Answer:
72%
Step-by-step explanation:
36*100=3600
3600/50=72
√(5y)^(1/2) haci es en radical
Answer:
A
Step-by-step explanation:
Group the 4 terms into groups of 2 without changing their order. That looks like this:
![(2x^3+6x^2)+(5x+15)](https://tex.z-dn.net/?f=%282x%5E3%2B6x%5E2%29%2B%285x%2B15%29)
Now within each group pull out what's common:
![2x^2(x+3)+5(x+3)](https://tex.z-dn.net/?f=2x%5E2%28x%2B3%29%2B5%28x%2B3%29)
Now we have (x + 3) common between the 2 terms, so let's pull that out. With grouping, you know that it "works" if what's in the parenthesis are both exactly the same term. Ours are both (x + 3). What's "left over" are the things we originally pulled out, so group those together and you're done!
![(x+3)(2x^2+5)](https://tex.z-dn.net/?f=%28x%2B3%29%282x%5E2%2B5%29)
<span>f(i) = i³ - 2(i)²
Use the facts, i³ = -i and i² = -1
f(i) = 2 - i</span>