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4x+9y=59.5 and x+y=8. Find the values of x and y.

Firstly, take the second equation and make either x or y the subject, which means to make it either x equals or y equals. To make x the subject, we take y away from both sides giving x=8-y. Then, substitute ...
BK
Answered by Bethany K. • Maths tutor
5392 Views

What is the differential of e^x?

e^x, the differential of the exponential function is itself.
AL
Answered by Adam L. • Maths tutor
5505 Views

What is the velocity of the line from vector A(3i+2j+5k) to vector B(10i-3j+2k)?

Simply take B from A i = 10-3=7 j= -3-2=-5 k= 2-5=-3 SO the velocity is (7i-5j-3k)
SM
Answered by Sameer M. • Maths tutor
3910 Views

Differentiate 3x^2 + 6x^5 + 2/x

dy/dx= 6x + 30x^4 - 2/x^2
SM
Answered by Sameer M. • Maths tutor
4368 Views

What is algebra used for?

Ok I see why you are asking yourself this since right now you are only expressing certain formulae in a different way. Let me first talk about something else before giving you this answer. When you were in y...
MZ
Answered by Mohsin Z. • Maths tutor
4581 Views