4 years ago

Write expanded form 640,739

Mathematics

1 answer:

Rama09 [41]4 years ago

8 0

600,00 + 40,00 + 700 + 30 + 9 is 640,639 in expanded form

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alekssr [168]

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Step-by-step explanation:

Given

See attachment

Required

Area of $\triangle PQR$

From the attached image, we have:

$P = (6,10)$

$Q = (10,8)$

$R = (6,4)$

The area is then calculated as:

$A = \frac{1}{2}|(x1y2 - x2y1) + (x2y3 - x3y2) + (x3y1 - x1y3)|$

So, we have:

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Using a calculator:

$A = \frac{1}{2}|-24|$

Remove absolute bracket

$A = \frac{1}{2} * 24$

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