Answer:
Yes! You would sub 10-3x for y and solve.
Don't forget to use the distributive property! Your answer should be 5.
Answer: Option B.
Step-by-step explanation:
Given the polynomial:
Observe that 
and 
are perfect squares. Then, you can rewrite the polynomial in this form:
You can identify that:
Then, we can check if 
Since 
, the polynomial <em>IS NOT </em>a perfect square trinomial of the form 
Answer:
-11
Step-by-step explanation:
<h3>
Answer: 10,080</h3>
Explanation:
There are 8 letters so there are 8! = 8*7*6*5*4*3*2*1 = 40,320 permutations of those letters. However, the letters "O" and "L" show up twice each, so we must divide by 2! = 2*1 = 2 for each instance this happens.
So,
(8!)/(2!*2!) = (40,320)/(2*2) = (40,320)/4 = 10,080
is the number of ways to arrange the letters of "football".
The reason we divide by 2 for each instance of a duplicate letter is because we can't tell the difference between the two "O"s or the two "L"s. If there was a way to distinguish between them, then we wouldnt have to divide by 2.
