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Convert 0.2m^2 to mm^2

We know that 1m=1000mm Therefore 1m^2= 1000^2 mm^2 Since 1/0.2=5 1000^2 / 5= Answer
LF
Answered by Lucas F. • Maths tutor
5362 Views

If a line is in the form y=mx+c why does m give you the gradient of the line

gradient is change in y over change in x. if (x1,y1) and (x2,x1) are lines on a graph then the change in y is y2-y1 and change in x is x2-x1, and since they are both on the line y1=mx1+c and y2=mx2+c, so y2-...
VB
Answered by Vedant B. • Maths tutor
4997 Views

V= 4(h^3 +1)^0.5 - 4, find dv/dh when h=2

V= 4(h 3 +1) 0.5 - 4 dV/dh= (4x 0.5) x 3h 2 x (h 3 +1) -0.5 => 6h 2 (h 3 +1) -0.5 Substitute h=2 into dV/dh => (6x2 2 )x(2 3 +1) -0.5 => 24 x 1/3 = 8
OD
Answered by Oliver D. • Maths tutor
5380 Views

a). Solve x-4=13, b). solve 7y=35 c). solve 3w-9=27

a). x-4=13 13+4=17 x=17 b). 7y=35 35/7=5 y=5 c). 3w-9=27 3w=27+9 3w=36 w=36/3 w=12
JM
Answered by Joe M. • Maths tutor
3559 Views

How do you solve simultaneous equations?

I will run through an example of how to solve a set of simultaneous equations. In simultaneous equations you are given two or more algebraic equations and you need to solve them for the variables, usually ca...
DH
Answered by Dorothy H. • Maths tutor
4025 Views