Scalene I think. Sorry it's been forever but and equilateral triangles sides are all, well, equal and an Isosceles triangle has only 2 sides the same length.
Alright! In order to solve this problem you need to know your keywords:
Sum = To add
Difference = Subtract
Product = To multiply
So! When it asks for the sum of 24 and 7 you add them:
24 + 7 = 31
The difference of 18 and 6:
18 - 6 = 12
The find the product of these two you simply multiply:
12 x 31 = 372!
Answer: Choice B (31, 52)
--------------------------------------
Explanation:
To go from the point (1,2) to (4,7) we do two things:
A) Move 3 units to the right
B) Move 5 units up
Applying the scale factor will multiply those movement steps by 10. So instead of "3 units to the right" we'll go "30 units to the right" since 3*10 = 30. Similarly, we'll move 50 units up instead of 5 (5*10 = 50)
So if we start at (1,2) and move 30 units to the right and 50 units up, then we'll land on (31, 52) which is the image point for the preimage (4,7)
This is why the answer is choice B
-------------
Note: We can alternatively shift both initial points to the left 1 and down 2 so that (1,2) lands on the origin (0,0). That means (4,7) turns into (3,5). Apply the scale factor through multiplying both coordinates by 10. This works only because the reference point is the origin. We end up with (30,50). Now undo the "left 1 and down 2" to "move right 1, up 2" and we arrive at (31,52) which is the same answer as before. So this is further confirmation that the answer is choice B
I would say C, but not sure :)
