Question writer: it's customary to keep the degree sign off of the variable names in trig.
sin y = s/8
tan y = s/t
tan y = sin y / cos y
cos y = sin y / tan y
cos y = (s/8) / (s/t) = (s/8) × (t/s) = t/8
Answer: cos y = t/8, third choice
Answer:
$435
Step-by-step explanation:
a. 40m+35
b. 40(10)+35
=400+35
= $435
hope it's correct
To answer this question, we will use the sine law which is illustrated in the attached image.
We are given that:The distance from school to library = a
∠A = 32
∠B = 110
b = 2.2
Substitute with the givens in the relation of the sine law to get a as follows:(sin 32) / (a) = (sin 110) / (2.2)
a = (2.2 sin 32) / (sin 110)
distance from school to library = a = 1.2406 mi
Based on the above calculations, the best choice would be:B. 1.2 mi