Một nhà chính trị tiến hành khảo sát ngẫu nhiên 400 cử tri thì thấy có 167 cử tri ủng hộ ứng cử viên A. Với độ tin cậy 95% hãy ước lượng khoảng cho tỷ lệ cử tri ủng hộ ứng cử viên A.

maybe showing the graph would

step-by-step explanation:

-387129 iq

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .

its kind of blurry. can you put a clearer pic?

step-by-step explanation:

the answer is 40.

proof: