Irrational because it keeps going on and on but doesn’t repeat
Answer:
The measure of an interior angle of a regular 12-gon is 150°.
Hence, option 'C' is correct.
Step-by-step explanation:
We need to determine the measure of an interior angle of a regular 12-gon.
- We know that the number of sides in a regular 12-gon = n = 12
Thus,
Using the formula to determine the measure of an interior angle of a regular 12-gon is given by
(n - 2) × 180° = n × interior angle
substitute n = 12
(12 - 2) × 180 = 12 × interior angle
10 × 180 = 12 × interior angle
Interior angle = (10 × 180) / 12
= 1800 / 12
= 150°
Therefore, the measure of an interior angle of a regular 12-gon is 150°.
Hence, option 'C' is correct.
Answer:
<h2> x = 324 </h2>
Step-by-step explanation:
<h3>y=Kx</h3>
- <u>make k the subject of formula</u>
<h3>=> Kx = y</h3><h3>=> k = y/x</h3>
- <u>add the value of y = 18 when x = 2.</u>
<h3>=> k = 18/2</h3>
<h3>=> k = 9</h3>
<em><u>What is the value of x when y = 36?</u></em>
<h3>=> x = Kx</h3>
- <u>substitute k equals to 9 and from the question y equals to 36 into this equation</u>
<h3>=> x = 9(36)</h3>
<h3>=> x = 324</h3>
Mass number = atomic number + number of neutrons
23 = 11 + n
n = 23 - 11 = 12
Therefore, thre are 12 neutron in the neucleus of a Sodium atom.
Answer:
192
Step-by-step explanation:
3 * 4^3
Using PEMDAS
Exponents first
4^3 = 4*4*4 = 64
Replace into the expression
3 *64
3*64 =192
