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3 years ago

Reasoning can you name a real number that is represented by √-36? Explain

Mathematics

2 answers:

jekas [21]3 years ago

8 0

Your question has been heard loud and clear

√-36 is by no means a real number. This is because square roots can only be positive in nature.

Eg: -2*-2 = 4 and 2*2 = 4 , so √4 = -2 or 2 but √-4 doesnt exist.

So , √-36 also does not exist while √36 exists.

√-36 , we can however represent it as an imaginary number as 36i

Thank you

alex41 [277]3 years ago

4 0

Square root of - does not exist in the set of real numbers

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g A bowl contains 5 white balls, 10 red balls, and 15 blue balls. You are to randomly select two balls without replacement. You

qaws [65]

We want to find the probability of getting a red ball in our first draw, given that in the second draw we got a white ball.

We will get P = 0.345

We know that the bowl has:

5 white balls
10 red balls
15 blue balls.

For a total of 30 balls.

We draw a ball and we store it.

Then we draw another ball and we see that it is a white ball.

We want to get the probability that the first ball was red.

The only thing we know, is that one of the white balls can be taken out of the sample space, because we can only draw it second if we did not draw it on the first attempt.

Then we can think that we have:

4 white balls.
10 red balls
15 blue balls.

For a total of 29 balls.

Then the probability of getting a red one is just the quotient between the number of red balls and the total number of balls, we will get:

P = 10/29 = 0.345

If you want to learn more, you can read:

brainly.com/question/11234923

4 0

3 years ago

You are playing a game of Scrabble and have the 5 A tiles, 3 E tiles, 1 Z tile, 2 M tiles, 3 L tiles, and 1 Y tile to choose fro

BigorU [14]

When calculating probability, the easiest thing to do is first count how many things there are to choose from.

5 + 3 + 1 + 2 + 3 + 1 = 15 Also, there are 3 E tiles, and 1 Y tile. 3 + 1 = 4

The probability of you drawing a E or Y tile is 4 / 15

7 0

4 years ago

Will mark Brainliest if someone can help me!!!!! (Idk if Prinicipal is right 2-5)

Talja [164]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$1500\\ r=rate\to r\%\to \frac{r}{100}\dotfill &0.04\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{annually, thus once} \end{array}\dotfill &1\\ t=years\dotfill &1,2,3,4,5 \end{cases}$

$\bf A=1500\left(1+\frac{0.04}{1}\right)^{1\cdot 1}\implies A=1500(1.04)^1\implies A\approx 1560\\\\\\A=1500\left(1+\frac{0.04}{1}\right)^{1\cdot 2}\implies A=1500(1.04)^2\implies A\approx 1622.4\\\\\\A=1500\left(1+\frac{0.04}{1}\right)^{1\cdot 3}\implies A=1500(1.04)^3\implies A\approx 1687.3\\\\\\A=1500\left(1+\frac{0.04}{1}\right)^{1\cdot 4}\implies A=1500(1.04)^4\implies A\approx 1754.79\\\\\\A=1500\left(1+\frac{0.04}{1}\right)^{1\cdot 5}\implies A=1500(1.04)^5\implies A\approx 1824.98$

6 0

3 years ago

Penny is going to fly her plane to her sister's house, which is 544.32 miles away. Penny's airplane flies at an average speed of

Sedbober [7]

Answer:

0.81 hour

Step-by-step explanation:

Given data

Distance= 544.32 miles

Speed= 672 miles per hour.

We know that

Speed= distance/time

Substitute

672= 544.32/time

cross multiply

time*672= 544.32

time= 544.32/672

time= 0.81 hour

3 0

3 years ago

The circumference of a circle is equal to n times its diameter. Estimate the circumference of a round swimming pool that has a d

sdas [7]

Answer: An estimate done quickly: The circumference is about 75 ft.

Step-by-step explanation:

Round π to 3, and 24 to 25. 3 times 25 is 75

A more exact value would be 75.36

3.14 × 24 = 75.36

5 0

3 years ago