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Zarrin [17]
3 years ago
13

What is square root of -98 + 71

Mathematics
1 answer:
rodikova [14]3 years ago
8 0

Answer:

= 5.196 i

Step-by-step explanation:

The problem tells us to find the square root of -98 +71

√(-98 + 71)

= √(-27)

Which is an imaginary number

=√(-3^3)

Lets remember that, √(-1) = i

= i*3√(3)

= 5.196 i

Please see attached image for more information

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Is 8/5 a rational number?
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Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c
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Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X\sim Bin (n,p)

Here

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Now this is a binomial probability distribution

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2 years ago
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3 years ago
A tree is 4<br> is 4.4 feet tall. It is expected to grow by 1 feet per year.
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2 years ago
Jenny drives from Paris to Rochefort, a distance of 483 km. her average speed on the journey is 84 km/h, she leaves at 9:50. Wha
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The correct answer is 3: 35

Explanation:

To calculate at what time Jenny will arrive in Rochefort, the first step is to calculate the approximate time of the trip. Now, to calculate this consider the time of a movement (t) equals to the distance (d) divided by the speed (s), the process is shown below:

t = 483 km / 84 km/h

t = 5.75 hours

In this number 5 refers to the hours and 0.75 represents 45 minutes considering 0.75 x 60 minutes in one hour = 45 minutes. Therefore, the total time from Paris to Rochefort is 5 hours and 45 minutes. Now, to calculate the time of arrival add this result to the time of departure.

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Add the minutes: 50 minutes + 45 minutes =95 minutes

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Minutes: 35 minutes

4 0
3 years ago
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