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3 years ago

Find the perimeter of a rectangle whose dimensions are 15 inches times 8 inches

Mathematics

1 answer:

krok68 [10]3 years ago

5 0

Answer:

Step-by-step explanation:

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How can you find the number of feet in 1 million inches

Fofino [41]

There is exactly 8333.3333 feet in one million inches

7 0

4 years ago

Shahida is 21 years old and Nasreen is 15 years old to Shahida after how many years will Shahida be twice as old as nasreen

guapka [62]

Answer:

27 years

Step-by-step explanation:

21 × 2 = 42

42 - 15 = 27

5 0

3 years ago

16. Solve the linear equation.<br><br> 12x– 2 = 2x + 18

tino4ka555 [31]

Answer:

x=2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

6 0

3 years ago

Read 2 more answers

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

What is special about y coordinate that goes with the x coordinate of 1on a proportional gragh

Rom4ik [11]

Answer:

The first coordinate (usually the x-coordinate) is called the domain and the second (usually the y-coordinate) is called the range. If tou remember from earlier chapters the domain contains values that correspond to the independent variable whereas the range contains values corresponding to the dependent variable.

Step-by-step explanation:

I majored in Mathematics

4 0

3 years ago