Someone please help. What’s the Inverse of f(x)=3(x-2)^3+1???
1 answer:
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First of all i think theres a mistakein the question;
i think it is sin θ =
and then sin 30° =
thus θ= 30°
i think it is sin θ =
and then sin 30° =
thus θ= 30°
Answer:
Hi your question is incomplete attached below is the complete question
answer : p ( X < 725 ) = 0.0116
Step-by-step explanation:
Given data:
Average life of bulbs (μ ) = 750 hours
standard deviation (б ) = 55 hours
n ( sample size ) = 25
X = 725
<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>
p ( X < 725 ) = p (( X - μ )/ б √n < 725 - 750 / 55√25 )
= P ( Z > - 2.27 )
Hence P ( X < 725 ) = 0.0116 ( using Z-table )
