Use >, < OR = symbols in the blank space in each of the following a) (-3) - (-5) --- (-4) + (-9) b) 71 -2 - 31 --- 71 - 2 +31 c) 39 + (-35) – (58) --- 37 + (-11) - (+26) d) 23 + (-8) – 7--- 9 - 13 + 12

13875138answer:

step-by-step explanation:

use a calculator!

answer:     true

step-by-step explanation:

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.