Answer:
1) biased sample
2) random sampling
Step-by-step explanation:
Since the results are based on feedback of students in only one class, it's not a good representative of the entire student body.
Also, since it's a math class there will be a bias.
Better method would be randomly selecting students from the entire school students list and take their feedback
Answer:
N = 17.1°
P = 72.9°
168.96 = NQ
Step-by-step explanation:
13.6 ^2 = 4^2 + NQ
184.96 - 16 = NQ
168.96 = NQ
------------------------
N = 17.1°
P = 72.9°
Answer:
b. 46°
Step-by-step explanation:
In a circle, measure of minor arc is equal to the measure of its corresponding central angle.
Two triangles ∆DEF
and ∆<span>MNO are equivalent to each other, then their
corresponding angles and sides are also equal to each other. Therefore option C
is correct, which is angle EDF is equal to angle NMO. It is also mentioned in
the attached diagram. </span>
Answer:
$330
Step-by-step explanation: