Answer:
Step-by-step explanation:
22/7x4^2=50.28
3x3=9
50.28-9=41.28
It’s BD because it need to be the opposite ray and this one is the opposite ray so yes this is it
Answer:

Step-by-step explanation:
As the numbers are only between 1 and 30
Total number of possible combinations = 30×30×30 = 27000
If there are 100 attempts then

∴ Probability someone can guess the correct combination given 100 attempts is 
Hello :
f(x) = (x-5)(x+2i)
= x² +2ix -5x-10i
f(x) = x² +(2i-5)x -10i
<span>coefficients : a =1 b = 2i-5 c =-10i</span>
19-3=16
16/8=2
2x8+3=19
The answer is 2.