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solve 4^xe^(7x+5) = 21

ln((4^x)e^(7x+5)) = ln21; apply a natural log on both sides of the equation as an exponential containing e is involved ln4^x + ln(e^(7x+5)) = ln21; using logarithm rules you can seperate the single log on th...
WN
Answered by Wahib N. • Maths tutor
3923 Views

What is the best way to write and essay?

The best essays have are clear, correct, and convincing. All essays should be clear. This means that every essay should have an introduction, main body, and conclusion. The introduction should explicitly tel...
JH
Answered by Jack H. • History tutor
2668 Views

How do you integrate y = 4x^3 - 5/x^2?

First we should look at the formula for integrating x n . The integral is (x n+1 / n+1) + C. Let's break down our equation into two parts. The integral of 4x 3 = 4(x 3+1 / 3+1) = 4(x 4 / 4) = x 4 The integra...
HJ
Answered by Hannah J. • Maths tutor
5475 Views

What are demand characteristics and how can they be minimised?

Demand characteristics are the clues in an experiment which could convey the purpose of the research to the participant. Participants will be affected by: (i) their surrounding: (ii) the researchers characte...
BA
15186 Views

Calculate the mass of the following substance: a) 2.5 x 10^23 molecules of N2

Avogrado's constant = 6.02214086 × 10 23 mol -1 2.5/6.02=0.415 Ar of N = 14 Mr of N2 = 28 28 x 0.415=11.62
KP
Answered by Kishan P. • Chemistry tutor
14512 Views