Answer:
There are 177,100 ways.
Step-by-step explanation:
Since there is no regard to order, we use the combinations formula to solve this question.
Combinations formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
In this question:
6 keyboards from a set of 25. So
[tex]C_{25,6} = \frac{25!}{6!(25-6)!} = 177100[/tex]
There are 177,100 ways.
. Of the 200 students surveyed in 5th grade, 120 prefer bananas and 80 prefer apples. what is the part to whole ratio?
Sixty percent of a plane's passengers are women and ten percent of those women are in first class. What is the number of women in first class if the plane is carrying 200 passengers?
Answer:
6
Step-by-step explanation:
60 women. 10 percent would be 6 cause 6 x 10 = 60
answer
12
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a car is traveling at a speed of 83 mph. what is the cars speed in miles per minute? how many miles will the car travel in 2 minutes?
In a certain chemical, the ratio of zinc to copper is 4 to 11. A jar of the chemical contains 418 grams of
copper. How many grams of zinc does it contain?
It contains
grams of zinc.
Answer:
Step-by-step explanation:
Zinc:copper = 4:11
Amount of zinc = 4x
Amount of copper = 11x
11x = 418
x = 38 grams
Amount of zinc = 4x = 152 grams
Jack Lawler, a financial analyst, wants to prepare an article on the Shadow Stock portfolio developed by the American Association of Individual Investors (AAII). A list of the 30 companies in the Shadow Stock portfolio as of March is contained in the Excel Online file below. Use the spreadsheet to answer the following questions.
Jack would like to select a simple random sample of 5 of these companies for an interview concerning management practices.
a. The Shadow Stock companies are listed in column A of the Excel worksheet provided above. In column B we have generated a random number for each of the companies. Use these random numbers to select a simple random sample of 5 of these companies for Jack by finding the smallest random number, the second smallest random number, etc. in column B using an Excel function.
The random numbers corresponding to the first 5 companies selected are (to 5 decimal places):
First company (smallest random number) ____
Second company (2nd smallest random number) ____
Third company (3rd smallest random number) _____
Fourth company (4th smallest random number) _____
Fifth company (5th smallest random number)______
0.15106
0.78664
0.46736
0.31288
0.05743
0.96845
0.70824
0.43701
0.68709
0.49262
0.69531
0.04123
0.51061
0.23796
0.92181
0.91875
0.97469
0.78824
0.30299
0.61512
0.83291
0.05894
0.76809
0.85076
0.61597
0.42998
0.92434
0.36411
0.72285
0.29854
What is the smallest possible value x could take given that it must be an integer?
x>−3
Answer:
The smallest possible value that x could take is -2.
Step-by-step explanation:
Integer values:
Integer values can be either positive or negative, with no decimal parts. The integer set is given by:
{...,-3,-2,-1,0,1,2,3,....}
x>−3
We want the first integer on the number line that is greater than -3. This is -2.
So the smallest possible value that x could take is -2.
The tables show the amount earned by James and Paco working at the same store.
James's Hours Amount Earned
3 $35.40
5 $59.00
8 $94.40
Paco's Hours Amount Earned
2 $24.00
4 $48.00
7 $84.00
What are the two equations that can represent James and Paco's hourly wages, where h is the number of hours worked and d is the amount of money earned?
Compare the equations to determine if there is any difference between what James and Paco make each hour.
its pacos hour because as you can see he makes more i just know trust me its pacos
What place is the digit 3 in the number 6,257.839
Answer:
tenths
Step-by-step explanation:
The question is in the jpg.
Working alone, it takes Stephanie seven hours to clean an attic. Shayna can clean it in 12 hours. How long would it take them to clean the attic working together?
Evaluate the expression when x=4, y=-6, and z= -3.
3x – 2y
----------------
Z
Answer:
3x-2y=3(4)-2(-6)
12+12=24
Now, we divide the result of 3x-2y by z
Therefore, we have 24 divide - 3
-8
Therefore, the answer is - 8
How many degrees is angle x?
Answer:
Step-by-step explanation:
acute angle
Answer:
40 degrees
Step-by-step explanation:
The way I did this (and it won't make much sense I know but its just my way of doing it), is to subtract the bigger angle on the tool by the smaller angle. For example, like in the image, one arrow is at 120 degrees and another at 80 degrees, so I would just do 120-80 which equals 40, and because we talk about angles in the hood its 40 degrees, not plain 40
hope you understand
pls help this is due today whoever anders the most questions gets brainliest
Answer:
4. percent...........
If you overestimate the standard deviation of the population, which type of error are you potentially increasing
Answer:
Standard Error
Step-by-step explanation:
The standard deviation is directly proportional to the sample standard deviation or standard error.
According to the relation :
Standard Error = standard deviation / sqrt(sample size)
Going by these relation an increase in the value of standard deviation will favor or increase the standard error withba constant Number of samples.
Therefore, overestimating the standard deviation will. Cause an increase in the standard error, while underestimating the standard deviation will also lower the standard error.
Draw a model to show 100 ounces of soda divided equally among 12 people. How many
ounces will each person have?
Answer:1,200
Step-by-step explanation:
Answer:
1,200
Step-by-step explanation:
plz help me i will give 14 points!!!
Help ASAP! I’m confused. Thanks!!
Answer:
B
Step-by-step explanation:
Answer: B
Step-by-step explanation: Adjacents are two angles that equal 180 I think.
value of b in the quadratic equation 3x/4=1/x
Donnie has $20 to spend at the amusement park. The
amusement park charges a $10 admission fee. The
amusement park also has special exhibits that cost $4.00
each to view. Which equation can be used to determine the
amount of money, y, that Donnie has left if he views x
exhibits?
Answer:
C. Y=10-4x
Step-by-step explanation:
hurry I am timed Which part of the cell holds genetic information in the molecule DNA?
ribosome
chromosomes
Golgi body
vacuole
Answer:
Chromosomes
Have a great day!
Answer:
chromosomes are genetic materials found in the Nucleus of a cell, and hence it holds DNA .
Will give you brainliest PLS HELP ASAPPP
Answer: UT=18
Step-by-step explanation:
Answer:18
Step-by-step explanation:
It’s divided by 3.5 so divide 63/3.5
After a discount of 30%, the sale price of a ride
pass at a fun park is $35. What was the original
price?
Answer:
Step-by-step explanation:
Its simple really, its 45.5
Since its a mark down and you want to find the original number, you have to multiply 35 by 1.3
35 x 1.3 = 45.5
Which then gives you 45.5
People drive, on average, 14,063 miles per year. About how many miles each week is that?
Answer:
About 270.44 miles
Step-by-step explanation:
There is about 52 weeks in a year. 14,063 divided by 52 is 270.44\
DONT TRUST ME ON THIS
Answer:
270 miles a week
Step-by-step explanation:
there are 52 weeks in a year
so you divide 15,063 by 52
that would equal 270
Find x. (More info in the picture)
Answer:
The answer is 3.
Step-by-step explanation:
Pls help me this is 7th grade (ADVANCED)
Answer:
Step-by-step explanation:
Any line will add up to 180 degrees. If you subtract the 165 degrees from 180 (total), you will get the x value.
180 - 165 = 15 degrees
Figue out the measures
Answer:
Angle 1 is 134 and Angle 2 is 46
15. A private swimming club
ges $2.50
After the first hour, swimmers have to pay an additional $1.50 for each h.
hour, or part of a half hour thereafter. Georgina and her friend swam int
pool for x hours.
Answer:$11.00
Step-by-step explanation:
A study suggested that childrenbetween the ages of 6 and 11 in the US have anaverage weightof 74 lbs. with a standard deviation of 2.7 lbs.If we assumethe weights are normally distributed, what proportion of childrenin this age range between 70 lbs. and 85 lbs.
Answer:
The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
A study suggested that children between the ages of 6 and 11 in the US have an average weightof 74 lbs, with a standard deviation of 2.7 lbs.
This means that [tex]\mu = 74, \sigma = 2.7[/tex]
What proportion of childrenin this age range between 70 lbs and 85 lbs.
This is the pvalue of Z when X = 85 subtracted by the pvalue of Z when X = 70. So
X = 85
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{85 - 74}{2.7}[/tex]
[tex]Z = 4.07[/tex]
[tex]Z = 4.07[/tex] has a pvalue of 1
X = 70
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{70 - 74}{2.7}[/tex]
[tex]Z = -1.48[/tex]
[tex]Z = -1.48[/tex] has a pvalue of 0.0694
1 - 0.0694 = 0.9306
The proportion of children in this age range between 70 lbs and 85 lbs is of 0.9306.
6. Los divisores de 28 son:
a. D28 = { 1, 2, 3, 7, 9, 28}
b. D28 = {1,2,5, 8, 14,28}
c. D28 = {1, 2, 4, 7, 14, 28}
Answer:
C
Step-by-step explanation:
28/1 = 28.
28/2 = 14.
28/4 = 7.
28/7 = 4.
28/14 = 2.
28/28 = 1.
etc.
What is an equation of the line that passes through the points (4, -8) and (-4, 2)?
Put your answer in fully reduced form.