Answer:
45"
Step-by-step explanation:
(3/4 x 60 )"
=45"
Answer:
Step-by-step explanation:
Sleep Deprivation
In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived participants.
(a) Identify the sample used in the study.
(b) What is the sample's population?
(c) Which part of the study represents the descriptive branch of statitics?
(d) Make an inference based on the results of the study?
Solution
A. The samples used is the hours of sleep and math test scores of the volunteers
B. The samples population is hours of sleep and math test scores of people in general
C. The part of the study that represent the descriptive branch of statistics is "three times more likely"
D.Inference: To perform well in a math test, a person should get at least 8 hours of sleep the night before.
715 miles / 11 hours = 65 mph
845 miles / 65 mph = 13 hours
It would take 13 hours to drive 845 miles.
Answer:
Area of circle is equal A = πr²
Here r = 7.5 and π = 3.142
so,
A = 3.142(7.5)²
A = 176.17 after rounding off.
Answer:
The perimeter of the given rectangle = 20 units.
Step-by-step explanation:
Length of the rectangle = 6 units
The width of the rectangle = 4 units
Now Perimeter of the Rectangle = 2 ( LENGTH + WIDTH)
⇒Here, perimeter = 2 ( 6 units + 4 units ) = 2 x ( 10 units)
= 20 units
Hence, the perimeter of the given rectangle = 20 units.
