Answer:
n = 3.666 or (3 and 2/3)
Step-by-step explanation:
4.5n + 2.5 = 19
4.5n = 19 - 2.5
4.5n = 16.5
n = 16.5 / 4.5
n = 3.666 or (3 and 2/3)
Answer:
in my opinion it is polynomial function
Answer:
2/45
Step-by-step explanation:
Total socks:
7 + 8 + 10 + 5 = 30
P(blue) × P(patterned)
8/30 × 5/30
4/15 × 1/6
2/45
Answer:
2sqrt(2)
Step-by-step explanation:
5x^2 - 40 = 0
=> 5x^2 = 40
=> x^2 = 40/5 = 8
=> x = sqrt(8) = sqrt(4 x 2) = 2sqrt(2)
I think you mean in terms of
?
Recall Euler's identity

and de Moivre's theorem

where
.
It follows that

By the binomial theorem, expanding the right side gives

and so

We can factorize this as

and using the Pythagorean identity

this reduces to
