Is 12 Because the pattern is 2+1=3; 4+2=6;
6+3=9; 8+4=12 and 10+5=15
Just reflect C and D across the y-axis
C is (-4, -4) so A is (-4, 4)
D is (4, -4) so B is (4, 4)
2^2+b^2=12^2
4+b^2=144
144-4=140
√140 = √b
11.83 = b
Answer:
They will find 69 viruses in 8 hours.
Step-by-step explanation:
The number of viruses after t hours is given by the following equation:
In which V(0) is the initial number of viruses and r is the decay rate, as a decimal.
They start with 500 viruses
This means that
Decay rate of 22% per hour.
This means that
So
How many viruses will they find in 8 hours?
This is V(8).
Rounding to the nearest whole number
They will find 69 viruses in 8 hours.