Answer:
a^2 + b^2 = c^2 (pythagorean theorem)
a^2 + 40^2 = 41^2 (plug in the known values)
a^2 + 1,600 = 1681 (simplify what you can)
a^2 = 81 (subtracted 1600 from both sides)
a= (81 under a radical) (I think this is what your answer will be, based on the problem)
a=9 (what the fully simplified answer is)
<span>$28,875 I think?
pretty sure that's rounded.
</span>
I think it is a Convience Sampling.
Answer:angle 4 is the only one
Step-by-step explanation:
(2x+9)+(x)=180
3x+9=180
-9 -9
3x=171
÷3 ÷3
x=57
