Answer:
- 11x² + 4x + 14
Step-by-step explanation:
Given
(9 - 3x²) + (- 8x² + 4x + 5) ← distribute both parenthesis by 1
= 9 - 3x² - 8x² + 4x + 5 ← collect like terms
= - 11x² + 4x + 14 ← sum of the polynomials
Answer:

Step-by-step explanation:
The formula of conditional probability is:

And if we called N(U) the total number of possible outcomes, then remember by definition of probability:

Then plugging them into the formula of conditional probability we get:

Then we simplify and we get:

We just plug the given info and we get:

Answer: C
Step-by-step explanation: x represents the number of classes, not the cost of classes.
Answer:
it's Rectangle
Step-by-step explanation:
I did the test and got this right.
Answer:
Step-by-step explanation:
The swordfish swims at 68 miles per hour because 4•17=68