The first thing you should see in this case is that the triangles are proportional.
We have then that:
((a) / (c)) = ((d) / (a))
Step 1:
Go a multiplying:
((a) / (c)) * (a) = (d)
Step 2:
Pass c multiplying:
(a) * (a) = (d) * (c)
Step 3:
Same basis, exponents are added:
a ^ (1 + 1) = (d) * (c)
Step 4:
a ^ 2 = c * d
Finally
((a) / (c)) = ((d) / (a)) -------> a ^ 2 = c * d
Answer:
5. x =6 | 6. x = 7 | 7. x = 35
Step-by-step explanation:
5. 8/12 = x/9 | 72 = 12x | x = 6
6. 10/5 = 4.5/x | 45 = 5x | x = 7
7. 12/18 = x+1/24 | 12x+12 = 432 | x = 35
The answer is A if correct
Answer:
Isn't this supposed to be a science question
