2 years ago

HELP ASAP FOR BRAINLIEST

Mathematics

2 answers:

vfiekz [6]2 years ago

8 0

Answer:

It is the first ONE

Step-by-step explanation:

62+57=119

I hope this helps

natka813 [3]2 years ago

4 0

Answer:

119 degrees

Step-by-step explanation:

The measure of EAC is 119 because 62 + 57 = 119.

Then, EAC and BAD are vertical angles, so they are equal.

Therefore, BAD = 119 degrees

You might be interested in

Please help it’s lines

JulijaS [17]

I think the answer is c, 88
Hope this helps :)

6 0

3 years ago

Skyler goes to a school which has 1000 students in it. She asks 40 random students whether they like the new 8.30am start to the

fenix001 [56]

Answer:

100/40=25

25*30=750

so 750 students would dislike the new starting time.

I really hope this was correct and helpful. I tried my best.

7 0

3 years ago

The experimental probability of getting a 6 on a number cube is StartFraction 7 over 40 EndFraction. Which is true about the eve

Svetradugi [14.3K]

Answer:

The number 6 came up 7 times out of a total of 40 trials.

Step-by-step explanation:

took the test

7 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