This is a combination problem. Order does not matter and the books are all different. You would write this as 21C5 or 
. Combinations are not fractions.
The answer is 
which = 20349 different ways these books can be chosen.
Answer:
help with what? where is the question
Answer:
D
Step-by-step explanation:
As the counter clockwise rule is A(x,y) becomes A'(-y,x).
So (1, -6) becomes (6, 1)
Hope it helps you
Answer:
The answer to the equation from question 7 is 14.
Step-by-step explanation:
In question 7, we are given an equation.
2³ + (8 - 5)² - 3
First, subtract 5 from 8 in the parentheses.
2³ + 3² - 3
Next, solve the exponents for 2³ and 3².
8 + 9 - 3
Add 8 to 9.
17 - 3
Subtract 3 from 17.
14
So, the answer to this equation from question 7 is 14.
Answer:
$3+x is less than or equal to $15
Step-by-step explanation:
I can't write the sign but it's < with a line under it
