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4 years ago

I need help asap please 19=8+y with workout

Mathematics

1 answer:

Mama L [17]4 years ago

4 0

Answer:

y = 11

Step-by-step explanation:

In most algebraic problems, you need to isolate the variable (by canceling out some other value) to get the answer to do so in this equation, subtract 8 from both sides. Then you get 11 = y

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If it costs $0.15 per square inch for the cardboard label, then what is the cost for plan B?

IceJOKER [234]

Answer:

a box of plan B cost roughly $50.00

it is pretty expensive but you don't need an I.D.

Step-by-step explanation:

6 0

3 years 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

13. Solve: x over 5 =6. X=<br> 6<br> 5<br> 30<br> 1.25

BabaBlast [244]

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let's solve :

$\dfrac{x}{5} = 6$

$\dfrac{x}{5} \times 5 = 6 \times 5$

$x = 30$

value of x = 30

5 0

3 years ago

Read 2 more answers

Solve the inequality<br> 2(4+2х)>5x+5

Gre4nikov [31]

Answer:

3>=3

Step-by-step explanation:

2(4+2x)>=5x+5

distribute the 2: 8+4x>=5x+5

8>=x+5

3>=x

8 0

3 years ago

Read 2 more answers

What is 4.2 converted into a fully reduced fraction?

Monica [59]

Answer:

4 1/5

Step-by-step explanation:

6 0

3 years ago

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