Answer and Explanation:
Number of classes = 8
Highest value =2300
Lowest value = 1250
Class width= highest value – lowest value / number of classes
= 2300 – 1250/8
= 131.25 = 132
So, we can write class as 1250+132=1382
Class frequency
1250-1382 2
1382-1514 3
1514-1646 6
1646-1778 2
1778-1910 3
1910-2042 2
2042-2174 1
2174-2306 1
The system of equations representing the number of Blue-ray discs and DVD's after t months are:
507 + 26t
925 - 12t
Each month, the number of DVD's sold decreases by 12, this can be modelled as:
number of DVD in opening month - (monthly decrease x number of months)
Number of DVD's in t months = 925 - 12t
Each month, the number of Blue-ray discs sold increases by 26, this can be modelled as:
number of blue-ray discs in opening month + (monthly increase x number of months)
Number of Blue-ray discs in t months = 507 + 26t
To learn more about growth rate, please check: brainly.com/question/18760477
Answer:
45.86 ft²
Step-by-step explanation:
Circumference of a circle = 2 * pi * r
Circumference = 24
24 = 2 * 3.14 * r
24 = 6.28r
r = 24 / 6.28
r = 3.8216 ft
Approximate area of garden :
Area of circle :
pi * r^2
Area = 3.14 * 3.8216^2
Area = 45.8585273984
Area = 45.86 ft²
Answer:
-4
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