You pick a card at random. Without putting the first card back, you pick a second card at
random.
What is the probability of picking an even number and then picking an even number?
Simplify your answer and write it as a fraction or whole number.
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answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: