A= 1/360 m•pi r^2

11/2= 1/360 m• pi (3)^2

11/2= 1/360 m• pi • 9
Divide 360 by 9

11/2= 1/40 m pi

Cross multiply

440=2pi m

Divide both sides by 2pi

m= 70.02817 degrees round if necessary

6 0

3 years ago

Evaluate the following expression (-3)^-2

OleMash [197]

<h3>Answer: the fraction 1/9</h3>

It is approximately equal to 0.1111

=================================

To get this answer, we use the rule

$x^{-k} = \frac{1}{x^k}$

The negative exponent tells us to apply the reciprocal to get the exponent to be positive.

So,

$(-3)^{-2} = \frac{1}{(-3)^2}\\\\(-3)^{-2} = \frac{1}{9}$

Squaring -3 means you square the negative as well

$(-3)^2 = (-3)*(-3) = 9$

8 0

2 years ago

Read 2 more answers

2. Two angles are supplements if their sum is 180 degrees. The measure of one angle is seven-fifths the measure of its supplemen

dusya [7]

The answer is fiftycfour degrees have fun lol

8 0

3 years ago

Read 2 more answers