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Solve, using SohCahToa, right angle triangle ABC for the hypotenuse, where adjecent=10cm & theta=40 degrees.

First draw the triangle for visual representation, it can often clear the problem in your head if its too difficult to visualise. Then write sohcahtoa and decide which function to use by highlight the values...
AC
Answered by Alexander C. • Maths tutor
2898 Views

What is the value of x if 2X+1: 3 = 5: 9?

The product of the inside (3 and 5) and the product of the outside (2X+1 and 9) are equal to each other. Therefore 18X+9 = 15. Therefore 18X =6 and if we divide both sides by 18, we get X=1/3.
HL
Answered by Hosouk L. • Maths tutor
7655 Views

What is the difference between natural selection and evolution?

Evolution is the gradual change in the alleles of a species over time to make it more suited to its environment. Natural selection is when certain members of a population have an advantageous allele making t...
HD
Answered by Hannah D. • Biology tutor
3067 Views

« L’anglais est la langue dans laquelle j’exprime le mieux la subtilité. Mais je dois dire que le français est la langue la plus proche de mon cœur ». Quelles distinctions pouvez-vous établir entre une langue maternelle et une langue seconde ?

This question aims to make the difference between a mother tongue and the other languages spoken by an individual. Here, the aim is to make the student discuss the subtlety between the different languages an...
AD
Answered by Amélia D. • French tutor
2425 Views

What is the difference between using depuis/pendant/pour in French when saying for?

Firstly, we use 'depuis' to describe an action that began in the past and continues into the present. It is formed with 'depuis' and the verb in the present tense. For example; "J'écoute de la mausique ...
AL
Answered by Alice L. • French tutor
6107 Views