CAN U PLS ANSWER WILL GIVE BRAINLIEST
1 answer:
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Answer:
I honestly was having the worst time trying to solve this sorry :(, for real idk if any of these are right
i got 2 answers; 1st: ≈0.5 mph
the 2nd; 2 mph
Step-by-step explanation:
Speed =
2/3 miles = 3520 feet
1/3 hours = 20 minutes
------Make a proportion-----
cross multiply------
3520 * 60 = 211200
5280 * 20 = 105600
Divide
---(this is where i got confused cuz 2 doesn't make any sense)--
If you flip them, which makes more sense
hope i helped :(
Answer:
The probability that it would take more than four hours to construct a soapbox derby car = 0.1587 or 15.87
Step-by-step explanation:
Given -
Mean = 3 hours
Standard deviation = 1 hours
Let X be the no of hours to construct a soapbox derby car
the probability that it would take more than four hours to construct a soapbox derby car =
=
= Put
= 1 -
= 1 - .8413 Using z table
= 0.1587