Determine whether the sampling method described below appears to be sound or is flawed. In a survey of 729 subjects, each was asked how often he or she played sports. The survey subjects were internet users who responded to a question that was posted on a news website. Choose the correct answer below. A. It appears to be sound because the data are not biased in any way. B. It is flawed because it is a census. C. It is flawed because it is a voluntary response sample. D. It is flawed because it is not statistically significant.

Option c

Step-by-step explanation:

It is flawed because it is a voluntary response sample and their opinions might not reflect the total populations' opinions. They can also choose not to respond too...

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:

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x