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if b is two thirds of c. 5a = 4c Work out the ratio a : b : c

So firstly, we need to write the statement "b is two thirds of c" as an equation. This can be written as b=2/3 c. As a ratio this can be written as b:c is 2/3:1 . Now we went to write the equation ...
MT
Answered by Mike T. • Maths tutor
19407 Views

Find the derivative of y=arcsinx

To differentiate we must use implicit differentiation. So: siny=x .Differentiating both sides we get (dy/dx)cosy=1, so (dy/dx)=1/cosy . Using the common identity (sin 2 (y)+cos 2 (y)=1) we can rewrite the de...
SG
Answered by Shivum G. • Maths tutor
3387 Views

Find the differential of y=arcsinx

To differentiate we must use implicit differentiation. So: siny=x .Differentiating both sides we get (dy/dx)cosy=1 , so (dy/dx)=1/cosy . Using the common identity (sin 2 (y)+cos 2 (y)=1) we can rewrite the d...
SG
Answered by Shivum G. • Maths tutor
1593 Views

Given 2 points, how do you calculate the equation of a straight line?

Remember that the equation of a straight line function is: ax+c. a= change of y/ change of x The steps to follow are:1- find the gradient of the slope2- replace the equation by values coming from any of the ...
ZJ
Answered by Zachary J. • Maths tutor
3206 Views

A quadrilateral shape has angles of 60, 75, and 105 degrees. How many degrees is the fourth angle?

All interior angles in a quadrilateral add up to 360 degrees. Adding up what we know so far 60 + 75 + 105 = 240. So the fourth angle must be 360 - 240 which equals 120 degrees.
PB
Answered by Priti B. • Maths tutor
7596 Views