This is a right angle triangle
So we can use the tangent
tan x = 5/20
tan x= 0.25
x=tan^-1 (0.25)
x= 14.04 degrees
So yes you're correct
It would be 2u3+4u2-2u-4u2-8u+4= 2u3-10u+4
Answer:
a, -b
Step-by-step explanation:
When x is a, the function becomes

as you see, a-a is 0, and as your whole function is multiplied by this, it makes it 0.

As you see -b+b is 0, and once again, this would make the whole function 0.
Answer:
I think it's 9:50
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
since 5 is constant so you can take it out from the summation