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Solve the simultaneous equations 5x + 2y = 4 and x - y - 5 =0

First label the equations. 1: 5x + 2y = 4 . 2: x - y - 5 = 0 . Rearrange equation 2 . 2: y = x - 5 Substitute equation 2 into equation 1 . 5x + 2( x - 5 ) = 4 . 7x = 14 . x = 2 . Substitute x = 2 into equ...

CS
Answered by Conor S. • Maths tutor
5922 Views

Integrate the function f(x)=3^x+2 with respect to x

First note that a=eln(a) and ln(ab)=bln(a)By substituting a=3x we get a=3x=eln(3^x)=exln(3), and hence f(x)=exln(3)

CC
Answered by Christian C. • Maths tutor
3310 Views

Find the maximum value of 2sin(x)-1.5cos(x)

Put the equation in the form Rsin(x-a) (=Rsin(x)cos(a)-Rcos(x)sin(a)). Looking at the original equation Rcos(a) = 2 and Rsin(a) = 1.5. Tan(a)=1.5/2 and R^2= 2^2 +1.5^2. Therefore R = 2.5 and a = 0.6435.Th...

TA
Answered by Tom A. • Maths tutor
8624 Views

What is the impact of new and emerging technology on production?

New and emerging technology can have many positive impacts on production. The improvement in technology can be brought into businesses and manufacturers to improve quality, accuracy, production rate and s...

NS
2915 Views

'Vietnam was Johnson's war' Discuss

There are multiple ways this question can be answer.              Either ‘yes’ it was his war                             Or              ‘No’ it wasn’t Both have to look at it from a president standard  ...

AH
Answered by Amy H. • History tutor
2713 Views

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