Answer:
83.85%
Step-by-step explanation:
We will use the empirical rule. For a standard normal distribution the mean is equal to 0 and the standard deviation is equal to 1. Then, between 3 standard deviations below the mean, we have 2.35% + 13.5% + 34% = 49.85% of data, and 1 standard deviation above the mean we have 34% of data. Therefore, the percentage of data that are between 3 standard deviations below the mean and 1 standard deviation above the mean is 49.85%+34% = 83.85%.
<h3>
Answer: Choice D) 56 degrees</h3>
How I got that answer:
Angle DCE is given to be 62 degrees. By the inscribed angle theorem, It doubles to 124 degrees, which is the measure of central angle DAE.
Note how angles DAF and DAE are a linear pair. This means they are adjacent supplementary angles. So they add to 180
(angle DAF)+(angle DAE) = 180
(angle DAF) + (124) = 180
angle DAF = 180-124
angle DAF = 56
First you need to find out how many cm of water that will be saved after brushing your teeth 3 times.
379 x 3 = 1137
Next you need the convert the cm to liters. You do this by dividing the cm total by 1000.
1137 / 1000 = 1.137
So you would save 1.137 liters of water while brushing your teeth 3 times.
Hope this helps!!
The answer is A because it is
60/8=7.5
So that means one child is $7.50
195/7.5=26
26 students
