Answer:
10
Step-by-step explanation:
Answer:
11.4
Step-by-step explanation:
So we know that Triangle ACB is similar to Triangle EFD.
This means that their sides are proportional to each other.
We want to find x or side AB. To do so, we can set up a proportion.
The proportional side to AB is ED. Let's also use BC since we know its value. The proportional side to BC is DF. Thus:

Substitute x for AB, 3.8 for Ed, 15 for BC, and 5 for DF. Thus:

Reduce the right:

Cross multiply:

So, the value of x is 11.4
And we're done!
Answer:
<h2>
1240.4 mm²</h2>
Step-by-step explanation:

Answer: f(-2) = -6
Step-by-step explanation: f(-2) = -2 -4
f(-2) = -6