The market research firm salary. com reported that the mean annual earnings of all family practitioners in the united states was $178,258. a random sample of 55 family practitioners in los angeles that month had mean earnings of = $192,340 with a standard deviation of $42,387. do the data provide sufficient evidence to conclude that the mean salary for family practitioners in los angeles is greater than the national average? state the null and alternate hypotheses. compute the value of the t statistic. how many degrees of freedom are there? state your conclusion. use the α = 0.05 level of significance.

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b