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Ad libitum [116K]
4 years ago
6

Please help me with this question!:) for brianlst

Mathematics
1 answer:
Burka [1]4 years ago
8 0
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Max points!! help please!!! tyyyyy
krek1111 [17]

Answer:

b.  70

Step-by-step explanation:

The Binomial Coefficient can be used to calculate the number of ways objects can be arranged.  

<u>Binomial Coefficient</u>

\displaystyle \rm \binom{n}{r} \: = \:^{n}C_{r} = \frac{n!}{r!(n-r)!}

The exclamation mark "!" placed after a number means factorial and indicates to multiply all whole numbers from the given number down to 1.

Example:  4! = 4 × 3 × 2 × 1

The Binomial Coefficient gives us the number of ways of picking "r" unordered outcomes from "n" possibilities.

As there are 8 friends  ⇒  n = 8.

As each car takes 4 friends  ⇒  r = 4.

Substitute these values into the formula:

\begin{aligned} \implies \displaystyle \rm \binom{8}{4} \: = \:^{8}C_{4} & = \rm \frac{8!}{4!(8-4)!}\\\\ & = \rm \dfrac{8 \times 7\times 6\times 5\times 4\times 3\times 2\times 1}{4\times 3\times 2\times 1\times 4\times 3\times 2\times 1}\\\\ & = \rm \dfrac{8 \times 7\times 6\times 5}{4\times 3\times 2\times 1}\\\\ & = \rm \dfrac{1680}{24}\\\\ & = \rm 70\end{aligned}

Learn more about the binomial coefficient here:

brainly.com/question/27802390

brainly.com/question/27800539

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1 year ago
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The answer is B) which is letter E . hope this helps <3
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3 years ago
Four less than a number squared
nordsb [41]
4 < x^2 i think i dont really know im just trying to get my account verified
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What is the acronym used to help remind you of the order<br> used to simplify expressions?
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Step-by-step explanation:

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3 years ago
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We'll do the sine trig. identity, as it is the most effective.

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So, for this setup:
sin(20)= \frac{x}{10}

Now, we solve for x:
x=10sin(20)=3.42

So, answer is 3.4
7 0
4 years ago
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