Find the median of the following set of scores:
65, 72, 55, 48, 78
55
60
63.5
65
72
Correct answer is D
No explanation has been provided for this answer.
Points X and Y are respectively 12m North and 5m east of point Z. Calculate XY
7m
12m
13m
17m
18m
Correct answer is C
Using pythagora's theorem:
hyp2 = opp2 + adj2
hyp2 = 122 + 52 → 144 + 25
hyp2 = 169
hyp = √169
hyp = 13
100m
75√3m
100√3m
200√3m
300m
Correct answer is C
No explanation has been provided for this answer.
30km
42km
45km
60km
120km
Correct answer is D
No explanation has been provided for this answer.
−12
−√32
12
√22
√32
Correct answer is A
sin 210 = - sin (210 - 180) = - sin 30
= −12