Factor each completely. 10a² - 9a + 2
1 answer:
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Answer:
sec(- θ ) = secθ
Step-by-step explanation:
The relationship between sec and cos is
sec x =
Now cos(- x) = cosx
Thus
sec(- θ ) = secθ
Question is not written properly but i think you are looking for the table of given equation y=400-55x. So I will explain about how to get that.
number of hours can't be negative so that means x must be 0 or more.
like x=0,1,2,3,...
we just have to plug these x-values into above equation to find the y-value in order to calculate table.
I will show you calculation for x=2
y=400-55x=400-55*2=400-110=290
so the point in table will be (2,290)
similarly we can find more point and get final table as shown below:
