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M=37.5e^kt 52=37.5e^k5 52/37.5=e^5k ln(52/37.5)=5k (1/5)(ln(52/37.5))=k k≈0.06538 when t=9, M=37.5e^9*0.06538 M=67.54

B:G --> 9:7

Expressed as fractions of the whole group, boys are 9/16 of the group and girls are 7/16 of the group.

We can use algebra to work out the total group number. For our working, ...

This question is looking at integration by parts. Therefore, we need to split the integral into two parts.

Part A will be x³ and Part B will be e^x .

Draw 2 columns putt...

Essay questions can seem overwhelming at first glance, but there is a tried and tested approach that can really help you get a great mark.

Firstly, it will help to prepare beforehand. Gather togeth...

It is important to have a clear structure in English essays. Blake's book of poems is divided into two parts; Innocence and Experience. This divide can be used as the structure for this essay (there are o...