Answer:
11/12, 3/4, 5/8, 9/20 (from smallest to biggest)
56x^2+6x-36 bc of the FOIL METHOD which goes multiple first term, outer terms, inner terms, and last terms
The slope would be 3/5 because you add 3X to 30 to cancel it out and get the Y by itself. Then you have to divide by 5 to completely isolate the Y. Since 3 is not divisible by 5 you are left with 3/5 as your slope.
The first equation is given to determine A.
cos A = 2/5
A = cos⁻¹(2/5) = 66.42°
Now that we know A, we use this value to the second equation.
4 + 4tan²A = 4 +24.996 4tan²(66.42°) = 24.996 ≈ <em>25</em>
1
Step-by-step explanation:
cos 2x + 2 sin²x
= (1 - 2 sin²x) + 2 sin²x
= 1 - 2 sin²x + 2 sin²x
= 1
