3 years ago

What is the simplest value of exponential expression 27^1/3

Mathematics

1 answer:

velikii [3]3 years ago

4 0

Answer:

The value of this would be 3.

Step-by-step explanation:

When you raise something to the third power, it is the same as taking the third root. The third root of 27 is 3.

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3 years ago

What is the measure in degrees for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm?

Marina CMI [18]

Answer:

Therefore the measure of the central angle is 45.86°.

Step-by-step explanation:

Given:

Radius = 9 cm

arc length = 7.2 cm

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Solution:

If the θ measured in degree then the arc length is given as

$\textrm{arc lenght}=\dfrac{\theta}{360\°}\times 2\pi r$

Where r = radius, θ = Central angle

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$7.2=\dfrac{\theta}{360}\times 2\times 3.14\times 9\\\\\theta=\dfrac{2592}{56.52}=45.8598=45.86\\\therefore \theta=45.86\°$

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