Answer:
Step-by-step explanation:
The theoretical probability of drawing a red marble is 600/1500
= 2/5 or 40%
So in a draw of 100 you would expect about 40 red marbles to be drawn.
The average of th first 10 counts is 35 which is 5 lower than the expected value.
I would say there is something fishy with this as they are consistently below the 40 .
Answer:
Use y + x = 3 and solve for either x or y.
Step-by-step explanation:
Substitution is a method to solve a system of equations by substituting an expression from one equation into the other.
To begin, first solve one equation by isolating for one variable. Choose the equation which will have the least number of steps to do so.
y + x = 3 can be solve for x or y by subtracting the other variable. Since this only requires one step use this equation. Either variable can be used.
Answer: think the answer is (37.7)
Let a be the constant the quadratic term
y = ax²
32 = a(2)²
a = 8
Using the same method for each pair of x and y, we can confirm that the value of a is 8.
The answer is A.