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3 years ago

NEED HELP ASAP!! (15 points)

Mathematics

1 answer:

LiRa [457]3 years ago

3 0

Answer:

Step-by-step explanation:

a b c

13 10 z

169 100 z 269 16.4 hope this help's

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How do I estimate the square root and round to the nearest integer?

Troyanec [42]

The square root of a number $y$ is a number $x$ such that $x^2=y$

So, if a number is a perfect square, its square root is an integer. For example, the square root of 25 is 5, because $5^2=25$ .

If a number is not a perfect square, its square root is not an integer, which means that it is an irrational number, included between two integers.

If you want to find these two integers, you need to find two (consecutive) integers such that the first is "not enough", whereas the second is "too much".

Here's an example, suppose we want to find the square root of 20. We try some integers:

$\left.\begin{array}{cc}1^2 = 1 & \text{Not Enough}\\2^2 = 4 & \text{Not Enough}\\3^2 = 9 & \text{Not Enough}\\4^2 = 16 & \text{Not Enough}\\5^2 =25 & \text{Too Much}\end{array}\right.$

So, when we square 4 is slightly less than 20, and when we square 5 is slightly more than 20. This means that there must exist a number between 4 and 5 that, when squared, is exactly 20.

So, for sure $4 < \sqrt{20} < 5$

In order to round to the nearest integer, we consider that 4^2=16 was 4 units away from the goal (20), while 5^2=25 was 5 units away from the goal. So, 4^2 is nearest to the goal than 5^2, and so we round

$\sqrt{20}\approx 4$

For the record, we have

$\sqrt{20} \approx 4.472135955\ldots$

so our approximation was correct.

3 0

3 years ago

Sorry, I _____ using the computer yet.

Ipatiy [6.2K]

Option A I haven’t finished using the computer yet.

5 0

2 years ago

Read 2 more answers

Summation notation help!!!!

solniwko [45]

3 is always on the numerator. It is not effected by a power. The answer has to be something that leaves the numerator alone. That means that B is not correct.

The answer is going to be something that makes the denominator 1 when n = 1. That's going to be the answer to the question, because the first term in the sequence is just 3. The denominator must be 1. (not zero).

D is not the answer, because 3/5^1 = 3/5, so D is wrong.

A is not going to get us anywhere either. 3/5^(1 + 1) = 3/5^2 = 3/25 which is not the first term.

The only choice we have left is C. It must be the answer. 3/5^(1 - 1) = 3/5^0 = 3/1 = 3. There's your answer. Note anything raised to the zero power = 1.

4 0

4 years ago

Who got insta gramm I need help with my assignments I’ll pay u 50$

kondaur [170]

Answer:

what's the question i could help you no need to pay.

3 0

3 years ago

PLZZZZ HELPP ASAP!!! In a board game, you must roll two 6-sided number cubes. You can only start the game if you roll a 3 on at

Lana71 [14]

Hey there!

You should not expect more than 34 times to be favorable, because favorable outcomes are about 28% of outcomes, and 28% of 100 is 28, which is less than 34.

6/21 outcomes will be favorable.

Here is a list of all possible out comes:

1 - 1

1 - 2

1 - 3

1 - 4

1 - 5

1 - 6

2 - 2

2 - 3

2 - 4

2 - 5

2 - 6

3 - 3

3 - 4

3 - 5

3 - 6

4 - 4

4 - 5

4 - 6

5 - 5

5 - 6

6 - 6

The underlined ones have one or two 3's in their outcome. There are 21 outcomes total, and 6 of them have 3's in them. We will find the percentage by doing 6/21 = .286, or 28.6%. This means that for every 100 outcomes, you should expect about 29 of them to be favorable.

I hope it helps and have an amazing day! You've got this!

5 0

3 years ago