Asolid oblique pyramid has a regular pentagonal base. the base has an edge length of 2.16 ft and an area of 8 ft2. angle acb measures 30°.

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4