Answer:
60 degree
Step-by-step explanation:
that sign denotes equilateral triangle.
Answer:

Step-by-step explanation:
Assume that the shadow of an object in this problem is proportional to the height of the object. One can form the following ratio to describe the objects in this problem,

As per the given problem, a (6) foot person casts a (1.7) foot shadow. Therefore, one can form the following ratio,

It is given that there is a lighthouse that has a shadow of (10.2) feet, one is asked to find its height. Use the parameter (x) to represent the unknown; since the ratios are related, one can form a proportion to solve for(x).

Cross products,

Simplify,

Inverse operations,



Bro i need major help right now too but um idek what to do but good luck
Rewrite equation so that it is homogeneous .

Solve characteristic equation:
The solutions to the homogeneous equation are:

Finally you need the constant term in "cy" to equal 'd' to satisfy the particular solution.