Answer:
The correct answer is C
Step-by-step explanation:
In order to find the y-intercept, you need to first solve the inequality for y.
5x - 3y ≤ 15
-3y ≤ -5x + 15
y ≥ 5/3x - 5
Now we look at the constant at the end. Since that constant is -5, we know C to be the answer.
Answer:
The point of their intersection is (-3,-5)
4x+1=6x-2
4x+3=6
3=2x
3/2=2x/2, because you have to divide 2 from both sides
X=3/2
E(x) = Summation xp(x) = 0(0.8) + 1(0.14) + 2(0.03) + 3(0.02) + 4(0.01) + 5(0) + 6(0) = 0.14 + 0.06 + 0.06 + 0.04 = 0.3
Variance = [(0 - 0.3)^2 * 0.8 + (1 - 0.3)^2 * 0.14 + (2 - 0.3)^2 * 0.03 + (3 - 0.3)^2 * 0.02 + (4 - 0.3)^2 * 0.01 + (5 - 0.3)^2 * 0 + (6 - 0.3)^2 * 0] = 0.072 + 0.0686 + 0.0867 + 0.1458 + 0.1369 = 0.51