Answer:
smallest triangle BCD
x = 15
Step-by-step explanation:
9/x = x/(16 + 9)
x² = 25(9)
x = ±15
Answer:
Third answer
Step-by-step explanation:
1 x 7 = 7
36 x 7 = 252
Answer:
<h2>Biased.</h2>
Step-by-step explanation:
The research is aimed to find if students would choose engineering as their profession.
So, according to the problem, the researcher chose the same number of male students and female students. In that case, the research would be biased. If the researcher chooses the same number of boys and girls, one group will be overrepresented, because in a school, there aren't the same number of male students and females students, that would be a perfect case which doesn't happen in real life.
So, the equivalence of the sample will bias the study, because it would misrepresented the real situation.
Therefore, the sample is biased.
First, you must make sure that since the length is twice as big as the length. That means that the length would be 6.8 because 3.4 x 3.4 = 6.8. Then, since a rectangle has two long sides and two short sides, you add 6.8 + 6.8 + 3.4 + 3.4, which equals 20.4(perimeter).
Answer:
1/3
Step-by-step explanation:
The scale factor is the ratio of image lengths to original lengths. For this pair of figures, the scale factor is ...
A'B'/AB = 2/6 = 1/3
The scale factor is 1/3.