In the figure, ADC = ACB = 90°, EÂD=55.1°, CAB = 40.4°, AE = 4.1 cm, AD = 3.7 cm and
Find (a) ACD; (b) AB; (c) the area of AAED.
AC = 8.0 cm.
А
40.4°
- В
B
4.1 cm
55.107
8.0 cm
3.7 cm
E
D
с C

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Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.