## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with why learn mathematics

### Why Learn Mathematics?

October1

The most common question students ask their Mathematics teachers at every level is “When will I use math?” WeUseMath.org is a non-profit website that helps to answer this question. This website describes the importance of mathematics and many rewarding career opportunities available to students who study mathematics.

### Calculus and 3 types of Math Models

August22

Why do we learn Mathematics? Why is Calculus important? How does Mathematics help in designing spacecraft? What are some practical applications of the kind of mathematics I might do when I get to college? Click on this short video for some ideas!

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on Calculus and 3 types of Math Models

#### Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]