Does anyone know why I only got 2/3 marks, and can you explain how to get 3 marks please. Please answer.
1 answer:
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Answer:
#5: d=22, #6: , #7:
Step-by-step explanation:
#5:
#6:
#7:
Answer:
B. 5
Step-by-step explanation:
We have been given that R varies directly with S. When S is 16, R is 80. We are asked to find constant of variation.
We know that two directly proportional quantities are in form , where,
k = Constant of variation.
Upon substituting our given values, we will get:
Therefore, the constant of variation is 5 and option B is the correct choice.
Answer:
600
Step-by-step explanation:
Harry invests £5000 for 3 years.
He gets a simple interest of 4% per year.
Work out the total interest Harry gets.
Solution
The formula for simple interest
S.I = P*R*T/100
Where P = Principal = £5000
R = Rate = 4%
T = Time = 3 years
£ 5000 * 4 * 3 /100
50 * 4 * 3
£ 600.
Let u = 5x+1. Then du = 5·dx, and your integral is