Top answers

Why does as an excess of nutrients such as nitrates lead to animal death in bodies of freshwater?

This is an unexpected result as usually nutrients are considered beneficial to organisms. Some organisms do benefit enourmously from the nutrients, but this leads to the deaths of other. The high concentrati...
DA
Answered by Daniel A. • Biology tutor
3658 Views

Consider an isosceles triangle ABC, where AB=AC=1, M is the midpoint of BC, and <BAM=<CAM=x. Use trigonometry to find an expression for BM and by finding BC^2, show that cos2x = 1 - 2(sinx)^2.

Consider the right-angled triangle BAM. We have the hypotenuse and an angle, and want to find the opposite side. Therefore, using SOHCAHTOA, sinx = BM/1, hence BM = sinx. Because M is the midpoint of BC, BC ...
BS
Answered by Blessie S. • Maths tutor
7099 Views

Write a persuasive article on why students should or shouldn't have to wear school uniform

Uniform. The bain of our lives as students. What does it achieve? Oppression. Regimentation. Suppressing our freedom to express ourselves. Teachers and schools insist that as students we should strive to be ...
IH
6778 Views

Which type of electromagnetic radiation has the longest wavelength?

Radio waves
TD
3470 Views

Solve 5x + 10 = 2x(5x + 10)

First multiply out the right hand side to get5x + 10 = 10x^2 + 20xThen rearrange so everything equals zero, forming a quadratic equation10x^2 + 15x - 10 = 0 To make things easier, you can simplify the equati...
AM
Answered by Amy M. • Maths tutor
4652 Views