All categories

3 years ago

What is 2+2 in mathematics

Mathematics

2 answers:

Butoxors [25]3 years ago

6 0

Answer:

Step-by-step explanation:

2+2 is 4 because if you have 2 fingers you just add 2 more and when you look at your hand you'll be raising up only 4 fingers.

Drupady [299]3 years ago

5 0

Let's start with

16-36 = 25-45

If we add 81/4 in both sides

16 - 36 + (81/4) = 25 - 45+ (81/4)

Simplyfing

(4 - (9/2))² = (5 - (9/2))²

Take the square root

4 - (9/2) = 5 - (9/2)

Add 9/2 in both sides

4 - (9/2) + (9/2) = 5 - (9/2) + (9/2)

4 = 5

As we know 2.2 = 4

2.2 = 5

And 2.2 is equal to 2 + 2

2 + 2 = 5

Hope i helped you

You might be interested in

The sum of three consecutive integers is -15.

zhuklara [117]

-18 maybe not to sure

4 0

1 year ago

Read 2 more answers

What value of x is in the solution set of 2x-3 > 11 - 5x?

just olya [345]

2x-3 > 11 - 5x
2x + 5x > 11 + 3
7x > 14
x > 14/7
x > 2

3 0

2 years ago

Read 2 more answers

Here are four digits.

Bogdan [553]

Answer:

A: 357

(1) 9641

Step-by-step explanation:

With A you really just want to go from the smallest number up so it would be the smallest number possible.

<em>EX.</em> 357 vs. 736 357 is smaller

With 1 you have to go from the highest number to lowest number to get the biggest answer possible.

<em>Ex.</em> 9641 vs. 1946 9641 is larger.

3 0

3 years ago

Between what two integer powers of 2 does 2√7 lie?

prisoha [69]

Answer:

Between 5 and 6

Step-by-step explanation:

Integers refer to positive whole numbers.

Firstly, we need to know the value of the surd

By calculating, the value of the surd is 5.29

What this mean is that the surd is between the values of 5 and 6

It is slightly greater than 5 and not up to 6

5 0

2 years ago

A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May

Strike441 [17]

The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

<h3>How to determine the probability?</h3>

The given parameters are:

Sample size, n = 100
Population proportion, p = 82%

Start by calculating the mean:

$\mu = np$

$\mu = 100 * 82\%$

$\mu = 82$

Calculate the standard deviation:

$\sigma = \sqrt{\mu(1 - p)$

$\sigma = \sqrt{82 * (1 - 82\%)$

$\sigma = 3.84$

Within ± 0.02 of the population proportion are:

$x_{min} = 82 * (1 - 0.02) = 80.38$

$x_{max} = 82 * (1 + 0.02) = 83.64$

Calculate the z-scores at these points using:

$z = \frac{x - \mu}{\sigma}$

So, we have:

$z_1 = \frac{80.36 - 82}{3.84} = -0.43$

$z_2 = \frac{83.64 - 82}{3.84} = 0.43$

The probability is then represented as:

P(x ± 0.02) = P(-0.43 < z < 0.43)

Using the z table of probabilities, we have:

P(x ± 0.02) = 0.3328

Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328