D is going to be the correct answer.
Step-by-step explanation:
it is a right angled triangle so
with reference angle x
perpendicular (p) = 7
hypotenuse (h) = 10
so Now
sin x = p/h
sin x = 7 / 10
x = sin^-1( 7/ 10)
x = 44.42°
Rounding to nearest tenth
= 44°
Answer:
<u>15° E</u>
Step-by-step explanation:
With respect to the position of the student, the tree lies 15 m to the east of it. Hence, the tree's bearing from the student is : <u>15° E</u>
Answer:
Step-by-step explanation:
Recall the trigonometric identity .
Therefore, given , rewrite the left side of the equation:
Subtract from both sides:
Factor out from both terms on the left:
We now have two cases:
Since the problem stipulates that is in the interval , we have:
Recall that square brackets mean inclusive and parentheses mean exclusive. Therefore, .