Answer:
x = ±
Step-by-step explanation:
We have been given the quadratic equation;
The first step is to subtract 50 from both sides of the equation;
Multiplying both sides by -1 yields;
The final step is to obtain square roots on both sides;
Therefore, x = ±
Answer:
Well this is a bit of a tall order :) but here we go:
A. See the attached frequency tables, done vertically and horizontally.
B. We can see from the horizontal freq table that .6 = 60% of all the pine trees died.
C. The probability that a tree survived given it was a pine is .6 = 60%. The probability that a tree survived given it was an oak is .75 = 75%. According to this sample, the oaks were more likely survive than the pines.
