Answer:
13528 pages
Step-by-step explanation:
356 x 38= 13528
7/9 would be irrational, I think.
the surface area of the cylinder is 0.5mm
Answer:
The top one is refraction
Refraction is the bending or change in angle of light
Hope this helps (sorry I don’t have the answer to the second question)
Factor by grouping.
0 = (x^3 +4x^2) +(9x +36) = x^2(x+4) +9(x+4) = (x^2+9)(x+4)
The first factor is the difference of squares (in complex numbers), so the form for factoring that can be used:
a^2 - b^2 = (a -b)(a +b)
Here, a=x, b=3i.
Then the factorization in complex numbers is
0 = (x -3i)(x +3i)(x +4)
Solutions are the values of x that make these factors be zero.
x = -4, -3i, 3i
