Question 20 (5 points)
1 answer:
Answer:
D.)
Step-by-step explanation:
The vertical intersection of the point is found by the x value. Starting at the point, move down to find the value of x. The vertical line, value x, is 1.
The horizontal intersection of point B is found by the y value. Start at the given point and move to the left to find the y value. The horizontal line, y, is 6.
:Done
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Answer:
A) speed = 10.5 miles per hour
B) Time taken by him = 1.714 hours
C) Distance = 10.5 mph × 7 hours = 73.5 miles
Step-by-step explanation:
Given as :
The distance cover by David = miles = 5.25 miles
The time taken by David = hours = 0.5 hours
Let the speed = x mile per hour
So, Distance = Speed × Time
A)or, Speed =
Or, Speed =
∴ speed = 10.5 miles per hour
<u>B) Again The Distance cover by him = 18 miles</u>
SO, with speed 10.5 miles per hour
The Time taken by him = hours
Or, Time taken by him = hours
∴ Time taken by him = 1.714 hours
<u>C) Again the Time taken by him = 7 hours </u>
So, Distance cover by him with speed 10.5 mph
Or, Distance = 10.5 mph × 7 hours = 73.5 miles
A) speed = 10.5 miles per hour
B) Time taken by him = 1.714 hours
C) Distance = 10.5 mph × 7 hours = 73.5 miles Answes
Answer: 0.345
Step-by-step explanation:
Given : The incomes of families in Newport Harbor are normally distributed with Mean : and Standard deviation :
Samples size : n=4
Let x be the random variable that represents the incomes of families in Newport Harbor.
The z-statistic :-
For x= $800,000
By using the standard normal distribution table , we have
The probability that the average income of these 4 families exceeds $800,000 :-
Hence, the probability that the average income of these 4 families exceeds $800,000 =0.345