Again, nice problem. These are not super easy. You need to imagine the triangles in the figure and relate sides.
For instance: ADC, its hypotenuse is 15
For ABC, it is 20,
so 20/15 is the ratio between both triangles. Now let's choose the side with 'x'
x is one side of ADC, the corresponding side in ABC is 15 (the second longest sides). You need to rotate the triangles, etc ... That's the tricky part :)
So:
20/15 =15/x ----> x = 15*15/20 = 225/20 = 45/4
Which is C
Not sure whether it's too late to help you though!!!!
Also notice that it's kind of a product rule:
x * 20 = 15 * 15
I am sure the book explains a short way of getting to this equation, like sides opposite, blah blah, but what i told you is the reason. You asked for understanding it! Best luck!
Answer: -6
Step-by-step explanation:
1) In order to solve the equation n/6 = -11.9, you must
multiply by 6.
2)

3)

4)

5)
Answer:
2
Step-by-step explanation:
x=2 so 2×2=4
(mark me as brainlest)
Answer:
H= 23
Step-by-step explanation:
92 divided by 4 will give you 23