Reciprocals are technically flipped fractions. So it would be 10/9. 9 goes into ten one time, so it's 1 1/9.
Answer:
look the photo
Step-by-step explanation:
..0000000000000000
Let's take a look at a perfect square trinomial.

We can distribute this expression to get

.
An important relation to recognize here is that the constant is the square of half of the x value.
Now, if we wanted to add a number to

to make a perfect square trinomial, we could have the value of x and then square it.
Half of 16 is 8, and 8 squared is
Answer:
18.80
Explanation:
All you have to do is add 9.4 to 9.4, or multiply 9.4 times 2, and you get 18.80