Answer:
C is a function... all the others are not functions since it doesn't pass the line test.
Step-by-step explanation:
The expected value should be a 1/3 change because you have three coins each , then 1/6 altogether change or randomization the most realistic highest expected value is you paying them 2$
Answer:
A
Step-by-step explanation:
multiplication is the inverse of division and subtraction is the inverse of addition
Answer:
21
Step-by-step explanation:
9+9=18
18+3=21
First we have to combine like terms. 4x² is one term. -8x is another term. -7 is another term. poly = "many" ⇒ polynomial = many terms
(4x² - 8x - 7) + (-5x + 16)
4x² - 8x - 7 - 5x + 16
Combine like terms.
Step 1: 4x² has no other terms with x² so it stays by itself.
Step 2: -8x and -5x are like terms because they both have x.
So -8x -5x = -13x (You put two negatives together)
Step 3: -7 and 16 don't have any x with them. -7 + 16 = 16 - 7 = 9
Now we put all the answers of the steps together.
Step 1: 4x²
Step 2: -13x
Step 3: 9
So the answer is 4x² - 13x +9
And it's a polynomial because there are three terms = "more than one term"
