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sergejj [24]
3 years ago
11

I NEED ANSWERS(POINTS AND BRAINIEST)

Mathematics
1 answer:
Pie3 years ago
7 0

Answer:

WHAT?

Step-by-step explanation:

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This 2 pls i need help with explanation sum
Nataliya [291]

9514 1404 393

Explanation:

<h3>8.</h3>

An exterior angle is equal to the sum of the remote interior angles. Define ∠PQR = 2q, and ∠QPR = 2p. The purpose of this is to let us use a single character to represent the angle, instead of 4 characters.

The above relation tells us ...

  ∠PRS = ∠PQR +∠QPR = 2q +2p

Then ...

  ∠TRS = (1/2)∠PRS = (1/2)(2q +2p) = q +p

and

  ∠TRS = ∠TQR +∠QTR . . . . . exterior is sum of remote interior

  q +p = (1/2)(2q) +∠QTR . . . . substitute for ∠TRS and ∠TQR

  p = ∠QTR = 1/2(∠QPR) . . . . . subtract q

__

<h3>9.</h3>

For triangle ABC, draw line DE parallel to BC through point A. Put point D on the same side of point A that point B is on the side of the median from vertex A. Then we have congruent alternate interior angles DAB and ABC, as well as EAC and ACB. The angle sum theorem tells you that ...

  ∠DAB +∠BAC +∠CAE = ∠DAE . . . . a straight angle = 180°

Substituting the congruent angles, this gives ...

  ∠ABC +∠BAC +∠ACB = 180° . . . . . the desired relation

4 0
3 years ago
A circular test track for cars has a circumference of 2.7km . A car travels around the track from the southernmost point to the
Galina-37 [17]
This problem is about the difference between distance and displacement.
The distance is how many kilometers has the car covered, the displacement is how far from the original point is the car now, and does not depend on the path followed, but it is the shortest path that connects two points.

a) In this part, they ask you for the distance. From the southernmost to the northernmost point of the circumference, the car has traveled half of the circumference, therefore:
distance = circumference ÷ 2 = 2.7km ÷ 2 = 1.35km

b) In this part, you are asked for the displacement, which in this case is the diameter of the circumference:
displacement = diameter = circumference ÷ π = 2.7km ÷ 3.14 = 0.86km = 860m
5 0
3 years ago
PLEASE HELP ASAP!!! ILL MARK BRAINLIEST!!
ss7ja [257]
The third option
hope it helps
4 0
3 years ago
Read 2 more answers
HELP ASAP I DONT HAVE TIME IT ALSO DETECTS IF ITS RIGHT OR WRONG
storchak [24]

Answer:

9/2*1/6=0.75

Step-by-step explanation:

hope this helped!!!!

5 0
3 years ago
Suppose his airplane flies in still air at a speed of 420 km/h. One day the wind is blowing strongly at 110 km/h towards the nor
riadik2000 [5.3K]
The answer will be 46,200 Hopes this helps. :)
3 0
3 years ago
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