13.5/3 = 4.5
He hiked for 4.5 hours.
Answer:
Step-by-step explanation:
Given : The Russo-Japanese War was a conflict between Russia and Japan that started in the year 1904.
To Find: Write an inequality in terms of x and 1904 that is true only for values of x that represent years before the start of the Russo-Japanese War.
Solution :
The year of the conflict is 1904.
We are given x that represents the year before the given year 1904.
Since we are given that x represents the year after the given year 1610.
⇒ x must be smaller than year 1904
Thus, the inequality becomes:
Hence an inequality in terms of x and 1904 that is true only for values of x that represent years before the start of the Russo-Japanese War
We are given 2 points with there coordinates easy to calculate:
the upper one A(1,15) & the lower one B(6,10). Moreover the equation of this linear function is y = mx + b
1st) calculate m= (10-15) / (6-1) [FOMULA m=(y₂ - y₁) / (x₂ - x₁)]
m= -5/5 ==> m= - 1==> y=-x + b. To calculate b, replace x & y by any of the 2 points A, B. Say A(1,15)
15 = - (1) + b ==> b= 16 & final equation y = -x +16
Answer:2.8
Step-by-step explanation: none
The sample statistic that must have changed after the correction was made is mean. Because mean is based on all the observation in the data. So changing any value in the data will impact mean.
Changing the highest salary in the data will have no impact on median because median lies at the center of data.
Changing the highest salary in the data will have no impact on mode because mode is the most frequently occurring value in the data.
Changing the highest salary in the data will have no impact on minimum because minimum is the smallest value in the data.
Hence the only statistic which will change is mean.