Answer:
Yes! if this was an option then this one would be correct
Step-by-step explanation:
In order to see if the ordered pair are a function you could graph them, or you could look at the x-values and see if there are any duplicates. in this case there are not.
High Hopes^^
Barry-
The reason they have to be simplified is that you cannot add radical unless the number under the radical is the same on all of them.
For example:
If you add √8 + √32 without simplifying, the best you could do is an estimate. But if you're required to put your answer in standard radical form this would be an issue.
So, you would have to simplify to combine:
√4√2 + √16√2
2√2 + 4√2
6√2
Hope this helped!
Answer:
Step-by-step explanation:
975,204 can be re-written in expanded form as follows:
9*100000 + 7*10000 + 5*1000 +2*100 + 4*1
X^2 + 30x + 21
= ( x + 15)^2 - 225 + 21
= (x + 15)^2 - 204
Its D minimum at -204
Answer: 64.60
Step-by-step explanation:
lets do 6.80x9
= 61.20
for the half an hour, divide 6.80 by 2
it would be 3.40
61.20+3.40= 64.60