Answer:
b.
24 yd
Step-by-step explanation:
Hi, since we have a right triangle we have to apply the Pythagorean Theorem:, to find the missing side.
c^2 = a^2 + b^2
Where c is the hypotenuse of the triangle (10 yd) and a and b are the other sides.
Replacing with the values given:
10^2 = 6^2 + b^2
100 = 36+b^2
100-36 = b^2
64 = b^2
√64 = b
b= 8
Now, we can calculate the area:
A =1/2x base x height = 1/2 x 8 x 6 = 24 yd
Feel free to ask for more if needed or if you did not understand something.
=(120/48)
=5/2
=(4/2)+(1/2)
=2+(1/2) or 2.5
Answer:
Step-by-step explanation:
1) Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Let X the random variable that represent the scores, and for this case we know the distribution for X is given by:
And let
represent the sample mean, the distribution for the sample mean is given by:
On this case
2) Calculate the probability
We want this probability:
The best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
Answer:
uyf-fozr-kfw
Step-by-step explanation:
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Answer:
B
Step-by-step explanation: