2 years ago

Evaluate (-A)2 for A = 5, B = -4, and C = 2. 0-5 0-25 25 Help please

Mathematics

1 answer:

AlexFokin [52]2 years ago

7 0

It will be 25

Hope you get it right

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River C is 200 miles longer than River D. If the sum of their lengths is 5580 miles, what is the length of each river?

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10. A weight hangs on a spring. The vibration period of that weight is the time in which it makes a complete cycle in motion. Su

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The vibration period of the spring will be 0.2 seconds

Explanation

The relationship between the vibration period "T" (in seconds) and the weight "w" (in kilograms) is given by...

$T= 2\sqrt{\frac{w}{200}}$

Given that, the weight(w) = 2.0 kilograms

So, plugging w = 2.0 into the above equation, we will get...

$T= 2\sqrt{\frac{2.0}{200} } \\ \\ T= 2\sqrt{\frac{1}{100} }\\ \\ T= 2*\frac{1}{10}\\ \\ T= \frac{1}{5}=0.2$

So, the vibration period of the spring will be 0.2 seconds.

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