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3 years ago

Someone please help me with this math problem fast, worth 50 points.

Mathematics

2 answers:

slavikrds [6]3 years ago

7 0

Answer:

0 + 10i

Step-by-step explanation:

√-100

~Apply radical rule

(√-1)(√100)

~Apply rule of imaginary numbers

√100 i

~Simplify

10i

Best of Luck!

jeka57 [31]3 years ago

6 0

Answer:

$0 + 10i$

Step-by-step explanation:

$\sqrt{ - 100} \\ \sqrt{100} \times \sqrt{ - 1} \\ 10 \times \sqrt{ - 1} \\ 10 \times i \\ 10i$

and since it asks for complex form and there is no real part that's attached, the

final answer is:

$0 + 10i$

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Lewis rolls a number cube and then chooses a card from a set of cards numbered 1 through 5. What is the probability that he will

IceJOKER [234]

Answer:

$\frac{1}{5}=0.2$

Step-by-step explanation:

The general formula for a probability is:

$P=\frac{FavorableEvent}{TotalEvents}$

The favorable events for the cube to fall in a even number are:

2, 4, and 6 ⇒ 3 favorable events

and in the cube the total events are:

1, 2, 3, 4, 5, 6 ⇒ 6 total events

So the probability of rolling an even number in the cube is:

$P=\frac{3}{6}\\\\\\ P=\frac{1}{2}$

Now we do something similar to find the probability to choose a card with an even number.

The favorable events for an even numbered card are:

2, 4 ⇒ 2 favorable events

and the total number of events in the cards is:

1, 2, 3, 4, 5 ⇒ 5 total events

Thus, the probability to choose an even numbered card (according to the probability formula) is:

$P=\frac{2}{5}$

And finally, since we want both things to happen we must multiply both obtained probabilities:

the probability that he will roll an even number and choose an even numbered card:

$P=\frac{1}{2}*\frac{2}{5} \\ \\P=\frac{2}{10} \\\\P=\frac{1}{5} =0.2$

The probability is 1/5 which is equal to 0.2 or 20%

3 0

3 years ago

100 pts+brainliest

Damm [24]

Answer = 688 thousand / 688,000

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Nimfa-mama [501]

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valina [46]

Answer:

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