Ansolutions is a value that arises from the algebraic method of solving but is NOT a solution of the original

equation.

an infinity many solutions

Step-by-step explanation:

If a system has infinitely many solutions, then the lines overlap at every point. In other words, they're the same exact line! This means that any point on the line is a solution to the system.

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it