Five million ninety thousand thirty nine
2 answers:
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The astronomer has to choose 3 star images out of 8.This is a problem of combinations. This can be expressed as 8C3 i.e. combination of 8 objects taken 3 at a time.
This means, if 8 images are nearby the astronomer will have 56 choices <span>of the three stars.</span>
This means, if 8 images are nearby the astronomer will have 56 choices <span>of the three stars.</span>
Step-by-step explanation:
To give you a hand for this question, I will show you how to work out one of the equations
One equation is
We know that when x = -2, y = 6
So we can substitute in -2 and see if we get 6
So this equation is true! Now try the same for the other equations :)