Answer:
4/9
Step-by-step explanation:
There are 9 positive integers less than 10: {1, 2, 3, 4, 5, 6, 7, 8, 9}.
The 4 primes less than 10 are ... {2, 3, 5, 7}.
The probability Daria selected a prime is 4/9.

Set

, so that

. Then the integral is

Or, if you meant exponents in place of coefficients,

Let

, so that

, and use the fact that

to get

It would be y+3. This is written as an algebraic expression.
Answer:
1:23
Step-by-step explanation:
20 / 460
= 1 / 23
= 1:23