What is the range for the number of cars, new and used, that were sold from July to December?
1 answer:
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Calculation of x:
we can see that
x is hypotenuse
so, we can use pythagoras theorem
Calculation of y:
we can use tan formula to find it
opposite=8
adjacent=10
Calculation of z:
we know that sum of all angles of any triangle is 180
...........Answer
₆C₃ is a combination. you can find this setting in the statistics menu of your scientific calculator (i think).
If you don't have a scientific calculator, you can use the following formula:
nCr =
₆C₃ =
=
=
=
= 5 * 4
= 20
Answer: B