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3 years ago

What number is this 5 x 10 ^2 + 3

Mathematics

2 answers:

butalik [34]3 years ago

5 0

Answer:

503 is the answer

Step-by-step explanation:

If you use Pemdos you have to start by doing the exponent then you multiply then after that you will have to do addition and that is how you get your answer

Mekhanik [1.2K]3 years ago

5 0

Answer:

503

Step-by-step explanation:

Ok, to tackle this problem we are going to take it section by section. First what we are going to do is apply PEMDAS (Parentheses, Exponent, Multiplication, Divison, Addition Subtarction) to this probelm and solev in taht order.

We see that the 10 has an exponnet of 2, so really this is just saying 10 to the power of 2, or 100.

Then we would solve the rest of the equation.

5(100)+3

And we get an answer of 503

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1 year ago

Find the variance of the following data. Round your answer to one decimal place. x 1 2 3 4 5 P(X=x) 0.3 0.2 0.2 0.1 0.2

Reptile [31]

The variance of a distribution is the square of the standard deviation

The variance of the data is 2.2

<h3>How to calculate the variance</h3>

Start by calculating the expected value using:

$E(x) = \sum x* P(x)$

So, we have:

$E(x) = 1 * 0.3 + 2* 0.2 +3 * 0.2 + 4 * 0.1 + 5 * 0.2$

This gives

$E(x) = 2.7$

Next, calculate E(x^2) using:

$E(x^2) = \sum x^2* P(x)$

So, we have:

$E(x^2) = 1^2 * 0.3 + 2^2* 0.2 +3^2 * 0.2 + 4^2 * 0.1 + 5^2 * 0.2$

$E(x^2) = 9.5$

The variance is then calculated as:

$Var(x) = E(x^2) - (E(x))^2$

So, we have:

$Var(x) = 9.5 - 2.7^2$

$Var(x) = 2.21$

Approximate

$Var(x) = 2.2$

Hence, the variance of the data is 2.2

Read more about variance at:

brainly.com/question/15858152

4 0

2 years ago

jack has a bag of fruits if he randomly selects a piece of fruit from the bag it is likely to be an apple what is a possible tha

denpristay [2]

Answer:

So far we know Jack has a bag of fruits and he if he randomly picks up a fruit from he will most likely get an apple. From this, we know that the percentage of an apple being picked is at least above 50%. And since it is likely we know it could be close to a 70 : 30 ratio.

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3 years ago

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Mrrafil [7]

Answer:

Step-by-step explanation:

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