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3 years ago

9

-6-8(-8x-3) please help me and with how you did it

1 answer:

Leya [2.2K]3 years ago

8 0

Answer:

x = 9/32

Step-by-step explanation:

I believe you may have meant -6 equals, so here is how I did it

-6 = 8(-8x-3)

-6 = 64x - 24

64x = 18

x = 9/32

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There are several ways the door can be locked, these ways illustrate combination.

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From the question, we have:

$\mathbf{n = 5}$ --- the number of digits

$\mathbf{r = 3}$ ---- the number of actions

Each of the three actions can either be:

<em>Pressing one button</em>
<em>Pressing a pair of buttons</em>

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The number of ways of pressing a button is:

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$\mathbf{n_1 = \frac{5!}{(5-1)!1!}}$

$\mathbf{n_1 = \frac{5!}{4!1!}}$

$\mathbf{n_1 = \frac{5 \times 4!}{4! \times 1}}$

$\mathbf{n_1 = 5}$

The number of ways of pressing a pair is:

$\mathbf{n_2 = ^5C_2}$

Apply combination formula

$\mathbf{n_2 = \frac{5!}{(5-2)!2!}}$

$\mathbf{n_2 = \frac{5!}{3!2!}}$

$\mathbf{n_2 = \frac{5 \times 4 \times 3!}{3! \times 2 \times 1}}$

$\mathbf{n_2 = 10}$

So, the number of ways of performing one action is:

$\mathbf{n =n_1 + n_2}$

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For the three actions, the number of ways is:

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Read more about permutation and combination at:

brainly.com/question/4546043

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago