3 years ago

Which expression is equivalent to (1/2(cos(pi/5)+ i sin(pi/5)))^5

Mathematics

1 answer:

mylen [45]3 years ago

3 0

Answer:

Step-by-step explanation:

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Which set of equivalent fractions can be used when adding 7/8 and 5/12 ?

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If one liter of water was poured equally into 1,000 small cubes, then each cube would contain:

lianna [129]

1/1000 of a liter is a milliliter, so a.
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The measures of the angles in △ABC are given by the expressions in the table.

spayn [35]

Answer:

Part 1) $x=25$

Part 2) $m\angle B=65^o$

Part 3) $m\angle C=50^o$

Step-by-step explanation:

step 1

Find the value of x

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

In the triangle ABC

$m\angle A+m\angle B+m\angle C=180^o$

substitute the given values

$65^o+(3x-10)^o+(2x)^o=180^o$

Solve for x

$(5x+55)^o=180^o$

$5x=180-55\\5x=125\\x=25$

step 2

Find the measure of angle B

we know that

$m\angle B=(3x-10)^o$

substitute the value of x

$m\angle B=(3(25)-10)=65^o$

step 3

Find the measure of angle C

we know that

$m\angle C=(2x)^o$

substitute the value of x

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Gala2k [10]

I’ve had this question before, it’s C

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Step-by-step explanation:

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