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3 years ago

1,3,7,15,31 I need to know the next 3 numbers please

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

8 0

Answer:

1,3,7,15,31,63,127,255

Step-by-step explanation:

Its doubling the number and adding 1.

1(2)+1=3. 3(2)+1=7. 7(2)+1=15. 15(2)+1=31. 31(2)+1=63. 63(2)+1=127. 127(2)+1=255

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Answer:

Step-by-step explanation:

So we have the equation:

$A=\frac{1}{2}(12)(3+7)$

And we want to find out which of the answer choices is not equivalent.

Thus, let's go through each of the choices.

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This is correct.

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And if we multiply straight across:

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This is also correct.

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We'll get choice B. So, choice B is correct.

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This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

$A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)$

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$\frac{12}{2}\times\frac{10}{2}$

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$3(2+1)\text{ indeed equals } 3(2)+3(1)$

However:

$3(2\times1)\text{ does not equal} 3(2)\times3(1)$

So, choice D is not equivalent.

So choice D is our answer :)

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3 years ago

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vovangra [49]

Answer:

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