Sanjay graphs a quadratic function that has x-intercepts of -3 and 7. Which functions could he have graphed? Check all that apply.
9(1) = 12
• 4x-21
U 9(1) = (x - 3)(x + 7)
(1) = 312 - 12x - 63
9(1) = -(x + 3)(x - 7)
g(x) = 12 + 4x - 21

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

sine

step-by-step explanation:

$15 each

step-by-step explanation:

$45/3 children= $15 each