The number of possible combinations is given by
... C(18, 3) = 18!/(3!(18-3)!) = 18·17·16/(3·2·1) = 816 . . . . possible combinations
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There are 18 ways to choose the first one; 17 ways to choose the second one, and 16 ways to choose the 3rd one. The same 3 students can be chosen in any of 3! = 6 different orders, so the product 18·17·16 must be divided by 6 to get the number of possible combinations in which order doesn't matter.
A because x next to ten represents the amount of dogs that she walked
Answer:
19
Step-by-step explanation:
40-21+19
<span>Simplify this equation 7x+3x-10:
</span><span>7x + 3x - 10 =
10x - 10
<u>Hope his answer helps you!!!</u>
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Step-by-step explanation:
step 1. the standard form of a quadratic equation is f(x) = ax^2 + bx + c
step 2. since they are all in standard form you need to provide more information.