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Leya [2.2K]
3 years ago
11

I’m very confused, my teacher did not explain well.

Mathematics
1 answer:
Sauron [17]3 years ago
7 0
In order for two triangles to be considered as similar, they must be
- equiangular (all angles equal)
- all sides equal (sss)
- if two pairs of two sides are in proportion or are matching, and one included angle is equal



Q4a) yes, because all the angles are equal (equiangular)


b) yes, because all sides are in matching ratio (so 10/5 is 2, 6/3 is 2 and 8/4 is 2; so they are in matching ratios)


c) yes, because if you plus 60 and 70, you get 130. Minus 180 and 130, you get 50. So, in both triangles the angles will be 60,70 and 50; so they're equiangular
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What number should be added to both sides of the equation to complete the square?
adelina 88 [10]
X2 - 10x = 7

You move the constant to the right which looks like: - 10x = 7 - 2

- 10x = 5

Then you divide both side by -10. The answer is:

X = -1/2 OR x = -0.5

8 0
3 years ago
Help please ! B C or D
Gwar [14]
The answer to this is D


7 0
3 years ago
Please help I need the answer fast !
Otrada [13]

Answer:

To answer this item, we add up all the scores and divide the sum by the total number of quizzes.  

                   0: 0 quizzes

                   1 : 1 quiz                     total  : 1

                   2: 3 quizzes                total : 6  

                   3: 4 quizzes                total : 12

                    4: 4 quizzes               total : 16  

                   5: 1 quiz                      total : 1

There are 13 quizzes and the total score is 36. Dividing the total score by the total number of quizzes will give us a final answer of 2.77.

Step-by-step explanation:

3 0
2 years ago
Find the value of cos W rounded to the nearest hundredth, if necessary,
Aliun [14]

Answer:

cos W = 7/15

Step-by-step explanation:

Mathematically the cosine of an angle is the ratio of the adjacent to the hypotenuse side

From the diagram given, 14 is adjacent to vertex w and 30 faces the right angle which makes it the hypotenuse

So, we have it that;

cos W = 14/30

cos W = 7/15

4 0
3 years ago
Helppp meeee plssss with this pls
Darina [25.2K]
It’s the letter “B” I think
8 0
3 years ago
Read 2 more answers
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