Use the formula that states that the sum of the angles of an n-sided polygon is given by
S=(n−2)180
0
........(1)
Since we are given that the two angles are right angles and each of the remaining angles is 144
0
, therefore, the sum is:
S=90
0
+90
0
+(n−2)144
0
.........(2)
Therefore setting (2) equal to (1) we get
(n−2)180
0
=90
0
+90
0
+(n−2)144
0
⇒(n−2)180
0
−(n−2)144
0
=180
0
⇒(n−2)(180
0
−144
0
)=180
0
⇒(n−2)(36
0
)=180
0
⇒n−2=
36
180
⇒n−2=5
⇒n=5+2=7
Hence, the polygon has 7 sides.
Hi there
3/10 means if you pay the bill within 10 days you will get a discount for 3%
1/20 means if you pay the bill within 20 days you will get a for 1%
N/30 means if you pay the bill within 30 you will not get any discount
you paid the bill within 12 days soso you will get a discount for 1%
3,000−3,000×0.01
=2,970
Hope it helps
I tnjnk is b I'm not sure
Answer:
Use Distributive Property.
Step-by-step explanation:
Multiply 3 times -4x to equal -12x
Multiply 3 times (+8) to equal 24
-12x + 24 =
Subtract 24 from each side
-12x + 24 -24 = -24
Divide both sides by -12
-12x/-12 = -24/-12
x = 2
