A child has 11 stuffed animals. How many ways can she choose 3 animals to take along with
2 answers:
Answer:
165 ways
Step-by-step explanation:
That notation is read "n choose m", and it indicates the number of ways one can choose m objects from a collection of n objects, if we don't care about "order".
So in your case we have
which in terms of a "factorial" notation is
11! / 3! × (11-3)!
11×10×9×8! / 3! × 8!
990 / 3
165
I've just assumed that you know what factorial means. If you don't, feel free to ask me.
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The value of b is -16 and the value of ac is 60 after comparing with the standard equation.
<h3>What is a quadratic equation?</h3>Any equation of the form where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.
As we know, the formula for the roots of the quadratic equation is given by:
We have a quadratic function:
= 3x² - 16x + 20
On comparing with standard function:
b = -16
a = 3
c = 20
ac = 3(20) = 60
Thus, the value of b is -16 and the value of ac is 60 after comparing with the standard equation.
Learn more about quadratic equations here:
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Answer:
She has 9 left
Step-by-step explanation:
15 - 6 = 9
Hope this helps! Brainliest would be appreciated!
