if x is a binomial random variable with n=10 and p=0.8, the mean value of x is _____.

Answers

Answer 1

Answer:

8

Step-by-step explanation:

[tex]\bar{x}=np=10(0.8)=8[/tex]


Related Questions

An example of a dangerous passing situation is: When the oncoming car is close and you have a long line of traffic ahead of you When you can't see clearly ahead and the maneuver may not be completed in time All options When road and traffic conditions make driving tricky

Answers

Anytime one makes a traffic manoeuvre, such as changing lanes or passing another vehicle, a person put both himself and other drivers on the road in danger.

What are the methods for passing risky situations?

Avoid driving at intersections with railroads, railroad crossings, and entrances to shopping centres.

Only pass to the left if there are two lanes on the road. It is frequently illegal and dangerous to pass on the right. Only when the car in front of you flashes its left turn signal is there an exemption.

When there is a long line of traffic and an oncoming car is right ahead, it is advisable to wait until the incoming vehicle has passed before making a passing motion.

Therefore, it is best to wait until one can see fully ahead because there might be an approaching car right around the bend.

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DIG DEEPER! A cube is removed from a rectangular prism. Find the surface area of the figure after removing the cube.


A rectangular prism with length 9 feet, width 8 feet, and height 5 feet. A cubic hollow runs to the height of the rectangular prism and has the side length of 5 feet.


The surface area is ______ square feet

Answers

The surface area of the figure after a cubic hollow runs to the height of the rectangular prism is 364 square feet.

The surface area is 364 square feet.

Find the surface area of the rectangular prism.

To do this, use the formula for the surface area of a rectangular prism:

(2 x length x width) + (2 x width x height) + (2 x length x height)

In this case, the length is 9 feet, the width is 8 feet, and the height is 5 feet. Plugging these values into the formula gives:

= (2 × 9 × 5) + (2 × 8 × 5) + (2 × 9 × 8)

= 314 square feet

When a cubic hollow runs to the height of the rectangular prism and has the side length of 5 feet, 2 cubic faces is removed and 4 cubic faces added to the surface area of the resultant solid. So

surface area = 314 - 2×5² + 4×5²

= 314 + 2×5²

= 314 + 50

= 364 square feet

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What is an example of horizontal symmetry?

Answers

The examples of horizontal symmetry is B, C, H, E.

The term horizontal symmetry is defined as is a line about which the object is symmetric.

Here we know that the symmetry line or horizontal axis of a shape which divides the shape into two identical halves is known as horizontal line of symmetry.

Which defines that  the axis here crosses across the shape to cut it into two equal parts.

Therefore, the English alphabets such as B, C, H, E, are the examples of horizontal symmetry.

In this case, here we have a horizontal line passing through the middle of the image and when the image is folded along this line, then we get the two halves overlapping and coinciding perfectly.

Therefore, this one is also an example for this could be a square or a rectangle or any other object that is symmetric horizontally.

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The solution process is shown for an equation. Justify each step in the process with the appropriate property. Select the correct answer from each drop-down menu. 2 ⁢ ( 3 ⁢ y + 4 ) − 3 ⁢ ( y − 2 ) = 2 ⁢ y original equation 6 ⁢ y + 8 − 3 ⁢ y + 6 = 2 ⁢ y 3 ⁢ y + 14 = 2 ⁢ y combining like terms 14 = - y - 14 = y y = - 14

Answers

All the steps of the solution are written above. Then all the options are correct. And the solution is - 14.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The equation is given below.

2(3y + 4) − 3 (y − 2) = 2⁢y

Simplify the equation, then we have

2(3y + 4) − 3 (y − 2) = 2⁢y

6y + 8 − 3y + 6 = 2y

3y + 14 = 2y

14 = 2y - 3y

14 = - y

y = - 14

All the steps of the solution are written above. Then all the options are correct. And the solution is - 14.

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Create the quadratic function that contains the points (0,2), (1,0), and (3,10). Show all of your work for full credit.

Answers

Answer:

y=7/3x²-13/3x+2

Step-by-step explanation:

Determine the value of c:

y=ax²+bx+c

2=a(0)²+b(0)+c

2=c

Substitute (1,0) into the quadratic and create an equation with a and b:

y=ax²+bx+2

0=a(1)²+b(1)+2

0=a+b+2

-2=a+b

Do the same with (3,10) to get a second equation:

y=ax²+bx+2

10=a(3)²+b(3)+2

10=9a+3b+2

8=9a+3b

Set the two equations equal to each other and solve for a and b:

-2=a+b

8=9a+3b

Multiply first equation by 3 and eliminate b to find a:

 -6=3a+3b

- (8=9a+3b)

_______

-14=-6a

14/6=a

7/3=a

Substitute 7/3=a into the first equation:

-2=7/3+b

-2-(7/3)=b

-13/3=b

Final equation:

y=7/3x²-13/3x+2

See the graph for a visual representation

(1) 6:45 p.M. - ______ (2) 17:15 H - ______ (3) 1:25 a.M. - ______ (4) 4:15 p.M. - ______ (5) 00:15 H - ______

Answers

Answer:

(1) 6:45 p.M. - ______18: 45H

(2) 17:15 H - ______ 5: 15 pm

(3) 1:25 a.M. - ______  1:25 Hours

(4) 4:15 p.M. - ______  16: 15H

(5) 00:15 H - ______ 12:15 am .

Step-by-step explanation:

(1) 6:45 p.M. - ______18: 45H

This is ( 6:45 + 12) 18 hours and 45 minutes from the beginning of day .

So the 24 hour time is 18: 45H

(2) 17:15 H - ______

This is 17 hours and 15 minutes from the beginning of day.

Taking 12 hours from the morning gives 5 hours since midday. So it will be in the evening i.e 5: 15 pm

(3) 1:25 a.M. - ______

This is 1 hours and 25 minutes from the beginning of day.

So it will be in the  ( 00:00+ 1:25) 1:25 Hours in the 24 hour clock.

(4) 4:15 p.M. - ______

This is ( 4:15 + 12) 16 hours and 15 minutes from the beginning of day .

So the 24 hour time is 16: 15H

(5) 00:15 H - ______

This is only 15 minutes from the beginning of day.

So it will be in the  ( 12:00+ 0:15) 12:15 am .

Anjali spent half her weekly allowance at the movies. To earn more money her parents let her clean the gutters for $5. What is her weekly allowance of she ended with $12? (do NOT use $ in your answer. Numbers only)

Answers

Answer:

14 dollars

Step-by-step explanation:

Anjali had 12 dollars after recieving the 5. So in order to find out how much she had before cleaning the gutters, we substract those 5 dollars from the 12. That leaves us with 7 dollars. This is the amount of money she had after spending half at the movies, and before cleaning the gutters. Which mean's it's half of her allowance. 7 x 2 is 14, which is your answer! :)

Pop is on sale at Save-U-Lots. Which pack has the lowest cost per unit?


A. 6- pack for $2. 49


B. 12-pack for $3. 99


C. 24-pack for $5. 49

Answers

In the case of a 24-pack for $5. 49, the cost of the unit is the lowest.

The cost per item is nothing to the amount of money invested in buying one item.

As we have 3 different scenarios:

Case A. 6- pack for $2. 49

As here. cost of 6 packs is $2.49, so for determining the cost of one pack we will divide $2.49 by 6.

So, the cost of 1 pack will be = 2.49/6 = 0.415 $/pack

B. 12-pack for $3. 99

As here. cost of 12 packs is $3.99, so for determining the cost of one pack we will divide $3.99 by 12.

So, the cost of 1 pack will be = 3.99/12 = 0.3325 $/pack

C. 24-pack for $5. 49

As here. cost of 24 packs is $4.49, so for determining the cost of one pack we will divide $5.49 by 24.

So, the cost of 1 pack will be = 5.49/6 = 0.22875 $/pack

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please only 2 minutes. this is late now and i need it done NOW. no files i’m so stressed rn

Answers

In great east japan a tsunami happened

what’s the volume????

Answers

Answer:

The volume of the cone is 1526.04 km cubed

Step-by-step explanation:

The equation for a right cone is πr^2 multiplied by h/3. The r equals radius and the h equals 18. So, we get the equation π(9)^2 multiplied by 18/3. When put into a calculator, you get 1526.04. (Remember to use 3.12 NOT π.)

Which expression can be used to find AC

Answers

Answer:

7.8cos23 feet

Step-by-step explanation:

Which expression can be used to find AC

From the given diagram;

Hypotenuse = AB = 7.8ft

Adjacent to <A = AC

Using the SOH CAH TOA identity;

cos theta = adjacent/hypotenuse

cos 23 = AC/AB

cos 23 = AC/7.8

AC = 7.8cos23

AC = 7.8(0.9205)

Hence the measure of AC is 7.8cos23 feet

HELP FAST !!!
“Find the volume of the triangular prism below”

Answers

Answer:

1,848 m3

Step-by-step explanation:

above answer is right

Find the x value of x. If necessary round to the nearest tenth. A=49sq.in.

Answers

Answer:

Step-by-step explanation:

Alright, lets get started.

Area is given as 49 square inches.

The formula for area A =  

base is given as x

Height is given as x

Hence area is A

A =  

Multiplying 2 in both sides

Taking square root on both sides

hence the answer is x = 9.9 in   :  Answer

Hope it will help :)

The marked price of a computer is Rs. 60000. If allowing a% discount on the marked price and adding a% VAT, the price of the computer will be Rs. 58986. Find the rate of VAT.​

Answers

The problem can be solved using algebra. Let's say the discount rate is x, then the price after discount is:

60000 (1 - x/100)

The price after VAT is:

60000 (1 - x/100) (1 + y/100) = 58986

Where y is the rate of VAT.

Rearranging the equation we get:

(1 - x/100) (1 + y/100) = 58986/60000

Multiply both sides by 100 to get rid of the fractions:

100 (1 - x/100) (1 + y/100) = 981

Expanding and grouping like terms, we get:

100 - x + 100y - xy = 981

We can see that x is in two terms, so we can move one side of the equation and get:

100 - x + 100y = 981 + x

x = (981 + x - 100 + 100y)/100 = (981 + xy - 100y)/100

Now we have x in only one term and we know the value of x is 10%, so we can substitute it:

10 + 10y = 9.81

Solving for y we can find that y = 0.81 or 81%

So the VAT rate is 81%

1. Indicate whether the value of each expression is positive or negative.
-3(-6)
(-3)(6)
-(-3)(6)
2(3)(-6)
-2(-3)(-6)
2(-3)(-6)

Answers

So we know that if you multiply a negative number by a positive number, you get a negative number. We also know that if you multiply a negative number by a negative number you get a positive number! (Two negatives cancel each other out!)

So going down the list:

(-3)(-6) = positive (two negatives!)

(-3)(6) = negative (one negative, one positive!)

-(-3)(6) = positive (this is because you multiple left to right. because the negative is technically a -1 multiplying the -3, your -3 turns into a +3!)

(2)(3)(-6) = negative

(-2)(-3)(-6) = negative (remember, you multiply in the order of left to right! So multiplying the -2 and -3 gives you a positive. However, the -6 makes that positive number negative!)

(2)(-3)(-6) = positive

I hope this helps!

Steve wanted to build a small racetrack for his remote-control car in his back yard. He used makeshift equipment to make a perfect circle for his racetrack. The circle had a radius of 32 feet. If a car takes 3 complete turns around the racetrack, approximately, how many feet did the car travel?

Answers

Answer:

602.88 feet

Step-by-step explanation:

Number of turns = distance travelled / circumference of  the circle

The circumference of a circle can be described as the linear distance round the circle

The circumference of a circle = 2πr or πD

π = 3.14

r = radius

d = diameter

the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.

2 x 3.14 x 32 = 200.96

feet traveled - 200.96 x 3 = 602.88 feet

Write the coordinates of the vertices after a translation 1 unit down.

Answers

Answer:

M(4,0)

K(0,5)

L(6,5)

go down one

PLEASE JUST HELP ME ( LINKS= REPORT)

Answers

Answer:

hexagonal based pyramid

E

7 faces

12 edges

7 vertex

13

15

Hope it helps :)

Simplify the following: (3 + 10i) - (-9 - 4i)

*PLEASE INCLUDE EXPLANATION

Answers

Answer:

12+14i

Step-by-step explanation:

For -(-9-4i), you need to clean up the parentheses so you would distribute. -1 times -9 and -1 times -4i.

You will get 9+4i

Now you have 3+10i+9+4i. You will now add like terms. 10i+4i= 14i. 9+3= 12.

12+14i

brainliest pls

please no links or anything except the correct answer, please!

Answers

Answer:

cosS is 33/65

Step-by-step explanation:

please help!!!

This is no confusing please help meeeeh.

Answers

Answer:

The squares would be 2

First one would be 2 × 2 × 2 = 8

The triangles would be 3

Second one would be 2 × 3 × 3 × 3 = 54

Circles would be 1

Third one would be 2 × 3 × 1 × 1 = 6

So that means the last one would be 1 × 2 × 3 = 6

Hope it all made sense and helped :)

The average price for houses in the area is $280,000, and the standard deviation is $12,000. What is
the price of a house whose z score is 2.5?

Answers

When working with a normal distribution, you can use the z-score to determine how many standard deviations away from the mean a certain data point is.

Given that the average price for houses in the area is $280,000 and the standard deviation is $12,000, we can use the z-score formula to find the price of a house whose z-score is 2.5:

z = (x - mu) / sigma

where x is the price of the house, mu is the mean price of houses in the area, and sigma is the standard deviation of the price of houses in the area.

In this case, we are looking for the value of x, which is the price of a house whose z-score is 2.5, so we can rearrange the formula to solve for x:

x = (z * sigma) + mu

x = (2.5 * $12,000) + $280,000

x = $350,000

So the price of a house whose z-score is 2.5 is $350,000

It's worth noting that the value of Z-Score 2.5 is considered an outlier, it is usually very rare to find houses that far from the average and standard deviation.

What is an inverse proportional graph?

Answers

Inversely proportional graphs are reciprocal graphs consisting of one smooth curve in the first quadrant only.

When one quantity grows, the other quantity decreases, and vice versa, this is known as an inverse proportion. Indirect proportion is another name for inverse proportion.

Consider a task like painting a fence as an illustration. The amount of time it takes to complete the task lowers as the number of employees rises. The amount of time it takes to complete the task grows as the number of workers reduces.

If y  is inversely proportional to x then we write y = 1/x

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Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 18 feet and a height of 19 feet. Container B has a diameter of 20 feet and a height of 17 feet. Container A is full of water and the water is pumped into Container B until Container A is empty.

After the pumping is complete, what is the volume of water in Container B, to the nearest tenth of a cubic foot?

Answers

Answer:

4834.91 cubic ft.

Step-by-step explanation:

The volume of a right-cylinder is

[tex]\pi{r}^{2} h[/tex]

we are only concerned with the total amount of water from A.

plug in the respective radius (half the diameter) and height for A into our formula above and solve.

I WILL MARK BRAINLYIST


Describe a meal that you could put together that provides 4 servings of both a main

course and a side dish. Explain how you know that it will not exceed the weight limit of the box

Answers

A meal that you could put together that provides 4 servings of both a main

course and a side dish and not exceeding the weight limit is 4 servings of

chicken and 4 servings of baked beans.

What are the types of representing data?

Data refers to the elements that make up persons, things, events, and ideas. It could be an integer, a title, or anycast. Data must be tabulated after collection in order to study their prominent characteristics. The presentation of data is the name given to such a configuration.

Bar Chart, Histogram, Line Graph, Pie Chart, Frequency Distribution Table.

Given, Each box can hold a maximum of 44 ounces.

By observing the given table we see 4 servings of chicken would weight

2×12.6 oz = 25.2 oz.

And 4 serves of baked beans weigh 14.2 oz.

Therefore, The total serving would weigh (25.2 + 14.2) oz.

= 39.4 oz.

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12 holes in 6 minutes. If the machine drills holes at a constant speed, it can drill ______ holes in 25 minutes.

Answers

Step-by-step explanation:

12 holes / 6 minutes = 2 holes / 1 minute

the simplified ratio is 2/1 = 2.

so, for 25 minutes we need to keep the same ratio :

x holes / 25 minutes = x/25 = 2

x = 2×25 = 50

it drills 50 holes in 25 minutes.

8th grade math, Pls help, will mark Brainliest

Answers

Answer:this is confusing

Step-by-step explanation:

plzzzzzzzzzzzzzzzzzzzzzzz help I will give 10 points and mark brainlest

Answers

Answer:

5^6

Step-by-step explanation:

the answer is 5^6. you calculate the product and then simplify the expression.

Identify all of the necessary assumptions for a significance test for comparing dependent means.
>Categorical Data
>At least 15 successes and 15 failures in both groups
>Quantitative Data
>Random Samples or Random application of treatments
>n is greater than or equal to 30 OR Population of Differences could be Normally distributed.
>Both sample sizes are greater than 30 or Both population distributions could be Normally Distributed

Answers

The correct answer will be:

Quantitative data, both sample sizes are greater than 30 or Both population distributions could be Normally Distributed, Random Samples or Random application of treatments

There should be just one group for each subject. The observations in each category are unrelated to one another. There were no notable outliers in any category.

The following are the presumptions for a percentage significance test: Data come from a random sample [Sample is large enough, which is presumed to be true when. It should be noted that both quantitative and categorical data can be subjected to a significance test for a proportion.

Most parametric tests begin with the underlying presumption of population distribution. The ratio scale or interval scale measurements, easy random extraction, normal distribution of the data, a sufficient sample size, and homogeneity of variance are all prerequisites for performing the t-test.

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Optimization A cone is made from a circular sheet of radium R by cutting out a sector and gluing the cut edges. What is the maximum volume of the cone

Answers

The cone should have its maximum volume. V=1/*3r2h is the formula for calculating the volume V of a cone with height h and radius r.

How do you find the maximum volume of a cone?

The cone has a volume of

V=πr2h/3

Therefore, we must calculate the values of r and h in terms of R. R is the diameter of the cone's top-circular circle, and h is the cone's height.

R is the cone's slant height, and it serves as the hypotenuse of a right triangle.

R2 = h2 + r2, or r2 = R2-h2.

So V = (1/3)π

[R2-h2]

h = (π/3)[R2h-h3]

You must take the derivative of the cone's volume, set it to zero, then solve for h to determine the cone's maximum volume.

dV/dh=(π/3)[R2-3h2]

R2-3h2=0 --> h2=R2/3 -> h = R/√3

Now we can determine r:

r2=R2-R2/3 = (2/3)R2

The volume formula with r and h substituted:

V = (π/3)

r2h = (π/3)(2R2/3)

(R/√3)

V(R)=2πR3/(9√3)

The complete question is:

A cone-shaped drinking cup is made from a circular piece of paper of radius R by cutting out a sector and joining the edges CA and CB. Find the maximum capacity of such a cup (Your answer may depend on R).

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Other Questions
Practice with body paragraphsBelow are two quotations about learning, pretend you are writing a paper proving that everyone learns differently. The thesis that the paper is proving is - Assignments offered to be completed in different ways create more success for students.Integrate these two quotations into your own thoughts for some practice with writing a body paragraph.1. Albert Einstein said in 1933, I never could finish an assignment just like the teacher wanted me to.2. Dr. Flores said in 2002, We tried different ways of completing assignments and, over a three-year period, we saw our students succeed in almost every area of school.please answer this in full and don't just tell me what a thesis statement is please I know what a thesis statement is. I know you cant highlight but type the phrase and ill highlight it for youHere, catch this casket. It is worth the pains.I am glad tis night, you do not look on me,35For I am much ashamed of my exchange.But love is blind, and lovers cannot seeThe pretty follies that themselves commit,For if they could Cupid himself would blushTo see me thus transformd to a boy. Highlight the phrase that is an idiom in the above passage. YG and h are parallel. what is the value of n PLSS HELP IMMEDIATELY!!! ILL MARK BRAINIEST IF U DONT GUESS OR LEAVE A LINK! A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 27 weeks. Assume that the length of unemployment is normally distributed with population mean of 27 weeks and the population standard deviation of 2 weeks. Suppose you would like to select a random sample of 39 unemployed individuals for a follow-up study.Required:a. What is the distribution of X?b. What is the distribution of x?c. What is the probability that d. For 36 unemployed individuals, find the probability that the average time that they found the next job is less than one randomly selected individual found a job less than 27 weeks? pls help, last question. the one circled in red 9. What is the surface area of a tennis ball with a diameter of 2.6 Inches? Use 3.14 for pl and round to the nearest hundredth.O 5.31 sq in10.61 sq inO 8.16 sq inO 21.23 sq in If you were to re-design your App, what future improvements would you make and why? The statements below refer to the design and operation of the power sub-system on a spacecraft. Select all those statements that are correct. Very often, failure to record a liability means failure to record a(n)a. footnote.b. asset conversion.c. revenue.d. expense i need help with this !!!!! Which of the following graphs has a slope of negative twoRead the excerpt from The Secret Chimneys by Agatha Christie. Then, answer the question that follows.It was just after half-past eleven that he brought the car to rest in the road adjoining the park of Chimneys. Jumping out he scaled the wall easily enough, and set out towards the house. It took him longer than he thought, and presently he broke into a run. A great grey mass loomed up out of the darknessthe venerable pile of Chimneys. In the distance a stable clock chimed the three quarters.11:45the time mentioned on the scrap of paper. Anthony was on the terrace now, looking up at the house. Everything seemed dark and quiet."They go to bed early, these politicians," he murmured to himself.And suddenly a sound smote upon his earsthe sound of a shot. Anthony spun round quickly. The sound had come from within the househe was sure of that. He waited a minute, but everything was still as death. Finally he went up to one of the long French windows from where he judged the sound that had startled him had come. He tried the handle. It was locked. He tried some of the other windows, listening intently all the while. But the silence remained unbroken.In the end he told himself that he must have imagined the sound, or perhaps mistaken a stray shot coming from a poacher in the woods. He turned and retraced his steps across the park, vaguely dissatisfied and uneasy.He looked back at the house, and whilst he looked a light sprang up in one of the windows on the first floor. In another minute it went out again, and the whole place was in darkness once more.Which word best represents the mood of the passage?A-BoredB-MysteriousC-SillyWhich line(s) from the passage best reflects the mood you selected?D-"They go to bed early, these politicians," he murmured to himself.E- It was just after half-past eleven that he brought the car to rest in the road adjoining the park of Chimneys.F-He looked back at the house, and whilst he looked a light sprang up in one of the windows on the first floor. thirds and a y-intercept of 2? Which sentence is written correctly?Either Tanya or Jamahl is writing a report on plant cells.Jacob and I spends time each day working on our science project.The school requires that everybody create a display for the science fair. how to survive in a storm surge PromptWhat personal touches can you add to your outlines which make creating and studying from them easier? A 46 g piece of metal at 250C is placed in a calorimeter with 500. mL of water at 20C. If the final temperature was 24C, the specific heat of the metal is what? Limiting one's access to an extranet is a way for an organization to maintain regulatory control. true false how many sublevels are in Silicon ANONG PANGALAN MO HEHEHEHEHE what is the coefficient of x8y9 in the expansion of (3x + 2y)17?