Answer:
A. triangle 4 and triangle 3.
Step-by-step explanation:
If you look at triangle 4, you can see that it need to be rotated and reflected.
If you look at triangle 3, you can see that it needs to be reflected.
Answer:0.84164
Step-by-step explanation:
Given

we know

Applying this identity we get





Answer:
7
Step-by-step explanation:
49 ÷ 7 = 7
Square root is always dividing by a whole factor :)
D. it represents the product of two rational numbers and is equivalent to an irrational number