It is a good pic, good quality and all that
Answer: should be A: 1.75 hours
Step-by-step explanation: divide 28/16 to give you 7/4, then you should turn this into a decimal which gives you 1.75
We are given

Firstly, we will simplify left side
and we will check whether it is equal to right side
Left side:
Let's assume y left side expression

now, we can take cos on both sides

we can simplify it

Right side:
Let's assume y left side expression

Multiply both sides by -1

now, we can take cos on both sides

we can simplify it


we can see that
both sides cos(y) value is different
so, this is FALSE.........Answer