Question 3 (10 points) (06.07 HC)
A student is assessing the correlation between the number of workers in a factory and the number of units produced daily. The table below
shows the data:
0
10
20
30
40
50
60
70
80
90
Number of workers
kx)
Number of units
(y)
2
52
102
152
202
252
302
352
402
452
Part A: Is there any correlation between the number of workers in a factory and the number of units produced daily? Justify your answer. (4
points)
Part B: Write a function which best fits the data. (3 points)
Part C: What does the slope and y-intercept of the plot indicate? (3 points)
(10 points)
Part A:

Factor completely. x^8 - 1/81 a) (x^4 + 1/9)(x^2 + 1/3)(x^2 - 1/3) b) (x^4 - 1/9)(x^2 + 1/3)(x^2 - 1/3) c) (x^4 + 1/9)(x^2 - 1/3)2

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave