Answer:
3, 4, 6 and 8 are true.
Step-by-step explanation:
Check out the rules in below picture.
Their distance differs by 15 miles for each hour of travel time. Thus, the travel time of interest is
.. (180 -144) miles/(15 miles/hour) = 2.4 hour
The red car's speed is 180 mi/(2.4 h) = 75 mi/h.
The blue car's speed is 144 mi/(2.4 h) = 60 mi/h.
Answer:
- The approximate distance between the docks is 357 feet
Step-by-step explanation:
Let the distance between docks be d.
This is the opposite side to 45° angle of triangle with other sides 400 ft and 500 ft.
Use the law of cosines to find the value of d:
(rounded)
Answer: chi square test goodness of fit
Step-by-step explanation:
Is used to investigate whether or not there is a significant difference between a distribution generated from a sample and a hypothesize population distribution
It is 76
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