Positive cosine is first or fourth quadrant. So we don't know the sign of the sine or the tangent.
Everybody's favorite right triangle is 3/4/5 and here we have

So if

then

and

He is 38 kg.
I'll use only the first letters of their names, to make it simpler:
S+L=54.75
S+M=105
M=4L
S+4L=105
105-54.75=4L-L=3L
L=50.25/3=16.75
S=54.75-16.75=38
He has insurance in case of an accident.
Insurance, in legal and financial terms, is a form of risk management, used primarily to protect against the risk of potential financial losses.
Ideally, it is defined as the fair transfer of risk of potential loss from one entity to another in exchange for a reasonable fee. In practice, however, the insurance protection business often results in litigation between the parties concerned.
Generally, it is a contract in which one party agrees to pay for the financial losses of another party as a result of a specified event.
Learn more about insurances in brainly.com/question/25796422
Answer:
17.1
Step-by-step explanation: