Answer:
Solution :
{x,y} = {3,7}
Step-by-step explanation:
<span>The compound nickel (III) chloride dihydrate has two moles of water for every one mole of ionic compound.
In each mole of ionic compound, there are two moles of water in this compound. </span>
1 pound = 1.28 dollar
We can multiply to find the amount he has.
3750 * 1.28 = $4800
Therefore, the answer is B.
Best of Luck!
First we need to factor the left side. Since it is a perfect square (as is the process with completing the square, we know we can take half of the middle number along with x to be in the two parenthesis.
(x - 4)(x - 4) = 25
Now we simplify to show it as a square.
(x - 4)^2 = 25
Next we take the square root of both sides
x - 4 = +/- 5
Note that we have plus or minus 5. This is because either square would give us positive 25. Now we add 4 to both sides
x = 4 +/- 5
4 + 5 = 9
4 - 5 = -1
Answer:
The pattern is subtract 9 (OR -9)
Step-by-step explanation:
100 - 91 = 9
91 - 82 = 9
82 - 73 = 9
Glad I could help! Feel free to mark brainliest!
