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(1/2)^3 * 512 - (-216)

 Jul 1, 2014

Best Answer 

 #2
avatar+26400 
+6

(1/2)^3 * 512 - (-216)   ?

$$\\({1\over 2})^3 * 512 - (-216)\\\\
={1\over 2^3} * 2^9 +216\\\\
={2^9\over 2^3} +216\\\\
=2^{9-3} +216\\\\
=2^6 +216\\\\
=64 +216\\\\
=280$$

 Jul 2, 2014
 #1
avatar
+5

(1/2)^3 * 512 - (-216)

(1/2*1/2*1/2)*512-(-216)

1/8*512-(-216)

1/8*512+216

64+216

280

 Jul 1, 2014
 #2
avatar+26400 
+6
Best Answer

(1/2)^3 * 512 - (-216)   ?

$$\\({1\over 2})^3 * 512 - (-216)\\\\
={1\over 2^3} * 2^9 +216\\\\
={2^9\over 2^3} +216\\\\
=2^{9-3} +216\\\\
=2^6 +216\\\\
=64 +216\\\\
=280$$

heureka Jul 2, 2014

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