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Olin [163]
4 years ago
8

The awnser of the question plzzz

Mathematics
2 answers:
Andrew [12]4 years ago
3 0

Hey there! Welcome to Brainly

We see that Damian earns $8 for every hour he works. This means that when x=1, Damian will earn 8 dollars, 2 he will earn $16, etc.

Since he constantly adds 8 every hour, it would look like this.

8+8+8+8+8+8+8.....

This is an example of multiplication.

The thing is, we are not sure how many 8's we are adding.

We can use the variable "x" to represent ANY number of 8's, or hours he worked.

We would multiply this x by 8 to show that he will earn $8 for EACH number of hours he works.

8 x x

The problem is, we cannot write our multiplication sign like this, because it looks just like our x we are using.

We can rewrite our multiplication symbol using · or we can just put our x right next to the eight. When a variable is right next to a constant, or number without a variable, it turns it into a mini multiplication equation, but in a simplified form.

8x

Now, we need to write this as an equation. We need to say that something else is equal to 8x. We could say, his money, which we can represent with as d.

Therefore, we could write our equation as d= 8x.

I hope this helps! Have a day as sweet and fresh as lemonade! :)


defon4 years ago
3 0
Let p = amount of money Damien earns
X= the number of hours he works

p=8x
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Step-by-step explanation:

Write,

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Now using half angle formula, cos(x) = 2 cos²(\frac{\pi }{2}) − 1, we can write cos \frac{\pi }{4} = 2

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\sqrt{\frac{\sqrt{2}+1}{2\sqrt{2}}} = \sqrt{\frac{2+\sqrt{2}}{4} = \frac{\sqrt{2+\sqrt{2}}}{2}

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cos (\frac{7\pi}{8}) = −cos (\frac{\pi }{8}) = -\frac{\sqrt{2+\sqrt{2}}}{2}

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