Answer:
A) 18+81=9(x^2+6x+9)
D)11+(x+3)^2
Step-by-step explanation:
To solve this by completing the square, we want to get it to the form of: (x + 3)^2 = 9
There are multiple ways to get there.
First we could divide by 9 to get.
x^2 + 6x = 0
Then, add 9 to both sides to get:
x^2 + 6x + 9 = 9
Factor the left side:
(x + 3)^2 = 9
Now, you can solve this equation by completing the square.
(*I think you have a typo in your answer choices)
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Answer:
The surface area is 23
Step-by-step explanation:
Good Luck!
Answer:
B
Step-by-step explanation:
The function -x^4 + 1 is a polynomial graph. As such it has specific characteristics or behavior you can expect to see:
- It's leading coefficient is -1. This means the graph changes direction. Both ends of this graph face down into negative infinity.
- Its degree is 4 meaning it is an even graph. This means both ends end the same way and NOT opposite directions.
In conclusion, this graphs has ends which end the same direction and both face down.