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Oksana_A [137]
3 years ago
7

Simon is creating a flower arrangement. A client asked him to select 4 of the 7 available flower options to create the arrangeme

nt. How many different groups of 4 flowers can Simon choose?
apparently its 35 I don't get why please help
formula:
nCr= n! / (n−r)!⋅r!
​
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0

Step-by-step explanation:

7C4=7!/((7-4)!*4!)

=7!/(3!*4!)

=7*6*5*4!/3!*4!

=7*6*5/3!

=7*6*5/3*2*1

=7*5

=35

SashulF [63]3 years ago
6 0

Answer:

i dont know but good luck! <3

Step-by-step explanation:

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Jennifer is taking a four question multiple choice test. each question has four possible answers. if she guesses on all of the q
xxTIMURxx [149]
Probability of getting the correct answer in the first question is 1/4
probability of getting the correct answer in the second question is 1/4
probability of getting the correct answer in the second question is 1/4                 the probability that he gets one question wrong is 3/4
which is 1/4*1/4*1/4*3/4=3/256
for the four questions because he may get the first answer correct and my be the second question wrong, or the the third wrong and the other correct or the first wrong and others correct we should take care of all this by
multiplying 3/256*4=12/256
                               =0.046875
in three decimal places we have 0.047
6 0
3 years ago
9/11 convert to decimal
Tasya [4]
The answer is 0.81 repeating
3 0
3 years ago
Raphael is timing how fast he can do a series of 5
Nana76 [90]

Answer:

Time left for each question is less than 5.5 minutes

Step-by-step explanation:

Given that:

Raphael is trying to solve 5 math questions in less than 20 minutes.

3 questions have been completed which have taken 3 minutes each.

To find:

How much time is left with Raphael for each question so as to reach his goal.

Solution:

First of all, let us find the time that has been already consumed by Raphael in solving the 3 questions.

3 \times 3 = 9 minutes

Time left = Total Time - Time already consumed

Time left = 20 - 9 = 11 minutes

Number of questions to be solved = Total questions - Questions solved

Number of questions to be solved = 5 - 3 = 2

Average time left for each question = Time left divided by Number of questions to be solved

Average time left for each question = 11 \div 2 = 5.5 minutes

Therefore, time left for each question is less than 5.5 minutes.

4 0
3 years ago
Greatest common factor of three univariate monomials
ryzh [129]

Answer:

3

Step-by-step explanation:

The GCF is the largest number that is a factor of the numbers listed. In this case, since one of the numbers is a constant the GCF will not have a variable. However, all of the numbers can be divided by 3. This is because 3 is the GCF.

3 0
3 years ago
In the figure at right, it is given than BDC is straight, BD = DA, and AB = AC = DC. Find the size of angle C
Ilya [14]
You need to use the angle sum of  a triangle in triangle CAD to express y in term of x
for triangla CAD , y = (180 -x) /2
180 = 3x + [ (180-x)/2]

x = 36

hope this helps
6 0
3 years ago
Read 2 more answers
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