You just subtract. The standard form of a complex number is a+bi
1 - 4 = -3
-i - (-5i) = 4i
The answer is -3 + 4i
Answer:
200. 96 cm^2
Step-by-step explanation:
If the area of a circle is 
= 3.14,
radius = 8 cm (r = diameter/2 ----> r = 16/2)
=
Answer:
Pretty sure c is your correct answer :)
Step-by-step explanation:
I hope this helps :)
Answer:
£9.6
Step-by-step explanation:
x = the original price of a CD
£x = 100% of the original price
The price of a CD was decreased by 20% to £7.68.
This means:
£7.68 = 100% - 20%
£7.68 = 80% of the original price
From this, we will find 1% of the original price.
£7.68 ÷ 80 = 1%
£0.096 = 1%
Since the original price ( x ) = 100% of the original price, we will find 100% of the original price.
£0.096 × 100 = 100%
£9.6 = 100%
Therefore, the original price of a CD = £9.6
Answer:
m = -14
Step-by-step explanation:
