Answer:
mean = 250.2
mean = 249.4
Step-by-step explanation:
given data
experiment = 15 times
solution
we get here mean that is express as
mean = 
............1
so mean for cart 1 is
mean = 
mean = 250.2
and
mean for cart 2
mean = 
mean = 249.4
Answer:
670.8
Step-by-step explanation:
55.9x12=670.8
Answer:
The total surface area is 336ft2
Step-by-step explanation:
solution:
total suface area of the pyramid
=area of base square +(12)2 = 4 (1/2 x 12 x 8)
=144+192
=336ft2
then the total surface area is 336ft2
Answer:
Slope
Step-by-step explanation:
In the regression equation y=a+bx, y is dependent variable and x is independent variable. It means that due to change in x the y changes respectively. The "a" is intercept of the model and it shows the value of y when x is zero. The "b" is the slope of the model and it depicts the change in y due to unit change in x. The positive value of b means that as the x increases y also increases and as the x decreases y also decreases. The negative value of b means that as the x decreases y increases and as the x increases the y decreases.The sign of b shows the type of relationship between independent and dependent variable.
Answer:
During the first year he had an annual interest of 12%, and in the second year of 25%
Step-by-step explanation:
To calculate the interest of the first year:
(Initial capital of the first year / final capital of the first year) - 1 = interest of the first year
(300/336) - 1 = 0.12 = 12%
To calculate the interest of the second year:
(Initial capital of the secondyear / final capital of the second year) - 1 = interest of the second year
(336/420) - 1 = 0.25 = 25%
