3 years ago

What is the answer to 5-1/3n=-2

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

4 0

Answer:

21 = n

Step-by-step explanation:

$5 - \frac{1}{3}n = -2$

-5 - 5

________________

-⅓n = -7

____ __

-⅓ -⅓

21 = n

* Dividing by a fraction is the exact same as multiplying by its multiplicative inverse:

$\frac{-7}{-\frac{1}{3}} = -7 \times -3 = 21$

I am joyous to assist you anytime.

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Triangle A B C is shown. Angle A C B is a right angle. The length of the hypotenuse is 20.

kherson [118]

Answer:

The length of BC is needed because it is the side opposite ∠A.

Step-by-step explanation:

Given the right angles triangle as shown in the attachment, we can get sin(A) without using Pythagoras theorem. Instead we will use SOH CAH TOA trigonometry identity.

According to SOH:

Sin(A) = Opposite/Hypotenuse

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Based on the formula, we will need to get the opposite side of the triangle which is length BC for us to be able to determine sinA since the hypotenuse is given.