4 years ago

Pls help me on this question:)

Mathematics

1 answer:

r-ruslan [8.4K]4 years ago

5 0

Answer:

x= 28

Step-by-step explanation:

The angles both sum up to 180°. So, the equation would be: 39+(5x+1)= 180.

Step 1- Add common numbers.

(39+1)+5x= 180

40+5x= 180

Step 2- Subtract 40 to both sides.

40+5x= 180

-40 -40

5x= 140

Step 3- Divide both sides by 5.

5 5

x= 28

You might be interested in

Which of the following is equivalent to (81m6) 1/2?

n200080 [17]

9m to the power of three

3 0

4 years ago

Read 2 more answers

In the 30-60-90 triangle below, side s has a length of and the hypotenuse has a length of

Zepler [3.9K]

Are there any dimensions on the triangle? or is it in terms of s? if so the answer would be 2s/sqrt(3) or you can rationalize the bottom and youd get 2sqrt(3)s/3

6 0

3 years ago

Read 2 more answers

Need help on this question

Aloiza [94]

I hope this helps you

4 0

3 years ago

A researcher has collected the following sample data. The mean of the sample below is 5.

abruzzese [7]

Answer:

The coefficient of variation is 72.66%

Step-by-step explanation:

Data : 3 , 5 , 12 , 3 , 2

We are given that The mean of the sample is 5.

Formula of standard deviation = $\sigma = \sqrt{\frac{\sum(x-\bar{x})^2}{n}$

Substitute the values :

$\sigma = \sqrt{\frac{(3-5)^2+(5-5)^2+(12-5)^2+(3-5)^2+(2-5)^2}{5}}=3.633$

Coefficient of variation= $\frac{\sigma}{\mu} \times 100=\frac{3.633}{5} \times 100 =72.66\%$

Hence The coefficient of variation is 72.66%

8 0

3 years ago

A line passes through the point (-4,3) and has a slope of -5/2

Jlenok [28]

Answer:

y=(-5/2) x -7

Step-by-step explanation:

y=mx+b

m=(-5/2)

To find b:

3=(-5/2)times"x" + b

3=(-5/2)times(-4) + b

3= 10 +b; b=-7

y=(-5/2) x -7

7 0

3 years ago