Given right triangle ABC. To the nearest degree, find the measure of angle B.
1 answer:
Answer:
Step-by-step explanation:
We have the length of AC which is opposite angle B; we also have the length of the hypotenuse. We will use trig here to solve for angle B. The sin ratio is the one that fits.
sin(B) = side opposite / hypotenuse:
so
sin(B) = .9411764706
Now we will use the 2nd button on our calculators. This will give us the missing angle value. Press 2nd then sin and you will see on your screen:
Enter that decimal after the open parenthesis and hit "enter" to get
B = 70.25 or 70°
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Answer: There is 0.014 proportion of connectors fail during the warranty period.
Step-by-step explanation:
Let A be the event that connector fails.
Let B be the event that connector wet.
P(B) = 10%
P(B') = 90%
P(A|B) = 0.05
P(A|B') = 0.01
So, we need to find the proportion of connectors fail during the warranty period is given by
Hence, there is 0.014 proportion of connectors fail during the warranty period.