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Calculate the area of a circle of diameter 8cm

Solution: We can first write down the formula for the area of a circle which is pi*(radius)^2. The radius of the circle is half the diameter, so radius= 1/2(8)=4cm. Therefore the area of the circle is: pi* (...
HH
Answered by Headon H. • Maths tutor
21143 Views

Rearrange the following making a the subject: (a+2)/5 = 3a+b

(a+2)/5 = 3a+b ...first, we need to multiply both sides by 5 a + 2 = 5 (3a + b) ....to be able substract 3a from the right side we need to remove the bracket. We multiply the bracket by 5. a + 2 = 15a + 5b ....
KR
Answered by Katerina R. • Maths tutor
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Please define marketing mix. What is its importance for business?

Simply put, the company should puts the right product, at the right place, at the right price, at the right time. Product means understanding what the customers want; this includes understanding how our prod...
KR
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Describe the process and purpose of transcription

The purpose of transcription is to produce an mRNA copy of a gene, to allow the genetic information to pass out of the nucleus, through the nuclear pores where it can be used to assemble a protein. Enzyme DN...
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Answered by Megan G. • Biology tutor
28634 Views

Expand the following: (4x+7)(7x-2)

Using the FOIL (Firsts, Outsides, Insides, Lasts) mnemonic, you can expand these two brackets. F: 4x x 7x = 28x^2 O: 4x x -2 = -8x I: 7 x 7x = 49x L: 7 x -2 = -14 Therefore the expansion as a whole is: 28x^2...
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Answered by Gem P. • Maths tutor
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