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ra1l [238]
3 years ago
12

How do you do this and what is the answer

Mathematics
1 answer:
Talja [164]3 years ago
6 0
We know opposite angles in the parallelogram is congruent:

let x to be the unknown angle:

 360=2(110)+2x

360=220+2x

140=2x

x=70

ECF is also 110 because of parallel lines and corresponding angles:




110+x+y=180

110+30+y=180

y=40

so DAE is 40





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The drawing below (not to scale) shows a running track. The ends are semicircles. The distance between the two inner parallel st
aleksklad [387]
We are looking for the inner perimeter of the track. Since there are two semicircles, these mix to form one full circle so we can use the formula to find the circumference of the circle with a diameter of 60 m, which was given to us. With a diameter of 60m, the radius will be 30m. Now we can solve this problem.
C = 2πr
C = 2π(30)
C = 60π
The semicircle ends of the track are a distance of 60π m, and now we just need to add the lengths of the inner track which are 100 m each. So:
P = 60π + 100m + 100m
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4 0
3 years ago
What type of graph would best show the growth in the numbers of people owning cell phones from 2000 to 2007?
AlekseyPX
The graph that would easily allow us to see the increase or decrease of persons or individuals owning cellphone/s from 2000 to 2007, we could use bar graph. This bar graph represents the grouped data in rectangles and the number in y-axis would be shown to differ through the lengths of the bars. 
5 0
3 years ago
SOMEONE PLEASE HELP ASAP!
rjkz [21]

Answer:

-5.995

Step-by-step explanation:

3 0
3 years ago
Step by step please -- algerbra 2<br><br> w(n) = 4n +2 ; find w(3n)
viva [34]

Answer:

12n+2

Step-by-step explanation:

w(n)=4n+2

w(3n)=4(3n)+2

w(3n)=12n+2

4 0
2 years ago
Mell is twice as old as Jerry. If 16 is subtracted from Mell’s age and 16 is added to Jerry’s age, their ages will be equal. Wha
irga5000 [103]

Answer:


Step-by-step explanation:

Let J = Jerry's age

Let M = Mary's age = 2J

 

M - 16 = J + 16

 

Substitute 2J for Mary's age

 

2J - 16 = J + 16

2J - J - 16 = 16

J = 16 + 16

J = 32

 

Jerry is 32.

Mary is twice as old as Jerry.

Mary is 2(32) = 64

3 0
3 years ago
Read 2 more answers
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