The result of expanding the trigonometry expression  is
 is 
<h3>How to evaluate the expression?</h3>
The expression is given as:

Express  as
 as  .
.
So, we have:

Open the bracket

Express 1 as cos°(Ф)

Hence, the result of expanding the trigonometry expression  is
 is 
Read more about trigonometry expressions at:
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Answer:

Step-by-step explanation:
The slope-intercept form of an equation of a line:

Parallel lines have the same slope. Therefore if given line is

then the slope of our line is  .
.
We have the equation:

The line passes through (-1, -7). Put the coordinsted pf the point to the equation:

 <em>add 2 to both sides</em>
          <em>add 2 to both sides</em>

Finally:

 
        
             
        
        
        
Y = 5x + 5
y - x = 5
You can use substitution to solve this system. Use y's expression (5x + 5) for y in the second equation to solve for x:
y - x = 5
5x + 5 + x = 5
6x + 5 = 5
6x = 0
x = 0
Substitute your value for x into one of the original equations to y:
y = 5x + 5
y = 5(0) + 5
y = 5
Finally, substitute both values into both original equations to check your work:
5 = 5(0) + 5    -->    5 = 5    <--True
5 - 0 = 5    -->    5 = 5    <--True
Answer:
x = 0
y = 5
        
             
        
        
        
Answer:
y = 5x + 4
Step-by-step explanation:
 The slope always goes before the x and your y-intercept is plus or minus depending on weather it is positive or negative. Your parent function or standard equations) is y = mx + b, so just plug your variable into there.