Answer:
The size of angle y is 126°
Step-by-step explanation:
From the diagram of the regular polygons, we have;
One side of each pentagon lies along a side of the octagon
The interior angle of the octagon > The interior angle of the pentagon
Each interior angle of a regular pentagon = 108°
Each interior angle of a regular octagon = 135°
Therefore, ∠ABC = 135° - 108° = 27°
Similarly, ∠BAC = 135° - 108° = 27°
Therefore, by triangle the angle sum theorem, we have;
∠y = ∠ACB = 180° - ∠BAC - ∠ABC = 180° - 27° - 27° = 126°
The size of angle y, ∠y = 126°.
Answer:
The price before vat is 1,425
Step-by-step explanation:
I. When total price = price + vate*price
So 1,539 = x + 0.08 + x => when 0.08 is 8/100 or 8 percent
1,539 = 1.08x
x = 1,539/1.08
x = 1,425
II. Prove by replace x.value with 1,425
1,539 = 1,425 + 0.08(1,425)
1,539 = 1,425 + 114
1,539 = 1539 true
Hope that help :)
40 mph because if you divide 320 by 8 you get 40 and that's his average speed
Answer:
18 is answer
Step-by-step explanation:
√64 + √-81 -i²
; i² = (-1)
8+9-(-1)
17+1
18
Answer:
1) .136 is 13.6%
2) .371/2 is 37.5%, .081/3 is 8.3%, .045 is 4.5%
3) .0016 is .16%, .025 is 2.5%, .331/3 is 33.3%
4) .125 is 12.5%, .0375 is 3.75%
Step-by-step explanation: