Answer:
first of all the formula
y = mx+c
where m is slope and c is y-intercept.
now substitute the values-
y = 2x - 5
(for the slope here is 2 and the part where the line intercepts y axis is -5
therefore
y = 2x-5
2x² + 6x - 3 + 2x³ - 3x + 2
Combine like terms
2x³ + 2x² + 6x - 3x - 3 + 2
Final answer:
2x³ + 2x² + 3x - 1
Here it is. You can also use the quadratic equation to find the answer.
Answer:

Step-by-step explanation:
The number of red marbles in the bag is;
.
The number of blue marbles in the bag is;
.
The number of white marbles in the bag is;
.
The total number of marbles in the bag is:
.
The probability of selecting a blue marble is 
We substitute the given information to obtain:

We simplify to obtain:
