Find the angle made by the line joining 5,3 and -1,-3 with the positive direction of x-axis

45°

Step-by-step explanation:

gradient of the line:

Let A (-1,-3) and B (5,3)

tan a = (yB - yA) / (xB - xA) = (3 - -3) / (5 - -1) = 6/6 = 1

--> the angle made by the line and positive direction of x-axis is:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

answer: it actually depends on which is the independent variable and which is the dependent variable. let us say we're looking at a linear equation. y=2x+3. we theoretically could switch the equation to be x=(y-3)/2 and it would be the same line. so either a causes b or it can be that b causes a. so technically the answer is false

step-by-step explanation: