We Know That This Number Is:
Two-Thousand-Seven-Hundred-Eighty-Three.
So, This tells Us That The 2 Is The Thousandths Place.
So, We Also Know That The Value Of 2 In The 2nd One Is 200. This Means That The value of the first one is 10 times larger than the value of the 2 in the second one!
8:00 to 11:00 = 3hrs
11:00 to 12:00 = 1hr
12:00 to 4:00 = 4hrs
3hrs + 1hr + 4 hrs = 8hrs
In minutes, 8 hrs will be 480mins.
One way to solve this problem is by:
First multiply both sides by 10
30r=9
Now divide by 30
r=0.3 Final Answer
By evaluating the quadratic function, we will see that the differential quotient is:
<h3>
How to get (f(2 + h) - f(2))/h?</h3>
Here we have the quadratic function:
Evaluating the quadratic equation we get:
So we need to replace the x-variable by "2 + h" and "2" respectively.
Replacing the function in the differential quotient:
If we simplify that last fraction, we get:
The third option is the correct one, the differential quotient is equal to 8 + 4.
If you want to learn more about quadratic functions:
brainly.com/question/1214333
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Complete question :
The 100m dah times in the girl's track meet were normally distributed with a mean of 13 seconds and a standard deviation of 0.3 seconds.
Lana finished the race in 13.2 seconds . If 84 other girls ran in the event, approximately how many runners did she beat?
Answer:
21 runners
Step-by-step explanation:
Mean, μ = 13 seconds
Standard deviation, σ = 0.3
Lana's race time = 13.2
We find the proportion of runners who had race time above 13.2 ;
Proportion of who had race tune above 13.2
P(x > 13.2)
Obtain the Zscore
Zscore = (x - μ) / σ
Z = (13.2 - 13) / 0.3
Zscore = 0.2 / 0.3 = 0.6667
P(Z > 0.6667) = 0.25239 (Z probability calculator)
This is about 0.25239 * 100 = 25.24% = 25% (nearest percent)
Hence, Number of runners Lana beat = 25% of total runners ;
0.25 * 84 = 21
Hence, Lana beat about 21 runners
