Welcome to H3 Maths

Blog Support for Growing Mathematicians

Posts tagged with new year

A Baby is Born 1 min into the New Year – What are the odds?

January1

As fireworks were fired off from Auckland’s Sky Tower to welcome 2018, the country welcomed the first baby of the new year. The healthy baby boy, weighing 3.5kg, was born at Auckland Hospital at 12.01am to a Howick couple on the first day of the new year. There are 526,600 minutes in a year, meaning […]

by posted under Uncategorized | tagged under , , , ,  |  Comments Off on A Baby is Born 1 min into the New Year – What are the odds?

First Day of 2012

January1

Wow – hard to believe that we are already into 2012 (image from http://www.flickr.com/photos/triplejworld/6610786893/). Makes me think about the date 01/01/2012 – just using the digits 0,1,2. How often does that happen? When will it happen next? OK., so it’s not that hard – how about 02/01/2012, 10/01/2011, 11/01/2012, 21/01/2012, and 01/02/2012, etc? So, how […]

by posted under Uncategorized | tagged under , ,  |  Comments Off on First Day of 2012

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)?]

H3 Viewers



Skip to toolbar