Step-by-step explanation:
2L+2W= L*L+W*W= 2*2+2*2= 8
L= lenght
W= width
(the formula of a rectangle is P (perimeter) = 2W (the two widths added together) + 2L (the two lengths added together)
w=2l-p÷2; w=p-1÷2; w=p-21÷2 w=p-2w÷21????
(3x + 1) + (x2 - 6)
x2 + 3x - 5
Answer:
35cm
Step-by-step explanation:
Given data
Length= 21cm
Width= 28cm
Diagonal= ???
Applying Pythagoras theorem
D^2= L^2+W^2
D^2= 21^2+28^2
D^2= 441+784
D^2= 1225
D= √1225
D= 35cm
Hence the diagonal is 35cm
The total amount that was raised for charity is £75.
<h3>What is the total amount raised?</h3>
Here is the sample space
1 2 3 4 5 6
Heads 1 4 9 16 25 36
Tails 1 8 27 64 125 216
Probability of getting a number greater than 30 = 4/12 = 1/3
1/3 x 450 = 150
Total value of people getting more than 30 : 150 x £1 = £150
Total amount paid = 50 x 450 = £225
Amount raised = £225 - 150 = £75
To learn more about probability, please check: brainly.com/question/13234031
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