8*8 ((4-4) 6+6)=? Please answer, and if you can explain how you got it!

1 answer:

5 0

8*8((4-4)6+6) =

64((4-4)6+6) =

64((4-4)12)=

64((0)12)= 0

Anything times 0 = 0

You could have easily written it as 64((0)12) = 0

Was there a +/- sign missing between the ((4-4)6+6)? If so it will change your answer.

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Answer:

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Step-by-step explanation:

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by using the extended Pythagoras for baselines opposite other than 90 degrees.

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in our example the angle 24/30 is opposite of the side 18.

so,

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324 = 1476 - 1440×cos(angle 24/30)

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Try this:
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2) there are 0.2*90=18 gal. of pure antifreeze in the 20% solution. If 'x' gal. is the weight of pure antifreeze in 50% sol. and 18 gal. is the weight of pure antifreeze in 20% sol., it is possible to make up an equation after mixing: 0.4(x+18).
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