Answer:
nCr = n! / (r!)(n-r!).
Step-by-step explanation:
That would be nCr = n! / (r!)(n-r!).
A quick way of working these out is as follows:
Take 7C4:
this is 7*6*5*4/4*3*2*1 Cancelling out the 4 and 3*2:
= 7*5
= 35.
15C12 = 15C(15-12)
= 15C3
= 15*14*13 / 3*2*1
= 5*7*13
= 455.
Answer:
1/4
Step-by-step explanation:
y = 1/4x -4
This equation is in the form
y= mx+b where m is the slope and b is the y intercept
The slope is 1/4
Answer: the answer is 99
Step-by-step explanation: this is esay
The sales last year of the company is 5617
<h3>How to determine the sales last year?</h3>
The given parameters are:
Company sales = 6740
Percentage increase = 20%
The sales of the company last year (x) to date is calculated as:
Company sales = (1 + Proportion) * Last year sales
Substitute the known values in the above equation
6740 = (1 + 20%) * x
Evaluate the sum
6740 = 1.2 * x
Divide both sides by 1.2
x = 5617
Hence, the sales last year is 5617
Read more about percentages at:
brainly.com/question/843074
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|x| > 10
x < - 10 or x > 10
The plot is open dots on -10 and 10 and shading to the left of -10 and to the right of 10.
Answer is the third choice.