Answer:
the increase is by 2
Step-by-step explanation:
You can add 17 plus 2 or subtract 17 from 19.
Answer:
It is positive because negatives cancel out each other
Step-by-step explanation:
So I labeled it as (1,7) as A, (-5,7) as B, and (-5,3) as C.So A is (0,5) and B as (-3,5) and then C as (-3,3).I think that would be correct.
Answer: 49 cm² and 16 cm²
Step-by-step explanation:
1. If the triangles are similar and the ratio of the perimeter os 4:7, then the areas are in the following ratio:

2. You know that the sum of their areas is 65 cm², then, you can calculate the area of the larger triangle as following:

3. The area of the smaller triangle is:

Answer:
The mean would be 14.4 hours.
Step-by-step explanation:
In order to find the mean, or average, of the numbers, you would add all the numbers together.
17 + 15 +14 + 14 + 12 which equals 72
Then, you take the total which is 72, and divide it by how many numbers you added together which is 5.
72/5 = 14.4