Avariable of two populations has a mean of 30.7 and a standard deviation of 32.1 for one of the population and it mean if 30.7 and it’s dinner deviation of 26.6 for the other population for independent samples of size 6211 and 4581 respectively find the mean and standard deviation of x1 minus x2

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

well what did you do it matters what you did : )

step-by-step explanation:

i dont know

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umm. i dont know

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4