Posted by **perfect** on Thursday, July 25, 2013 at 12:23pm.

Given Q(4;1),T(p;3) and length QT=root of 8 units ,determine the value of p

- math -
**Reiny**, Thursday, July 25, 2013 at 2:10pm
√( (p-4)^2 + (3-1)^2) )= √8

square both sides

(p-4)^2 + 4 = 8

(p-4)^2 = 12

p-4 = ±√12

p = 4 ± 2√3

- mathSsS -
**PerfecT**, Wednesday, August 14, 2013 at 10:58am
1.Seven years ago, Rocco's drum kit cost him R12500.It has now been valued at R2300. What rate of simple depreciation does this represent?

2. Fiona buys a DStv satelite dish for R3000. Due to weathering ,its value depreciates simply at 15% p.a .after how lond will the satellite dish have a book value of zero?

- math -
**Anonymous**, Sunday, August 18, 2013 at 9:41am
11,65

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