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Alchen [17]
3 years ago
11

Oh god does anyone understand this? I need help it’s for a test and I wanna do good!!

Mathematics
1 answer:
Kobotan [32]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Its a right angle, so you have to use trigonometry.

To find x , you use sin60° = opposite/hypotenuse

opposite = x and hypotenuse = 5 . So,

sin60°= x/ 5

5sin60° = x

put the value into your calculator you ' ll get:

x = \frac{5 \sqrt{3} }{2}

To find y, cos60°= adjacent/hypotenuse

adjacent= y and hypotenuse = 5. So,

cos60°= y/5

5cos60°=y

y =  \frac{5}{2}

Hope I was able to help. Good luck!<3

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3 years ago
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If a number is irrational, it cannot be represented as a simple fraction, it cannot be written as a terminating decimal, and not as a repeating decimal. It never ends, never repeats, just like the constant pi.

Step-by-step explanation:

So if a number is rational, it can be represented as a simple fraction, it can be written as a terminating decimal, and a repeating decimal.

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8 0
3 years ago
Which expression is equivalent to −1/ 12x−1 /3?
alexandr402 [8]

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