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X=4a+3b, If a is a two digit cube number and b is a two digit square number then what is the lowest possible value for X?

In order to find the lowest value for X we first need to find the lowest possible value for a and b. Let us start off with a: If a is the lowest possible cube number we can start by checking the first couple...
SI
Answered by Silje I. • Maths tutor
4951 Views

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
7287 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
8198 Views

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...
CC
Answered by Charlotte C. • Biology tutor
4479 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
4614 Views