Answer:
44 swimmers
Step-by-step explanation:
Given the data points :
66, 8) (71, 23) (72 16) (75 30) (78 35) (80 24) (82 37) (86 37) (87 42) (90 50)
Temperature X:
66
71
72
75
78
80
82
86
87
90
Number of swimmers Y:
8
23
16
30
35
24
37
37
42
50
Using the online regression calculator :
The regression model obtained is ;
ŷ = 1.5045X - 88.2056
Where
1.5045 = gradient or slope
-88.2056 = intercept
x = independent variable
y = dependent variable
Number of swimmers when temperature = 88
y = 1.5045(88) - 88.2056
y = 44.19
y = 44 (nearest whole number)
Answer:
5.
4 + 2(-7 - (5 - 15))
= 4 + 2(-7 - (-10))
= 4 + 2(-7 + 10)
= 4 + 2(3)
= 4 + 6
= 10
6.
((6 - 5)^8 - 1)/(-5(-2) - 4)
= (1^8 - 1)/(10 - 4)
= (1 - 1)/6
= 0/6
= 0
7.
(14² - 8²)/(-3(8 - 3²))
= (196 - 64)/(-3(8 - 9))
= (196 - 64)/(-24 + 27)
= 132/3
= 44
Answer:
4.5m by 6m
Step-by-step explanation:
12/2=6
9/2=4.5
rug is to be half the area of the entire room
Im not sure about the given data but I plotted the scatter plot based on what I understand on how the data should be presented.
Time (years)
3, 6, 9, 12, 15, 18, 21, 24
Number of participants(x1000)
22, 25, 28, 14, 17, 20,15, 9
Attached is the scatter plot created online.
x = time (years)
y = number of participantep explanation
