Hints on solving trigonometry problems:
If no diagram is given, draw one yourself.
Mark the right angles in the diagram.
Show the sizes of the other angles and the lengths of any lines that are known
Mark the angles or sides you have to calculate.
Consider whether you need to create right triangles by drawing extra lines. For example, divide an isosceles triangle into two congruent right triangles.
Decide whether you will need Pythagorean theorem, sine, cosine or tangent.
Check that your answer is reasonable. The hypotenuse is the longest side in a right triangle.
How to use the tangent ratio to find missing sides or angles?
Example:
Answer:
Step-by-step explanation:
- Our equation is
- Now there are 2 ways you can do this, I'll show you the shortcut
- If you have an equation like this, just take the value in parenthesis and equate it to zero
is the x of the vertex- Put this back into the equation
this is the y
Answer:
A: (-2, 0)
B: (-1, 0)
C: (-1/4, 0)
D: (1/4, 0)
E: (1/2, 0)
F: (1 1/2, 0)
G: (2, 0)
H: (2 3/4, 0)
I: (3 1/2, 0)
Step-by-step explanation:
<em>From the graph we can see that every 4th line from </em><em>0</em><em> is a </em><em>whole unit</em><em>. </em>
<em>I put a </em><em>0</em><em> in place of the </em><em>y value</em><em> for every coordinate because the points don't move neither up nor down.</em>
<span>the entry is made in march to record the sale of the subscriptions would include a: </span><span>Credit to unearned subscription revenue for $900,000
in subscription business model, the customers could pay the subscription within a large time period and it would be impossible to predict the exact date when the revenue should be recorded. Therefore, we should recorded is as 'unearned revenue</span>
Answer:
0.5361
Step-by-step explanation:
Hope this helps :)
