Answer:
$0.54
Step-by-step explanation:
Start by multiplying 4.5 times 1.20. That’s the normal price of the apples when they’re not on sale. $5.40. Move the decimal place back by one and you get 0.54. That’s the total price of the apples.
Answer:
A
Step-by-step explanation:
Since both graphs are straight lines passing through the origin, then they both display a proportional relationship
2(p)
P^2
4+p(2)
Hope this helps
It'd be 54. Its flipping the numbers, adding two, flipping again, repeat.
Explanation:
Formula to calculate pH of a chemical or solution is as follows.
pH = ![-log [H^{+}]](https://tex.z-dn.net/?f=-log%20%5BH%5E%7B%2B%7D%5D)
Therefore, calculate the pH of given chemicals as follows.
1). Oven cleaner
pH = ![-log [H^{+}]](https://tex.z-dn.net/?f=-log%20%5BH%5E%7B%2B%7D%5D)
= ![-log [10^{-13}]](https://tex.z-dn.net/?f=-log%20%5B10%5E%7B-13%7D%5D)
= 13
2). Water
pH = ![-log [H^{+}]](https://tex.z-dn.net/?f=-log%20%5BH%5E%7B%2B%7D%5D)
=
= 6.15
3). Blood
pH =
= ![-log [4 \times 10^{-8}]](https://tex.z-dn.net/?f=-log%20%5B4%20%5Ctimes%2010%5E%7B-8%7D%5D)
= 7.40
4). Vinegar
pH =
= ![-log [63 \times 10^{-4}]](https://tex.z-dn.net/?f=-log%20%5B63%20%5Ctimes%2010%5E%7B-4%7D%5D)
= 2.20