

C = 2πr or dπ (because 2*r = d)

For this case:

C = dπ

C = 9π

C = 28.27433

You can round if you want to (like 28.3 or 29.27).

a plane departs an airport and mistakenly travels due west at 500mph for 30 minutes. the pilot realizes that the correct destination (airport b) was actually 600 miles away at a bearing of 60 degrees west from airport a. how far is the airplane from its original destination now?

Answers

Answer:

403 miles

Step-by-step explanation:

500 mph is 500 miles per hour

30 minuites is half an hour, so that is 250 miles west

60 degrees west, 600 miles away

so it is a triagle of 30 60 and 90.

600 is the hypotenuse of the 30 60 90 triangle

we need to find the height of the 30 60 90 triangle

using the special rule, the height is 300

the length of the 30 60 90 triangle is 300rt3

so 300rt3 - 250  is the length of another triangle.

height is still 300

hypotenuse is the distance of the actual area minus the plane's current position

(300^2 + (300rt3-250)^2)^1/2 is about 403.351433

I don't get it please help it's for math ASAP please help

Answers

X>6 it makes me type longer but yea hope it helps

Find all exact solutions
2cos^2x=sinx+1
Please show work thank you!

Answers

Answer:

[tex]\displaystyle x=\left\{\frac{\pi}{6}+2n\pi, \frac{5\pi}{6}+2n\pi, \frac{3\pi}{2}+2n\pi\right\}, n\in\mathbb{Z}[/tex]

Step-by-step explanation:

We are given the equation:

[tex]2\cos^2(x)=\sin(x)+1[/tex]

And we want to find all solutions for x.

First, we should put the equation into terms of only one trigonometric ratio.

Since we are given cos²(x), we can turn this into sine. Recall the Pythagorean Identity which states:

[tex]\sin^2(x)+\cos^2(x)=1[/tex]

Therefore:

[tex]\cos^2(x)=1-\sin^2(x)[/tex]

By substitution:

[tex]2(1-\sin^2(x))=\sin(x)+1[/tex]

Distribute:

[tex]2-2\sin^2(x)=\sin(x)+1[/tex]

Isolate the equation:

[tex]2\sin^2(x)+\sin(x)-1=0[/tex]

We can factor:

[tex](2\sin(x)-1)(\sin(x)+1)=0[/tex]

Zero Product Property:

[tex]2\sin(x)-1=0\text{ or } \sin(x)+1=0[/tex]

Solve for each case:

[tex]\displaystyle \sin(x)=\frac{1}{2}\text{ or } \sin(x)=-1[/tex]

We can use the unit circle.

sin(x) = 1/2 for every π/6 and 5π/6. So, it will continue every 2π.

sin(x) = -1 every 3π/2. And this will also continue every 2π.

Hence, our solutions are:

[tex]\displaystyle x=\left\{\frac{\pi}{6}+2n\pi, \frac{5\pi}{6}+2n\pi, \frac{3\pi}{2}+2n\pi\right\}, n\in\mathbb{Z}[/tex]

Note:

If you only need the solutions within the interval [0, 2π), then it is:

[tex]\displaystyle x=\left\{\frac{\pi}{6}, \frac{5\pi}{6}, \frac{3\pi}{2}\right\}[/tex]

The table shows the distances and times that two dogs Which statements are true about the data shown in th table? Check all that apply. ran. O Fido ran faster than Ruff. O Ruff ran faster than Fido. Dog Distance (feet) Time (seconds) O The dogs ran at the same speed. O Fido's speed was 3 feet per second O Ruff's speed was 4 feet per second. Fido 54 18 Ruff 64 16​

Answers

Answer:

what!!!!!????

Step-by-step explanation:

I don't understand what are we supposed to do

Answer:

B, D, and E

Step-by-step explanation:

I just had the same question

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