Answer:
<h2>x = -6</h2>
Step-by-step explanation:

Answer:
Did you attached an image? I can't see it
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given

Required
Use the expression to prove a trigonometry identity
The given expression is not complete until it is written as:

Going by the Pythagoras theorem, we can assume the following.
- a = Opposite
- b = Adjacent
- r = Hypothenuse
So, we have:


Having said that:
The expression can be further simplified as:

Substitute values for sin and cos
becomes

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. If you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.
4x - y = 2
y = 4x
and 4x + y = 6
As all three of their gradients have been inverted (-1/m), meaning they are perpendicular.