<span>A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of water in it. The water that evaporate would be: 2.5 </span>million liters - 2 million liters = 0.5 million liters <span>
The percent of water evaporated would be:
percent of water evaporated: </span>evaporated water/ original swimming pool volume * 100%
0.5 million liters / 2.5 million liters * 100%=
1/5 *100%= 20%
Answer: 1
Step-by-step explanation:
If you plug in 0 for x, 2 * 0 is 0 so it cancels out and you're left over with y = 1
Answer:
x=13.7
Step-by-step explanation:
CD=CB=6
AC=AD+CD => AC=9+6 => AC=15
AC^2= AB^2 + BC^2 => 15^2 = X^2 + 6^2 => 225 = X^2 + 36 => X^2 = 225 - 36 => X^2 = 189 => X=13.7
Answer:
3 packages
Step-by-step explanation:
Given
See attachment for complete question
Required
The packages less than 30 kg.
To do this, we simply add up the frequencies of packages less than 30 kg.
From the chart, we have:
So, the total is:
Answer:
1) a) yes
b) no
c) a² - 39
(a)² - (sqrt(39))²
(a - sqrt(39))(a + sqrt(39))
This quadratic can be split into real factors, but not rational
sqrt(39) is a real number, but not rational