What is the mean of 4, 6, 8, 20, 12?

Answers

Answer 1
add them all up which is 40 then divide by the amount of numbers there are. in this case 5, so 40 ÷ 5 = 8
Answer 2

Answer:

The correct answer is A. 10

4+6+8+20+12=50

50/5 =10

Step-by-step explanation:


Related Questions

whats the inverse function of f(x)=3x-1

Answers

The inverse function would look like this: f^-1(x) = 1/3 + x/3

What is the gratest common factor of 84 and 108?

Answers

84: 1,2,3,4,6,7,12,14,21,28,42
                                             
108: 1,2,3,4,6,9,12,18,27,36,54,108

Therefore, your G.C.F. is: 12


The greatest common factor of 84 and 108 is 12

What are the x-intercept and y-intercept of the graph of

y=1/3 x−6

x:
Y:

Answers

X: (18,0)
Y: (0,-6)
The y intercept is in the equation

On a map the length of a river is 4.75 in. The actual length is 247mi. What's the scale of the map?

Answers

I have my solution here that might help you solve the problem on your own!

find out how many inches in 1 mile 

multiply this by 247 

divide the answer by 4.75 

the scale is 1:(the answer) 

I hope my guide has come to your help. Have a nice day ahead and may God bless you always!

Which equation shows y=−1/2x+4 in standard form?
A. 2x+y=8
B. x+2y=8
C. x+2y=-8
D. 2x-y=8

Answers

Answer: B. x+2y=8

Explanation:

The original equation is:

[tex]y=-\frac{1}{2}x+4[/tex]

The problem asks us to convert the equation in the standard form, so in the form

[tex]ax+by=c[/tex]

with a,b and c being integers.

In order to do that, first of all let's bring on the same side both x and y:

[tex]y+\frac{1}{2}x=4[/tex]

Now we want the coefficient in front of x to be an integer, so let's multiply each term by 2, and we get

[tex]2y+x=8[/tex]

and this corresponds to option B.

The equation that represents y = -1/2x + 4 in standard form is 2x + y = 8.

The equation that shows y = -1/2x + 4 in standard form is 2x + y = 8.

Learn more about Standard Form of Equations here:

https://brainly.com/question/35418419

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You have been hired as an efficiency expert for Math Nerds Inc. The company wants to cut costs and increase profits by increasing the number of math problems their employees can solve in a day. Your job is to help the Math Nerds employees solve math problems more quickly. Show the Math Nerds employees how to rework each problem below using a polynomial identity. (x2+y2)2=(x2-y2)2+(2xy)2
Show the Math Nerds employees how much time you save on each problem by using the polynomial identity to simplify.
1) ( x+2 ) 2 (x+2) 2 = (x+y) 2 =x 2 +2xy+ y 2
2) ( x−3 ) 3 (x−3) 3 = (x−y) 3 =x 3 −3 x 2 y+3x y 2 − y 3

Answers

so in order to find
(x+2)2
without writing (x+2)(x+2)=x2+2x+2x+4=x2+4x+4 instead say y=2 and use the identity to get
x2+2×2x+2^2=x2+4x+4

The scale factor of the blueprint of a gymnasium to the actual gymnasium is 1in/15ft. The area of the flow on the blueprint is 114in2.
What is the area of the actual gymnasium?

Answers

1/15=144/x
Cross multiply
X=2,160

Gymnasium=2,160 ft2

B) 25, 650 ft^2

If the ratio is 1:15, then the measurements of each side of the actual gym are 15 times greater than the scale's. So the areas would have a ratio of 1:225. 114 times 225 is equal to 25, 650

PLEASE HELP!

The initial amount of people that are sick with the flu is 36 and growing at a rate of 8% every day.

How many people will be sick with the flu in 11 days?


Round to the nearest whole number.

Answers

Answer: 84


Step-by-step explanation:

36 Counts as day 0

Day 1 : 36 x 1.08 = 38.88

Day 2 : 38.88 x 1.08 = 41.9904

Day 3 : 41.9904 x 1.08 = 45.349632

Day 4 : 45.349632 x 1.08 = 48.97760256

Day 5 : 48.97760256 x 1.08 = 52.8958107648

Day 6 : 52.8958107648 x 1.08 = 57.127475625984

Day 7 : 57.127475625984 x 1.08 = 61.69767367606272

Day 8 : 61.69767367606272 x 1.08 = 66.6334875701477376

Day 9 : 66.6334875701477376 x 1.08 = 71.964166575759556608

Day 10 : 71.964166575759556608 x 1.08 = 77.72129990182032113664

Day 11: 77.72129990182032113664 x 1.08 = 83.9390038939659468275712

83.9390038939659468275712 rounded to the nearest whole number is 84.

Based on the number of people who were initially sick and the rate of increase, the number who will be sick in 11 days is 84 people.

To find the number who will be sick in 11 days use the future value formula:

= Initial people x ( 1 +rate) ^ number of days

Solving will give:

= 36 x ( 1 + 8%) ¹¹

= 83.9

= 84 people

In conclusion, 84 people will be sick.

Find out more on future value at https://brainly.com/question/24703884.

Patrick hit his neighbor's car while backing his vehicle out and caused $700 worth of damage. The insurance company paid for $300 of the damage while Patrick had to pay the remaining $400. The amount Patrick paid was his _____.

Answers

Deductible >>>apex answer
Deductible...Apex confirmed!

Find the missing coefficient in the equation of the line that passes through the given point. ...?

Answers

Let me complete your question:

Find the missing coefficient in the equation of the line that passes thru given point. Ax+3y=5, (2-1)?

Is this the question?

 A= 4 

4x+3y=5 

you plug in your points to solve it. 

A(2) + 3(-1) = 5 
2A + -3 = 5 
2A= 8 
A = 4

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Write the point-slope form of the equation of the line that passes through the point (1, 3) and has a slope of 2. Include your work in your final answer

Answers

3-2 / 1-0 = 1/1= 1 
y=x+2 is your answers 

Use trigonometric substitution to write the algebraic expression as a trigonometric function of θ, where 0 < θ <π/2.

√(100) - 4x^(2), x = 5cos(θ)

Answers

√(100) - 4x^(2), x = 5cos(θ),

case 1
perhaps it is √(100)² - 4x^(2), x = 5cos(θ)
because if so, √(100)²=100
√(100)² - 4x^(2) = 100- 100cos²(θ) = 100( 1 - cos²(θ))= 100sin²(θ), and 
0 < θ <π/2.

case2
if it is true that √(100) - 4x^(2), the possible equality is √(100) - 100cos²(θ)

Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle? The triangle is acute because 22 + 52 > 42. The triangle is acute because 2 + 4 > 5. The triangle is not acute because 22 + 42 < 52. The triangle is not acute because 22 < 42 + 52.

Answers

Let

[tex]a=2\ in\\b=4\ in\\c=5\ in[/tex]

we know that

If [tex]c^{2} =a^{2}+b^{2}[/tex] -----> is a right triangle

If [tex]c^{2} > a^{2}+b^{2}[/tex] -----> is an obtuse triangle

If [tex]c^{2} < a^{2}+b^{2}[/tex] -----> is an acute triangle

so

substitute the values

[tex]5^{2} > 2^{2}+4^{2}[/tex] ------> is an obtuse triangle

therefore

the answer is

The triangle is not acute because [tex] 2^{2}+4^{2}< 5^{2}[/tex]

Answer:  The correct option is

(C)  The triangle is not acute because 2² + 4² < 5².

Step-by-step explanation:  We are to select the statement that best explains the type of the triangle having lengths of three sides as 2 inch, 5 inch and 4 inch.

We know that a triangle with side lengths a, b and c (c > a, b)is

(i) an acute-angled if a² + b² > c², and

(ii) an obtuse-angled if a² + b² < c².

For the given triangle,

a = 2 inch, b = 4 inch  and  c = 5 inch.

So, we have

[tex]a^2+b^2=2^2+4^2=4+16=20,\\\\c^2=5^2=25.[/tex]

Since,

[tex]20<25\\\\\Rightarrow a^2+b^2<c^2,[/tex]

so the given triangle is not acute, but obtuse.

Thus, the triangle is not acute because 2² + 4² < 5².

Option (C) is correct.

Polar coordinates of a point are given. Find the rectangular coordinates of the point. (2.1 ; 2pi/9)

A. (-1.6, -1.3)
B. (1.6, 1.3)
C. (1.3, 1.6)
D. (-1.3, -1.6)

Answers

it is b. your answer is B

____ two points are collinear.

A. Any

B. Sometimes

C. No

Answers

B, no all two points are collinear only if they are on the same plane
Any two points are collinear. Definition of collinear points is if you can draw straight line through them they are collinear. For 2 points you can always draw straight line. If there are 3 points than sometimes you can draw straight line but
for 2 answer is Any.

5 1/3 * (-3 9/18) Simplify and Show your work

Answers

5/3*-3*9/18
5*-9/18
-45/18
-2.5

The sum of nine times a number and fifteen is less than or equal to the sum of twenty-four and ten times the number

Answers

(15 + 9x) [tex] \leq [/tex] (24 + 10x)

How many feet are in 30 yards?

__ ft

Answers

1 yard = 3 ft
30 yards = 1 yard multiplied by 30

Thus, 
30 yards = 3 ft multiplied by 30
               = 90 ft

Each month, the census bureau mails survey forms to 250,000 U.S. households asking questions about the people living in the household and about things such as motor vehicles and housing costs. Telephone calls are made to households that don't return the form. In one month, responses were obtained from 240,000 of the households contacted. The population of interest is A.the 240,000 households contacted. B.the 250,000 households contacted. C.only U.S. households with phones. D.all U.S. households.

Answers

Answer: B.the 250,000 households contacted


Because the 240,000 responses are from them. Furthermore, with the given information you do not know how many of those responses came due to the frist contact (by mail) or due to the phone call made to the houses that didn't return the form when received the mail.

At the bank, brent exchanges $50 in bills for 50 one-dollar coins. the total mass of the coins is 405 grams. estimate the mass of 1 one- dollar coins

Answers

If he has 50 evenly weighted coins and combined their total weight is 405g. Then to find the weight per coin we must divide the total weight by the amount of coins.

What is 7.5 as a fraction ?

Answers

75/10 is 7.5 as a fraction
We the .5 in 7.5 is equal to 1/2.

We can put this in a mixed number form: 7 1/2

Which of these terms does not describe polygon A'B'C'D ?

A) rotation
B) image
C) preimage
D) transformation

Answers

Answer:

Hence, Option: C is correct.

The term that does not describe polygon A'B'C'D' is:

Pre-image.

Step-by-step explanation:

Clearly we could observe that the polygon A'B'C'D' is the image that is obtained by the applying some transformation to the polygon ABCD.

The transformation that is applied to ABCD to obtain A'B'C'D' is:

Rotating the figure anticlockwise 90° and then translating it 7 units to the  left and 1 unit downward.

Hence, Polygon A'B'C'D' is not a pre-image.

Since it is an image which is formed or obtained by applying required transformation to the pre-image ABCD.

The correct option is C) preimage. Polygon [tex]\(A'B'C'D'\)[/tex] is the image of the transformation, not the preimage.

To determine which term does not describe polygon [tex]\(A'B'C'D'\)[/tex], we need to understand the definitions of each term in the context of transformations in geometry:

Rotation : This is a type of transformation that turns a figure around a fixed point at a certain angle. Polygon [tex]\(A'B'C'D'\)[/tex] could be a result of rotating polygon [tex]\(ABCD\)[/tex]  

Image : The image is the result of applying a transformation to a figure. [tex]A'B'C'D'\)[/tex] is the image of [tex]\(ABCD\)[/tex] after some transformation.

Preimage : The preimage is the original figure before a transformation is applied. In this context, [tex]\(ABCD\)[/tex] is the preimage, not [tex]\(A'B'C'D'\)[/tex]

Transformation : This is a general term that refers to any operation that moves or changes a figure in some way to produce a new figure. The process that produced [tex]\(A'B'C'D'\)[/tex] from [tex]\(ABCD\)[/tex] is a transformation.

From these definitions, the term that does not describe polygon [tex]\(A'B'C'D'\)[/tex] is preimage.

The distance between two cities is one hundred miles, and a woman drives from one city to the other at a rate of fifty mph. At what rate must she return if the total travel time is three hours and forty minutes?

Answers

well in her first travel (when she goes to the anther city)
v1= 50mph
d1=100 m
t1=?

t=d/v=100/50=2h

that's meat that she will take 2hours during the first travel 

and total travel time = 3h 

she wants to take only 1 h in her second travel 

v2=?
d2=100 m
t2= 1h

v2= d2 *t2 =100mph 


#

well in her first travel (when she goes to the anther city)

v1= 50mph

d1=100 m

t1=?


t=d/v=100/50=2h


that's meat that she will take 2hours during the first travel 


and total travel time = 3h 


she wants to take only 1 h in her second travel 


v2=?

d2=100 m

t2= 1h


v2= d2 *t2 =100mph 

total travel time is 3 hours and 40 minutes so i belive the correct answer is 60mph



Solve the equation for the letter L: A=LW

Answers

A/W=L is the answer.

Answer:

[tex]L=A/W[/tex]

Step-by-step explanation:

we have

[tex]A=LW[/tex]

Solve for L means -------> isolate the variable L

so

Divide by [tex]W[/tex] both sides

[tex]A/W=LW/W[/tex]

Simplify

[tex]L=A/W[/tex]

What is the period of y = 5 cos x?

What is the period of y= cos 5x

Answers

Period of cos(Bx) is 2pi/B

first case, B = 1

Second case, B = 2

so period of 5*cos x is 2pi/1 = 2pi

period of cos 5x is 2pi/5

hope this help

Suppose that we have a system consisting of two interconnected tanks, each containing a brine solution. Tank A contains
x(t) pounds of salt in 200 gallons of brine, and tank B contains
y(t) pounds of salt in 300 gallons of brine. The mixture in each tank is kept uniform by constant stirring. When t = 0, brine is pumped from tank A to tank B at 20 gallons/minute and from tank B to tank A at 20 gallons/minute. Find the amount of salt in each tank at time t if x(0) = 10 and y(0) = 40.

Answers

First notice that neither tank will change in total gallons at any time.
The pump is just mixing the water among the 2 tanks continuously. So eventually the concentration in each tank will be the same as concentration of both tanks put together.
Total gallons = 500,  Total Salt = 50
Concentration = 50/500 = 1/10
If tank A has this concentration , then salt = 20
For tank B the salt amount is then 30.
This gives us 2 points, an initial amount and a finishing amount as t -> infinity.

To find functions for x(t) and y(t) , we need to look at the rate of change.
[tex]Rate = R_{in} - R_{out} [/tex]
For tank A, 20/300 or 1/15 of tank B salt is coming in. While 20/200 or 1/10 of its own salt is leaving.
For tank B its just the other way around.
This will give a system of 2 differential equations:
[tex]\frac{dx}{dt} = \frac{y}{15} - \frac{x}{10}[/tex]
[tex]\frac{dy}{dt} = \frac{x}{10} - \frac{y}{15}[/tex]
From this we can say:
[tex]\frac{dy}{dt} = -\frac{dx}{dt}[/tex]
[tex]y = -x+C[/tex]
Plug this in for y in the dx/dt equation: 
[tex]\frac{dx}{dt} = \frac{-x+C}{15} -\frac{x}{10} = -\frac{x+C}{6} [/tex]
Solving this differential equation gives:
[tex] \int \frac{dx}{x+C} = \int -\frac{dt}{6} [/tex]
[tex]\ln (x+C) = -\frac{t}{6} +k[/tex]
[tex]x = k e^{-t/6} +C[/tex]
The dy/dt equation is solved exactly the same way, so you have:
[tex]y = k e^{-t/6} +C[/tex]
All thats left is to apply initial and final conditions to get constants.
The final solution is:
[tex]x(t) = -10e^{-t/6}+20[/tex]
[tex]y(t) = 10e^{-t/6}+30[/tex]

What is 1.2 divided by 9?

Answers

0.13...The 3 repeats forever
.13 repeating three is your answer

Jake earns $7.50 per hour working at a local car wash. The function, ƒ(x) = 7.50x, relates the amount Jake earns to the number of hours he works. Write the inverse of this relation

Answers

The function is: f ( x ) = 7.50 x,
where x is the number of hours that Jake works.
f ( x ) = y
y = 7.50 x
x = y / 7.50
Answer:
The inverse is:
y = x / 7.50

For this case we have the following function:

[tex] f(x) = 7.50x
[/tex]

An equivalent way to write this function is:

[tex] y = 7.50x
[/tex]

From here, we clear the value of x.

We have then:

[tex] x = \frac{y}{7.50}
[/tex]

Returning the variables we have that the inverse of the function is:

[tex] f (x) ^ - 1 =\frac{x}{7.50}
[/tex]

Answer:

the inverse of this relation is:

[tex] f (x) ^ - 1 =\frac{x}{7.50}
[/tex]

q plus 12 minus 2=????

Answers

Answer is: Q+12-2 = q+10

What is the length of a picture frame whose width is 3 inches and whose proportions are the same as a 9-inch wide by 15-inch long picture frame?

Answers

9 : 15
Proportion is 3:5
So if width is 3 then the length shud be 5 
5 inches 
the length would be 5 inches

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Why did the following change occur ? The snow that covered the ground all winter began to melt,temperature rose, and flowers started to bloom.a) days became shorter b) earth's tilt on its axis shifted. c) the sun's rays became more concentrated d) Earth completed one revolution 28 pounds minus 6 pounds and 3 ounces how many 2 x 5 tiles is needed for a floor that is 30 x 6 Choose the compound inequality that can be used to solve the original inequality |3x 5| > 10. write a quadratic function in standard form with zeros 6 and -8 Which of the following was part of Woodrow Wilsons Fourteen Points? All nations should enjoy self-determination.The best path to world peace is a strong military.The nations of the Western Hemisphere should stay out of European affairs.Colonies should be governed with the good of the colonized people in mind. which event started the Pequot war bonnie has just received an order for a square frame that has 102 tiles along each side.how many tikes will she need to make this frame? Explain how you got your awnswer What is one way the judicial branch checks the power of the executive branch? A. Supreme Court justices must be approved by congressB. The Supreme Court can veto legislation C. Supreme Court justices are appointed for lifeD. The Supreme Court can rule executive orders unconstitutional If you mapped the spread of Renaissance culture, which urban centers would appear in the region shaded as the origin of the Renaissance? 2 choices. A. BrusselsB. FlorenceC. LondonD. MilanE. Paris Which is a greater measurement one mile or one kilometer The percentage of the Hispanic people living in the U.S. is_____.5%30%15%40% Which sentence correctly uses commas to separate coordinate adjectives?The long winding, corridor is illuminated with oblong skylights.The long, winding, corridor is illuminated with oblong skylights.The long, winding corridor is illuminated with oblong skylights.The long winding corridor is illuminated with oblong, skylights. Which character from Greek mythology had a long and wandering journey? The suffixes -ed, -ee, -ing, and -ment can be added to the end of the word commit.For which of the following do you not need to double the final consonant before adding the suffix?commit + -edcommit + -eecommit + -ingcommit + -ment Which kind of play is Shakespeare's Julius Caesar sometimes described as? A.a satire B.a melodrama C.a passion play D.a history Read the following sentences from the high school step team"I really appreciate your concern but Ive got to say no thanks for now Karla says to jade Im going for afterschool help in math*Determined*disappointed*grateful*resolved Which feature of Timbuktu helped make it a center of intellectual advances and culture?the librarythe mosquethe museumthe university a team has won 60 percent of the 20 games it has playes so far this season. If the team plays a total of 50 games all season and wins 80 percent of the remaining games, then the percent of games it won for the entire season will be1. 66%2. 69%3. 70%4. 72%5. 74% ...? In about 5 billion years, at the end of its lifetime, our sun will end up as a white dwarf, having about the same mass as it does now, but reduced to about 15,000 km in diameter.What will be its density at that stage? ...?