jenns age is 3 years less than marks age the sum of their ages is 30 let m be marks age find Jenna age
1 answer:
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Answer:
1. width is w. length is w + 26
2.
3. the width must be less than 34
4. sure, if the width is 10, then the area is 360
Step-by-step explanation:
1
Answer:
The probability that a radio selected at random will last from 600 to 700 hours is 0.3413
Step-by-step explanation:
The playing life of a Sunshine radio is normally distributed
Mean =
Standard deviation =
We are supposed to find the probability that a radio selected at random will last from 600 to 700 hours i.e.P(600<x<700)
Formula:
At x = 600
Z=0
At x = 700
Z=1
Hence the probability that a radio selected at random will last from 600 to 700 hours is 0.3413