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Ilia_Sergeevich [38]
3 years ago
10

2.2.2 checkup: practice problems

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

1. 60 degrees

2. 50 degrees

4. 49 degrees

5. 26 degrees

Step-by-step explanation:

The sum of the measures of the angles of a triangle is 180 degrees.

1.

x + 80 + 40 = 180

x + 120 = 180

x = 60

2.

x + 75 + 55 = 180

x + 130 = 180

x = 50

4.

x + 90 + 41 = 180

x + 131 = 180

x = 49

5.

x + 81 + 73 = 180

x + 154 = 180

x = 26

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Please help thanks very very much.
xenn [34]
Here u go 1.d 2.c I think 3.b
3 0
3 years ago
PLZZZZZ HURRY WILL GIVE BRAINLIEST!!!!
Andreas93 [3]

Answer:

Option B is right answer.

Yes, because both figures are rectangles and all rectangles are similar.

3 0
3 years ago
Read 2 more answers
One of the same side angles of two parallel lines is five times smaller than the other one. Find the measures of these two angle
shutvik [7]

Answer:

30 and 150

Step-by-step explanation:

Whether these are same side interior or same side exterior, the sum of them is 180 when the angles are on the same side of a transversal that cuts a pair of parallel lines.  Let's call the angles A and B.  If angle A is 5 times smaller than angle B, then angle B is 5 times larger than angle A.  So the angles are x and 5x.  They are supplementary so

x + 5x = 180 and

6x = 180 so

x = 30 and 5(30) = 150

7 0
3 years ago
The sum of a number and twice the other number is 15 . If the difference of the two numbers is 3 ,find the numbers
Temka [501]

Answer:

6 and 3

Step-by-step explanation:

6 x 2 = 12 + 3 = 15

6-3 = 3

Please mark brainliest only need one more

3 0
4 years ago
How do you find the rate of change
olga_2 [115]
If it's for a graph then I believe you just find the slope which you can do by taking two points and plugging them into this equation y-y
/
X-X

Example: (2, 4) and (6, 7) the first number is always x and the second is always y so if you plug those in the equation would look like this....

4-7
/
2-6

That would end up being
3
- ---- aka the rate of change
4


P.s. The slash and the four dotted lines together means division. Hope this helps
6 0
3 years ago
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