Answer:
<em>h = 3</em>
Step-by-step explanation:
What we have here is a classic case of pythagorean theorem. 5 is the hypotenuse and 8 is divided directly in half to make one of the legs equal to 4. inputting this into the pythagorean equation we get 4^2 + h^2 = 5^2 or 16 + h^2 = 25. 25 - 16 = 9 and the square root of 9 is 3. therefor <em>h = 3</em>
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Please mark as Brainliest :)
<span>0.053
The standard deviation of a binomial variable is
sqrt(n*P*(1-P))
where n is the sample size and P is the probability of one of the outcomes.
The sample size is 55 and we'll assume that both male and female are equally likely outcomes.
standard deviation = sqrt(55*.5*.5) = 3.7081%
44% is 1.6181 standard deviations away from the mean of 50%.
Looking this up on a standard deviation chart gives .0526 probability which we'll round to 0.053</span>
34-13.6=20.4
20.4/34= .60
60% off
Answer:
51 messages
Step-by-step explanation:
15% of 60
15*60 = 900
900/100 = 9
and now 60-9 = 51
Final answer: She didnt sent 51 messages to her friend