Answer:
1)
(a) 19 44
(b) 3.96 m
2.01 x 90%= 1.95
1.95 + 2.01
(c)
i] 6
2 events *3 medals per event
ii] 60
simple ratio
iii] 20 including marathon run and high jump events
2)
(a) 8.5 cm
closest round off figure
(b) 4/3πr²
4/3 x π x (8.5)²
303 cm³
Answer: 4cm x 4cm x 4cm = 64cm
Step-by-step explanation:
4x4 = 16x4 = 64
Find the mean ( average):
105 + 104 + 110 + 112 + 114 + 106 + 108 +109 = 868
Mean = 868 / 8 = 108.5
Standard deviation:
108.5 - 105 = 3.5, 3.5^2 = 12.25
108.5 - 104 = 4, 4^2 = 16
110 - 108.5 = 1.5, 1.5^2 = 2.25
112 - 108.5 = 3.5, 3.5^2 = 12.25
114 - 108.5 = 5.5, 5.5^2 = 30.25
108.5 - 106 = 2.5, 2.5^2 = 6.25
108.5 - 108 = 0.5, 0.5^2 = 0.25
109 - 108.5 = 0.5, 0.5^2 = 0.25
12.25 + 16 +2.25 + 12.25 + 30.25 +6.25+0.25+0.25 = 79.75
79.75/8 = 9.96875, SQRT(9.96875) = 3.1573
Standard Deviation = 3.1573
108.8 +/- 1.96 *(3.1573/sqrt(8) = 110.687 and 106.312
110.687 - 108.5 = 2.19
108.5 - 106.312 = 2.19
Margin of error = +/- 2.19
Answer:
-3 1/2
Step-by-step explanation:
We have to find the distance between x and z along the y-axis.
This will be: 5 - -6 = 11 units
1/5 of 11 = 1/5 × 11
= 11/5
= 2 1/5
Now add 2.5 to -6
2 1/2 + -6 = -3 1/2
The value of y = -3 1/2
Answer:
17x+4
Step-by-step explanation:
4(5x+1)-3x
20x+4-3x
17x+4
