Answer:
Second answer
Step-by-step explanation:
We are given
and
. What we have to find are
and
.
First, convert
to
via trigonometric identity. That gives us a new equation in form of
:

Multiply
both sides to get rid of the denominator.

Then divide both sides by -3 to get
.
Hence,
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Next, to find
, convert it to
via trigonometric identity. Then we have to convert
to
via another trigonometric identity. That gives us:

It seems that we do not know what
is but we can find it by using the identity
for
.
From
then
.
Therefore:

Then use the surd property to evaluate the square root.
Hence, 
Now that we know what
is. We can evaluate
which is another form or identity of
.
From the boxed values of
and
:-

Then rationalize the value by multiplying both numerator and denominator with the denominator.

Hence, 
Therefore, the second choice is the answer.
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Summary


Let me know in the comment if you have any questions regarding this question or for clarification! Hope this helps as well.
180=(12x+8)+(8x+12)
180=20+20x
-20. -20
160=20x
20. 20
X=8
B)8
Answer:
The slope is zero. Since both coordinates have the y-value of -1, they are on the same line on the graph and form a horizontal line with a slope of zero. (a straight horizontal line)
Step-by-step explanation:
use the formula
(y2-y1)/(x2-x1)
to calculate the slope using 2 points
so where (x1,y1) (x2,y2) can be subsituted
so putting it in the formula ...
(-1-(-1))/(7-10)=
0/-3=0
86.56 so we can do 6(x.3) by .(57)2