Being timed so please be fast
Aeronautical researchers have developed three different processes to pack a parachute. They want to compare the different processes in terms of time to deploy and reliability. There are 1,200 objects that they can drop with a parachute from a plane. Using a table of random digits, the researchers will randomly place the 1,200 items into three equally sized treatment groups suitable for comparison.

How should the items be labeled to select the process groups using a table of random digits?

A 1–3
B 1–1200
C 0000–1200
D 0000–1199

Answers

Answer 1

Answer:

0000–1199

Step-by-step explanation:

Edge 2020/2021


Related Questions

How many ways are there to choose five doughnuts if there are eight varieties (and only the type of each doughnut matters)?

Answers

Answer:

There are 56 ways to choose 5 from 8 varieties.

Step-by-step explanation:

a) Choosing 5 out of 8

This is a combination problem, given by the formula below:

C(n,r)=?

 

C(n,r)=C(8,5)

=8!/(5!(8−5)!)

= 56

b) A combination is the number of ways to choose a sample of r elements from a set of n distinct objects where order does not matter and replacements are not allowed. The result of this combination of 5 out of 8 varieties shows that there 56 ways one can choose.  The formula is given by 8 factorial divided by (5 factorial by 3 factorial).

What is the product of (5.9 x 10^3) and (5.9 x 10^4) expressed in scientific notation?
please help

Answers

Answer: 3.481 x 10^8

:)

Step-by-step explanation:

(5.9 x 10^3)(5.9 x 10^4)

(5.9 x 5.9) (10^3 x 10^4)

34.81 x 10^7

= 3.481 x 10^8

Oceanside Bike Rental Shop charges a 15 dollar fixed fee plus 9 dollars an hour for renting a bike. Dan paid 69 dollars to rent a bike. Which equation when solved would show how many hours the bike was rentented? Let h = hours

Answers

Answer:

Step-by-step explanation:

Dan paid  69 divided by 9 = H - 15

If the electrician charges $65 an hour, how much will Laura's total for the electrical work be, including

the parts and ceiling fan?

Show your work

Answers

Answer:

Given: Electrician charges= $65/ hour

Step-by-step explanation:

let the total time(total hours) he worked for Laura be 't'

if for one hour, he charges $65

then for 't' hours he will charge=$65 * t

total charges for the parts and ceiling fan=$65t

GIVING BRAINLIST TO WHOEVER ANSWERS

Answers

37+6g=79, 17 games ://///////////////

Find the value of X in the triangle shown.

Answers

x = 12

Use the Pythagorean Theorem.
13^2 = 5^2 + x^2
169 = 25 + x^2
Subtract 25 from both sides.
144 = x^2
Take the square root.
12 = x

The brown family might plant 1/8 tomatoes, 1/8 cabbage, and 1/8 peppers. If they do, what fraction of their garden will be unplanted?

Answers

I don’t really know the answer

angie needs to buy 156 candlesbfor a party. each package has 8 candles. how many packages should Angie buy?​

Answers

20 packages

Step-by-step explanation:

Divide 156 by 8 and you get 19.5. Angie needs 156 candles, so you round 19.5 to 20.

the sum of allmultiples of 6 between 10 & 87 is equal to

Answers

The sum of all multiples of 6 between 12 and 87 is equal to 624.

How to get the sum?

The multiples of 6 are of the form: 6*n

Where n is an integer.

The multiples between 10 and 87 are:

6*2 = 12

6*3 = 13

...

6*14 = 84

Then the sum of all these multiples can be written as:

[tex]6*2 + 6*3 + 6*4 + ... + 6*14\\\\= 6*(2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14) = 624[/tex]

The sum of all multiples of 6 between 12 and 87 is equal to 624.

If you want to learn more about multiples:

https://brainly.com/question/251701

#SPJ1

A water well drilling rig has dug to a height of -15 feet in three hours. If the rig has been running constantly and is currently at a height of -192.5 feet, for how long has the rig been running?



22.25 hours

97.4 hours

38.5 hours

12.8 hours

Answers

A. 22.25 i think it’s a because it you do your math correctly it was give you A

Find the value of each trigonometric ratio.

Answers

Answer: C

Step-by-step explanation:

u have insta

Answer:

sine = opposite / hypotenuse

sine C = 8 / 15

sine C = .53333333333333

Step-by-step explanation:

The population of California is approximately 38,040,000. The population of Texas is about 2.606 × 107. What is the approximate total population of these two states?

Answers

Answer:

Step-by-step explanation:

California population 3.804 x10^7

texas population          2.606x 10^7

total= 6.4 x10^7

Answer:

c

Step-by-step explanation:

There are 15 parking garages downtown. Each parking lot can hold 175 cars. About how many parking spaces are available at the downtown garages?​

Answers

Answer:

2625

Step-by-step:

please give answers asap!! correct answers only

Answers

Answer:

15 units

Step-by-step explanation:

UW is the midsegment of ΔVXY,

By midsegment theorem of a triangle,

"Segment joining the midpoints of two sides of a triangle is parallel to the third side and measure of midsegment is half of the length of the third side."

UW = [tex]\frac{1}{2}(XY)[/tex]

Since, XY = 30 units

UW = [tex]\frac{1}{2}(30)[/tex]

      = 15 units

Therefore, length of the midsegment UW = 15 units will be the answer.

which is true when x-3<2

Answers

Hey there!

“x – 3 < 2”

Let’s change your current question into a(n) equation to make it EASIER to solve (this is for temporary purposes ONLY)

• Temporary question

x – 3 = 2

• First: ADD BOTH SIDES by 3

x – 3 + 3 = 2 + 3

• CANCEL: –3 + 3 because that gives you 0

• KEEP: 2 + 3 because that helps solve for x

• New temporary question: 2 + 3 = x

2 + 3 = 5

The temporary question answer is: x = 5 ✅

NOW LETS SOLVE FOR YOUR ACTUAL EQUATION (just saying it REQUIRES the SAME steps as the temporary question just a TAD bit differently!)

x – 3 < 2

• FIRST: ADD both SIDES BY 3

x – 3 + 3 < 2 + 3

• CANCEL: –3 + 3 because that gives you 0

• KEEP: 2 + 3 because that helps us compare the answer with x

• New equation: x < 2 + 3

2 + 3 = 5

x < 5

Answer to your given question is: x < 5 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

I need help please!!!!!!!!!!!!!!!!!!!

Answers

Answer:

A sand dune stands 5 feet above sea level. The hill is eroding at a rate of 1 foot per 20 years. Let y represent the height of the sand dune after x years. Which equation represents the situation?

y = negative StartFraction 1 Over 20 EndFraction x minus 5

y = negative StartFraction 1 Over 20 EndFraction x + 5

y = negative 20 x minus 5

y = negative 20 x + 5

Step-by-step explanation:

A copper wire has a mass of 9.09grams and a volume of 1.01cubic centimeters. Calculate its density.
Write your answer to the hundredths place.

Answers

Answer: The density of copper should be the same in a wire as it is in a chunk,

so the answer is 8.9 g/cm3.

Solve the system of equations.
13r - 6y = 22
2 = y + 6

Answers

Answer:

The answer is just r = -2/13

A company loses 345,000 in 2011

Answers

Answer:

they lose 20,000,000 in 2021 how much of a difrence is this

Step-by-step explanation:

What is the distance between points A and B?

Answers

-4,-3,-2,-1,0
which means 4 numbers

Answer:

I think it is B

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

fatma is 26 years old.her daughter is 4 years old. in how many years will fatma be doubled her daughters ago?​

Answers

Answer:

my answer aint as good as the other persons but there right it would be 18 years

Step-by-step explanation:

Jones is getting a new laptop. The regular price is $986. The store is offering an 18% discount. What is the cost of the laptop not including tax

Answers

With 18% off it’s $808.52

The amount of time needed for a certain machine to process a job is a random variable with mean EXi = 10 minutes and Var(Xi)=2 minutes2. The times needed for different jobs are independent from each other. Find the probability that the machine processes less than or equal to 40jobs in 7hours.

Answers

Answer:

0.98732

Step-by-step explanation:

Given that :

Mean = 10 minutes

Variance = 2 minutes

For less than equal 40 jobs

Mean (m) = 40 * 10 = 400 minutes

Variance = 2 * 40 = 80 minutes

Standard deviation (s) = √variance = √80

Converting hours to minutes

X = 60 * 7 = 420 minutes

P(X≤ 420) :

Z = (x - m) / s

P(X≤ 420) :

Z = (420 - 400) / √80

Z = 20 / √80 = 20 / 8.9442 = 2.236

P(Z ≤ 2.236) = 0.98732

The probability that the machine processes less than or equal should be 0.98732

Calculation of the probability:

Since

Mean = 10 minutes

Variance = 2 minutes

For less than equal 40 jobs

Mean (m) = 40 ( 10) = 400 minutes

Variance = 2 (40) = 80 minutes

Now

Standard deviation (s) = √variance = √80

Now here we Converting hours to minutes

So,

X = 60 (7) = 420 minutes

Now

P(X≤ 420) :

Z = (x - m) / s

Z = (420 - 400) / √80

Z = 20 / √80

= 20 / 8.9442

= 2.236

Now finally

P(Z ≤ 2.236)

= 0.98732

Hence, The probability that the machine processes less than or equal should be 0.98732

Learn more about probability here: https://brainly.com/question/3066522

Help please will brain list

Answers

Answer. All the correct statements are:-

B. -8.7 is further to the left on the number line than -8.4

C. -8.7 is less than -8.4

F. -8.4 is greater than -8.7

Answer:

Step-by-step explanation:

help me please help me ..

Answers

Answer:

26 is the correct answer.

Mike drove 397 miles on 8 hours. About how many miles did she drive each hour?

Answers

Answer:

49.6

Step-by-step explanation:

just divide 397 by 8

Answer:

About 49.63 miles per hour

Step-by-step explanation:

but this is the answer

hope this helps

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample conducted by The Wall Street Journal showed that the standard deviation of the amount of time devoted to previews was five minutes. Use that as a planning value for the standard deviation in answering the following questions.a. If we want to estimate the population mean time for previews at movie theaters with a margin of error of 78 seconds, what sample size should be used

Answers

Answer:

57

Step-by-step explanation:

Given that :

Standard deviation (σ) = 5 minutes = (5 *60) = 300 seconds

Margin of Error, E = 78

Assume a confidence interval of 95%;

Using the relation :

((Zα/2 * σ) / E)²

(1 - α)/2 = (1 - 0.95)/2 = 0.05 /2 = 0.025

Z0.025 = 1.96

Sample size = ((1.96 * 300) / 78)²

Sample size = (588 / 78)^2

Sample size = 7.5384615^2

Sample size = 56.828

= 57 samples

Sarah bought 4 pens for $1.00. How many did she pay for each pen?

Answers

Answer:

Sarah paid 25 cents for each individual pen

Step-by-step explanation:

Answer:

she paid .25 cents for each

Step-by-step explanation:

1.00÷4=.25

A baker uses chocolate with 75% cocoa for his famous cake. But the supplier delivered 100 lb of chocolate with 70% cocoa. The baker needs to melt and mix the delivery with chocolate that has 90% cocoa. How much of the 90% chocolate should he use.

Answers

Answer:

33 1/3 pound of cocoa

Step-by-step explanation:

;)

express 4,085 in scientific notation ​

Answers

4.085 x 10 to the 3 power is your answer

Answer:

4.085 x 10^3

Step-by-step explanation:

just use powers to figure out these questions. it always starts from a single digit! for example if the number is 4,000 it would just be 4 x 10^3 but because theres more unique numbers then it would be a decimal

Other Questions
why do the antibody numbers remain higher after the first infection than before it? Why do we need to follow the proper placing of soil media in the seedbox? Someone who has the knowledge and experience to handle problems is a Convert the following equation from standard form to slope-intercept form.x +y = -3 Which numbers fit the sentence below:La _____ y la _____ son mis canciones favoritas.2., 6.2. , 6.2., 6.2nd, 6th 7) A $125.70 grocery total is discounted 30%. What is the total paid? A airplane travels a speed of 300 miles per hour how far in miles will the air plane travel in 20 minutes decmal or fraction answer hello I love u any one Identify the inventions made by the personalities. A billboard displays a large picture of a tire, draw to scale. The actual tire has a diameters of 40 inches. If the scale used for the picture is 1 3/4 feet equals 2 inches, what is the diameter of the tire, in feet, on the billboard? Plz I need it A spray can is used until it is empty except for the propellant gas, which has a pressure of 1307 torr at 23C. If the can is thrown into a fire (T = 477C), what will be the pressure (in torr) in the hot can -2/3 x = -3/2 dont unserstand how to solve this Evaluate y=4x+3, for x=4. Expand. Your answer should be a polynomial in standard form. p (p2-p-1) = Stuck? Watch a video or use a hint. HELP PLS!!!!!!!!!!!!!!It was a hot, sunny day. I took my bicycle for a long ride. I rode it down the long road and across the bridge over the lake. I was having such a good time with my trusty friend. But after an hour or so, my bicycle seemed worn out. I wanted to go to the top of King's Hill. However, my bicycle just couldn't make it up the hill because _______. Which of these responses completes the joke with a pun? A. it fell asleep at the wheel B. it ran its course C. it ran out of gas D. it was two-tired Which of the following is not true about organic farming?A) It is more like a natural ecosystem than a monoculture.B) It occupies a small fraction of U.S. farmland.C) It minimizes negative environmental impacts.D) It contributes a large amount to agricultural income.E) It produces foods that do not contain artificial compounds. Organizers of community mobilization seek to engage members of the community and blank for their community and Necessary changes PLEASE! need help now please! A computers random number generator produces random integers from 1 to 50. What is the probability that the first 3 integers generated are single-digit numbers? What technique did Hershey and Chase use in their experiment that led to the conclusion that DNA, not protein, was the genetic material in viruses?