You can find additive inverse to find integers and their opposites closed under addition.
A simple answer is that any given trapezoid with height h and length of the parallel lines a and b, is half of a parallelogram with an area of (a+b) x h. Since the trapezoid is half of this, it is h(a+b)/2
Answer:
150
Step-by-step explanation:
15*10
Lets get rid of the 0 for now
15*1
That is 15 added to itself 0 times so it is 15
Now lets put the 0 back
and we will get
150
Answer:
62.73° or 1.09 radians
Step-by-step explanation:
SOH CAH TOA
sin = 
, so sin (?) = 
this means that ? = 
or ? = arcsin(), depending on what calculator you have
plugging in or arcsin() into calculator will get you
62.73° or 1.09 radians
use the corresponding answer depending on if the question asks for degrees or radians
