## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with radio telescope

### The Microwave is in the Dish!

May6

The Dish is a 2000 Australian film that tells a partly true, and quite funny story of the Parkes Observatory’s role in relaying live television of man’s first steps on the moon during the Apollo 11 mission in 1969. It was the top grossing film in Australia in 2000. Today, scientists at the radio telescope […]

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#### 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)?]