<u>Examining the question:</u>
We are given the expression:

We know from Basic trigonometry that:


<u>Simplifying the expression:</u>
Replacing these values in the given expression, we get:

Since the denominator of both the values in the denominator is the same:

We know that
=
, using the same property:

and we are done!
Answer:
the ammount of tax is $15.
the total price paid is $90.
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
1 / ((n + 1) + 2)³ ≤ 0.001
1 / (n + 3)³ ≤ 0.001
(n + 3)³ ≥ 1000
n + 3 ≥ 10
n ≥ 7
Answer:
Step-by-step explanation:
Angles of Elevation and Depression are used in measuring heights and distances in trigonometric applications using right triangles. These angles are made when we look up or down to view objects. Devices are available to measure angles of elevation and depression. These measured angles can be used in measuring heights and distance which are either tedious or impractical to measure, by modelling the situation into right triangles