Workers in an office of 40 staff were asked their favourite type of take-away. The results are summarised in the table.

Take-away Frequency Angle
Pizza 5
a
Curry 8
b
Fish & chips 8
c
Kebab 3
d
Other 16
e

unless if u could do my questions, if not i wouldn't want to

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

24,18t

step-by-step explanation: