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3 years ago

What is (3 − 5i) − (-2 − 5i)?

1 answer:

vladimir1956 [14]3 years ago

8 0

your answer is 5 bc you want to rearrange the numbers like this (5i - 5i) - (3 -(-2)) so (5i - 5i)= 0 and 3 - (-2) is 5

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SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!

tresset_1 [31]

Old. new
100%. 45%
x. 42
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8 0

3 years ago

In a certain lottery, you must select 5 numbers (in any order) out of 26 correctly to win. a. How many ways can 5 numbers be

Step2247 [10]

Answer:

a. 7893600

$b.\ \dfrac{1}{26}$

Step-by-step explanation:

Given that there are 26 numbers out of which 5 numbers are to be chosen.

Here repetition is not allowed.

For each of the 5 cases, the total number of possibilities will keep on decreasing by 1.

1st case, number of possibilities = 26

2nd case, number of possibilities = 25

3rd case, number of possibilities = 24

4th case, number of possibilities = 23

5th case, number of possibilities = 22

a. Total number of possibilities = 26 $\times$ 25 $\times$ 24 $\times$ 23 $\times$ 22 = <em>7893600</em>

b. Probability of winning by choosing one number:

Formula for probability of an event E can be observed as: $P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

Number of favorable cases = 1

Total number of cases = 26

So, required probability:

$P(E) = \dfrac{1}{26}$

So, the answers are:

a. 7893600

$b.\ \dfrac{1}{26}$

5 0

3 years ago

HELP 100 POINTS PLEASE

Ymorist [56]

w o w 100 points! t h a n k s :D

3 0

3 years ago

Read 2 more answers

Given that a card dealer hands you a spade, what is the probability that it is the Jack of Spades?

Olenka [21]

There are 13 spades. 1/13
________

8 0

3 years ago

1_____=1.6_____ What

IrinaK [193]

Answer:

1 mile is 1.6 km

Step-by-step explanation:

I don't know how to explain

6 0

3 years ago