2 .
Mrs Mahlangu writes down the marks for the English test that the students in her class
their first class test and wants to work out the different statistics for the test. She asks y
help her. Below are the marks that the 31 students scored:
87
74
76
21
65
29
63
58
54
19
13
56
52
69
66
4
72
34
42
52
67
48
50
63
58
81
61
a)
Determine the mean mark.​

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: