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3 years ago

7

Two angles are supplementary if their sum is 180 degrees. One angle measures three times the measure of a smaller angle. If X re

presents the measure of the smaller. Angle and these two angles are supplementary, find the measure of each angle.

1 answer:

Mkey [24]3 years ago

8 0

So 3 times the measure of a small angle

3x + x= 180

4x = 180
X= 45

3(45) + 4(45) = 180

Hope this helps!

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2 years ago

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3 years ago

A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioac

sammy [17]

Answer:

The mass of the radioactive sample after 40 minutes is 12.8 g.

Step-by-step explanation:

The mass of the sample can be found by using the exponential decay equation:

$N_{t} = N_{0}e^{-\lambda t}$

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I hope it helps you!

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3 years ago