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How do Headlands and Bays form on a coastline?

There are a number of ways where coastlines see the formation of headlands and bays but there are a number of factors which must be seen for these to form. Firstly the geology and lithology of the coastline ...
EW
Answered by Ella W. • Geography tutor
7338 Views

3x^3 -2x^2-147x+98=(ax-c)(bx+d)(bx-d). Find a, b, c, d if a, b, c, d are positive integers

(bx+d)(bx-d)=b^2x^2-d^2(ax-c)(bx+d)(bx-d)=(ax-c)(b^2x^2-d^2)=ab^2x^3-ad^2x-b^2cx^2+cd^2ab^2=3b^2c=2ad^2=147-cd^2=98From equations:a=3/b^2c=2/b^2d^2=49b^2Since a, b, c, d are positive integers, b must be 1. T...
LK
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What is a gene and why is it relevant?

A gene is a part of a chromosome. The gene codes for a protein that expresses a specific characteristic.Genes code for our physical characterisics. It is a set of instructions to code for a protein which hel...
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Answered by Charlotte C. • Biology tutor
4526 Views

What is the present continuous/progressive and how do I form it?

The present continuous or the present progressive is used to desribe an action that is occuring right now, in the moment of speaking.It is like the the simple present tense, but is formed using the verb 'to ...
EM
Answered by Elisheba M. • Spanish tutor
4652 Views

Simplify 3!/5!

We call 3! 'three factorial' and 5! 'five factorial'. 3!=3x2x1 5!=5x4x3x2x1 So our fraction becomes: (3x2x1) / (5x4x3x2x1) = 6/120 Then dividing the top and bottom by 6 we get: 1/20
ME
Answered by Max E. • Maths tutor
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