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A curve passes through the point (4, 8) and satisfies the differential equation dy/dx = 1/ (2x + rootx) , Use a step-by-step method with a step length of 0.3 to estimate the value of y at x = 4.6 . Give your answer to four decimal places.

h dy/dx (4) = 0.03y(4.3) = 8+0.03 = 8.03y(4.6) = y(4.3) + 0.3 dy/dx(4.3) = 8.0581 to 4 d.p
KW
Answered by Keni W. • Maths tutor
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Describe how the guard cells surrounding the leaf pores are adapted to their role

unevenly thickened cell wall able to change shape / bendtransport proteins / ion pumps, in plasma membrane(presence of) chloroplasts (to provide, ATP / energy)
FR
Answered by Faiza R. • Biology tutor
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What makes a good essay?

A good essay always starts with a good plan. It is obvious to a reader/examiner whether or not the writer has put in time to plan. This does not only mean that the writer has thought about the ideas they wil...
LN
Answered by Lucinda N. • English tutor
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What is the best way to prepare for the TSA Oxford Section 1?

Section 1 of the TSA comprises of 50 questions to be answered by multiple choice answers in 90 minutes. Consequently, the single greatest constraint during the test will be time. So it will be really importa...
JB
Answered by Jack B. • TSA Oxford tutor
2200 Views

Express 2(x-1)/(x^2-2x-3) - 1/(x-3) as a fraction in its simplest form.

The answer is 1/(x+1)I began by factorising the denominator of the first fraction:2(x-1)/(x^2-2x-3) - 1/(x-3) = 2(x-1)/(x-3)(x+1) - 1/(x-3) Next, I multiplied both the numerator and the denominator of the se...
DR
Answered by Devan R. • Maths tutor
9791 Views