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erma4kov [3.2K]
3 years ago
6

Which expression is equivalent to (-2+4i)+(1-7i)-(-8+5i) -7i -i 7-8i -9+2i

Mathematics
1 answer:
vichka [17]3 years ago
6 0
7-8i

Add -2+1+8=7
Add 4i-12i= -8i
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A number cube is rolled three times. An outcome is represented by a string of the sort OEE (meaning an odd number on the first r
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The probability of occurrence for the events A, B and C is; 1/4.

<h3>What is the probability of occurrence of.the described events?</h3>

For the first event A in which case, there's no odd number on the first two rolls, the possible events are; EEE and EEO. Consequently, the required probability is;

Event A = 2/8 = 1/4.

For the event B in which case, there's an even number on both the first and last rolls; the possible events are; EEE and EOE. Consequently, the required probability is;

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For the event C in which case, there's an odd number on each of the first two rolls; the possible events are; OOO and OOE. Consequently, the required probability is;

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