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zloy xaker [14]
2 years ago
5

I need help sorry for bothering everyone.

Mathematics
2 answers:
evablogger [386]2 years ago
6 0

Step-by-step explanation:

We know that:

  • m\parallel n
  • m\angle2=60\°
  • m\angle1=m\angle3;m\angle2=m\angle4;m\angle5=m\angle7;m\angle6=m\angle8.; because they are opposite angles.
  • Also, m\angle3=m\angle5; because they are alternate interior angles.
  • We can see that m\angle1+m\angle2=180; because they are supplementary angles and they are on a straight angle.

So, based on those deductions:

m\angle1+m\angle2=180\\m\angle1+60=180\\m\angle1=180-60\\m\angle1=120

Then,

m\angle1=m\angle3\\m\angle3=120=m\angle5=m\angle7

All these angles are the same, because they are opposite (1 and 3), alternate interior (5 and 5), and opposite (5 and 7).

Therefore, m\angle7=120\°

Paladinen [302]2 years ago
3 0

Answer:

Look at the picture down below :)))

Step-by-step explanation:

I just took the test and I got the correct answers, hope this helps!

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For an analysis of variance, if the between-group estimate of the population variance is 30, and the within-group estimate is 25
borishaifa [10]

Answer:

1.2

Step-by-step explanation:

We have given the variance between - group estimate is = 30

And the variance within - group estimate is =25

Now we have to calculate the F ratio

F ratio is defined as the ratio of variance between the group and variance within the group

So F ratio =\frac{30}{25}=1.2

So for the given variance F ratio will be 1.2

8 0
2 years ago
For the equation 2(4x+10)=8x+k, which value of K will create an equation with infinitely many solutions?
saw5 [17]

Answer:

For given linear equation having infinite many solution the value of k is 20  .

Step-by-step explanation:

Given as :

The equation is 2 (4 x + 10) = 8 x + k

For infinite many solution , if the variable cancel out to zero then it will have infinite many solutions

<u>So, from given linear equation</u>

i.e 2 (4 x + 10) = 8 x + k

Or, 2 × 4 x + 2 × 10 = 8 x + k

Or, 8 x + 2 × 10 = 8 x + k

Or, 8 x + 20 = 8 x + k

Or, k + (8 x - 8 x) = 20

Or, k + 0 = 20

∴   k = 20

So, The vale of k  = 20

Hence, For given linear equation having infinite many solution the value of k is 20  . Answer

3 0
3 years ago
Which of the following expressions is equal to 1 divided by 16
Mama L [17]

Answer:

8

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which is bigger 0.17 or 0.165 meters
zavuch27 [327]
Your numbers are .17 and .165 meters

Let me explain each digit value:

Lets start with .17

Decimals are like whole numbers where each placement has a digit value

.1 is the tenths place

.07 is the hundredths place

Lets turn to .165

.1 is the tenths place

.06 is the hundredths place

.005 is the thousandths place

When seeing which decimal is larger, go along the tenths place and move along.


So as you can see
, .17 and .165 start with .1 so you can't see which is bigger by this. Now move on to the next digit. Which is larger? .17 or .16? As you should know, 7 is bigger than 6 so that means .17 is larger

Answer: .17 meters is larger than .165 meters
3 0
3 years ago
Read 2 more answers
The length of a rectangle is 4 less than twice the width. If the perimeter of the rectangle is 130, find the length of the recta
Alchen [17]

Answer:

Let L be the length of the rectangle and w be the width of the rectangle.

"The lenght of a rectangle is one less than twice the width" means L=2W-1

Using perimeter formula of a rectangle which is P=2(L+W) you have:

P=2(L+W)

130=2(2W-1+W)

Solve equation above to find W

130=2(3W-1)

130=6W-2

130+2=6W

132=6W

W=22

From here you find L=2W-1=2x22-1=43

Only thing left is to find area A=LxW

4 0
3 years ago
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