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Differentiate x^2

To differentiate x^2

Step 1) whatever the number on the power, put that in front of x.

Step 2) Then minus one (-1) from the power

Therefore, by putting the n...

Answered by Anjana M. • Maths tutor

4624 Views

Solve this pair of simultaneous equations to find x and y

(1) 2x - 5y = 11(2) 3x + 2y = 7-----------------------Multiply equation (1) by 3 & Multiply equation (2) by 2 to give equal values for x:(3) 6x - 15y = 33(4) 6x + 4y = 14-----------------------Take eq...

Answered by James B. • Maths tutor

4770 Views

Find the equation of the straight line which passes through the point (0, 3) and is perpendicular to the straight line with equation y = 2x.

We know that a straight line has a general formula: y = mx+c, where m is the gradient of the line and c is the y-intercept; so, we are looking to find m and c.

The line passes through th...

Answered by Flavian M. • Maths tutor

21901 Views

Integrate (x^3 - x^2 - 5x + 7) with respect to x.

Remember to integrate you +1 to the power and divide by the new power:(x³⁺¹/3+1) - (x²⁺¹/2+1) - 5(x¹⁺¹/1+1) + 7(x⁰⁺¹/0+1) + CDONT FORGET YOUR CONSTANTx⁴

Answered by Nathan L. • Maths tutor

5587 Views

How should I aproach a connected rates of change question.

You should start by identifying which parts have a fixed rate of change e.g. water is being poured in at 50 cm^3/s. You should then identify what is changing in relation to this e.g the height of fluid in...

Answered by Kyle C. • Maths tutor

7752 Views