Two cyclist A and B starts from the junction of two roads inclined at 90°,the ratio of their velocities being 3:4. Find the ratio of the rate at which two cyclists are separating with the velocity of A.

determine the interval in which the function are strictly decreasing or strictly decreasing : f(x) = x×x×x×x×x×x×x×x 6×x×x

If ABC is an obtuse angled triangle, obtuse angled at B and if AD ^ CB Prove that AC2
=AB2
+ BC2
+2 BC x BD

plz send water tank problem 

If a straight line is drawn parallel to one side of a triangle intersecting the other two sides, then it divides
the two sides in the same ratio.

If a straight line is drawn parallel to one side of a triangle intersecting the othertwo sides, then it divides
the two sides in the same ratio.

The areas of two similar triangles are 121 cm2
and 64 cm2 respectively. If the median of the first triangle
is 12.1cm, find the corresponding median of the other.

Explain how 2√2×√2=8

The sides of a ABC are in the ratio AB : BC : CA = 1 : √2 : 1. Show that ABC is a right triangle, right – angled at A.

The sides of a ABC are in the ratio AB : BC : CA = 1 : √2 : 1. Show that ABC is a right triangle, right – angled at A.

The sides of a ABC are in the ratio AB : BC : CA = 1 : √2 : 1. Show that ABC is a right triangle, right – angled at A.

Factorise-4x to the power 4 7x square-2

how do we getx-25