Answer:
Step-by-step explanation:
x^2 + 8x +15 is the area
x+5 is the length
x+3 is the width
(x+5)(x+3)=
x^2 + 3x +5x +15
x^2 +8x + 15
69.75 - 64.85 = 4.90 or better yet 4.9
Answer:

Step-by-step explanation:
We need to find the absolute value of the complex number -4 -√2i
to find absolute value of any complex number we use formula
|a+bi| = 
-4 -√2i , here a=-4 and b=-sqrt(2)

= 
= 
= 
16/25
4^2/5^2
16/25 can not be reduced further