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Solve: 3X - 5 = Y 2X +2 = Y +3

2X +2 = Y + 3 2X -1 = Y3X -5 = Y3X -5 = 2X -1 X -5 = -1 X = 43X -5 =Y 3(4) -5 = Y12 - 5 = Y7 = Y
X = 4 Y = 7

TD
Answered by Tutor516653 D. Maths tutor
2368 Views

How would you preform the flame test to identify the presence of Sodium in a solution? (3Marks)

  1. Using a clean nichrome wire dip the loop into the solution 2) Hold the loop in the blue flame of a bunsen burner 3) Observe the colour. In this case it will be Yellow.
TD
1901 Views

y=(6x^9 +x^8)/(2x^4), work out the value of d^2y/dx^2 when x=0.5

The question can be represented by the notation d2y/dx2|x=0.5, meaning the second derivative of y with respect to x resolved at x=0.5. Since y is in the form f(x)/g(x), th...

OC
4039 Views

When "por" or "para" be used? Give some examples

Por:"Through"- Andamos por la cuidad. We walk through the cityDuration- Estudió por cuatro horas- I studied for four hours Exchange- Te doy diez euros por tu mochila. I'll give you ten euros for...

ED
Answered by Emilia D. Spanish tutor
1290 Views

If f(x)=(x-2)^2, determine the gradient of the tangent to the curve f(x) at x=-2.

Firstly, we will need to determine f'(x) which is the derivative of the function and will give us the gradient at a point. This is easiest done but multiplying out the brackets of f(x) to get the function...

CG
Answered by Cameron G. Maths tutor
2792 Views

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