Answer:
n = 13.
Step-by-step explanation:
Slope of the line = (10-1)/3-0) = 3
So the equation of the line is:
y - 1 = 3(x - 0)
y = 3x + 1
When x = 4 y = n, so:
n = 3(4) + 1 = 13.
n = 13.
RQP X t
Step-by-step explanation:
Yey
Answer:
21, 144, 12
Step-by-step explanation:
Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.
Let X be the distance in yard.
i.e. each entry of x is multiplied by 3.
New mean variance std devition would be
E(3x) = 
Var (3x) = 
Std dev (3x) = 
Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9
Answer:
144
Step-by-step explanation:
In a 45-45-90 triangle, the ratio of the lengths of the sides is:
leg : leg : hypotenuse
1 : 1 : sqrt(2)
Draw a segment from the center point to the bottom side of the square that is perpendicular to the bottom side. Now you have a right triangle. The hypotenuse is 6sqrt(2). The legs are 6. The bottom leg is half the side of the square.
side of square = 2 * 6 = 12
area = side^2 = 12^2 = 144
