In developing an interval estimate for a population mean, a sample of 40 observations was used. The interval estimate was 28.76 ± 1.48. Had the sample size been 160 instead of 40, the interval estimate would have been: 28.76 ± 0.74

28.76 ± 0.37

7.19 ± 0.37

7.19 ± 1.48

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6