2 years ago

PLEASE HELP ME WITH THIS

Mathematics

1 answer:

galina1969 [7]2 years ago

6 0

Answer:

i do think it's D or C

Step-by-step explanation:

D or C

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Solve for x. round to the nearest hundredth if necessary.

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Answer: $x=11.47$

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

$cos\alpha=\frac{adjacent}{hypotenuse}$

Then, knowing that:

$\alpha=55\°\\adjacent=x\\hypotenuse=20$

You need to substitute these values into $cos\alpha=\frac{adjacent}{hypotenuse}$ :

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Now, you can solve for "x":

$20*cos(55\°)=x\\x=11.471$

Rounded to the nearest hundreth:

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PLEASE HELP ME WITH THIS​

PLEASE HELP ME WITH THIS