When calculating probability you need to remember that probability is:
something that you are observing divided by total number of participants.
The number you get is relative value(has value between 0 and 1) and if you want to get it in percentage (more clearly) just multiply it with 100.
In this case we are observing blood type B persons. Number of them is 165.
Total number of persons is 1500. Therefore our calculation looks like this:
165/1500 = 0.11 or the probability is 0.11*100=11%
1) m=-2
2) C) y=-3/4x -6
3) D) y=2/5x-2
I don't understand 4 nor 5. My apologies.
6) Parallel
With rational coefficients (a, b and c), if one zero is rational, that means the discriminant is rational. We can conclude that the other is also rational.
Answer:
The 3rd choice: 2/3 tank - 1/6 tank = 1/2 tank
Step-by-step explanation:
I assume those numbers are fractions.
The gas tank of Wendy’s car was 2/3 full. She used 1/6 of a tank of gas when driving to and from work. Which equation shows how full the gas tank is now?
We subtract 1/6 from 2/3. We need to use the common denominator 6.
2/3 - 1/6 = 4/6 - 1/6 = 3/6
Now we reduce 3/6.
2/3 - 1/6 = 1/2
Answer: 2/3 tank - 1/6 tank = 1/2 tank
Answer:
infinitely many solutions
Step-by-step explanation:
The two equations are the same line. When two lines are exactly the same, they have infinitely many solutions
