The angle in a regular polygon is ((n-2)*180)/n with n being the number of sides. The exterior angles would be (360)/n since exterior angles add up to 360. Therefore, (360)/n= (((n-2)*180)/n)*1/3. Multiplying both sides by n, we get 360=((n-2)*180)*1/3. After that, we divide both sides by 180 and multiply both sides by 3 to get 6=n-2. Therefore, n=8 and it is an octagon
Answer:
x = 6, y = -4
Step-by-step explanation:
x=-2y-2
4x+2y=16 .... divide by 2 both sides
2x + y = 8 ... subtitute x
2 ( -2y - 2) + y = 8
-4y - 4 + y = 8
- 3y = 8 + 4 = 12
y = -4
x = (-2 * -4) - 2 = 6
<u><em>Answer: -2/5+1/5i</em></u>
Explanation:
complex rule.
(-3*7+1*1)+(1*7-(-3)*1)i/7²+1² ← as the fractions
then refine and rewrite the problem down.
-20+10i/50 ← as the fractions shown.
-20+10i/50=-2+i/5
you can also rewrite the problem down in standard complex form.
-2+i/5=-2/5+1/5i
<u><em>=-2/5+1/5i</em></u>
Hope this helps!
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Answer:
118°
Step-by-step explanation:
That was as simple as asking this kinda questions.
Answer:
Step-by-step explanation: