Kyle held a balloon 8ft off the ground above his head and Ava is standing 15 feet directly to g the right of Kyle how far is Ava
1 answer:
Answer:
17
Step-by-step explanation:
Pythagorean theory baby! Okay so the Pythagorean theory is a² + b² = c² so lets draw a triangle and label our sides. So we know 8² + 15² = c² so I'm going to find the square root of all of our numbers. We get 64 + 225 = c² so then add 64 + 225 = 289 then I take the square root of 289 which equals 17 . This answer also makes sense because out hypotenuse should always be bigger then the legs.
I'm pretty sure thats right, Hope this helps.
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Answer:
a) There is a 3.84% probability that the technician can machine one component in 1.5 hours or less.
b) There is a 0.42% probability that the technician will require at least 2.75 hours to complete one component
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by
After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X.
In this problem, we have to be careful. The mean is in hours, while the standard deviation is in minutes. I am going to work with both in hours, as the problem states. 17 minutes is 0.283 hours, so:
(a.) What is the probability that the technician can machine one component in 1.5 hours or less?
This probability is the pvalue of the Zscore when . So:
has a pvalue of 0.0384.
This means that there is a 3.84% probability that the technician can machine one component in 1.5 hours or less.
(b.) What is the probability that the technician will require at least 2.75 hours to complete one component?
The pvalue of the score of is the probability that the technican will require less than 2.75 hours to complete one component. The probability that he will require at least 2.75 hours to complete one component is 1 subtracted by this pvalue. So:
has a pvalue of 0.99598.
This means that the probability that the technican will require at least 2.75 hours to complete one component is 1 - 0.99598 = 0.0042 = 0.42%.