Help with math I have to have 20 characters or more to ask question...
1 answer:
Answer:
x=
Step-by-step explanation:
First, we need to solve the angle inside the triangle. That would be 55+40+angle measure=180
angle measure=85°
Now that we know that, we can solve for x by setting 85-3x-18 equal to 180° because these two values form a linear pair which is 180°.
Let's use some simple algebra to solve for x:
85-3x-18=180
67-3x=180
-3x=113
x= or about -37.67
Hope this helps!! :)
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Answer:
and
Step-by-step explanation:
To find the max points we need to take the derivative of the function and then find the critical values.
First we take the derivative:
Now we need to find when f'(x)=0 to find the critical values.
The critical values will be
for any integer n
between 0 and 2 pi, the critical values will be
We can determine if these are minimums or maximums by using the second derivative test.
So we need to take the second derivative;
We need to see if the second derivative is positive or negative to determine if it is a max or min.
Since the second derivative is negative at
and
we know both of those are the x-values of maximums.