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3 years ago

WILL MARK BRAINLEST

1 answer:

7 0

Answer: The answer is 31.25 because The mean of 16 items was found to be 30. So once you checked, it was that 2 items were wrongly taken as 22 and 18 instead of 32 and 28 respectively. Sum = mean no of items = 30 16 = 480

(32 +28) – (22 + 18) = 20

Correct mean = = 31.25

Step-by-step explanation: My apologize that I took long I hope this helps.

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$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
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\left( 2^8\cdot 3^{-5}\cdot 6^0 \right)^{-2}\left( \cfrac{3^{-2}}{2^3} \right)^4\cdot 2^{28}\impliedby \textit{let's do the first group}
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$

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this is going to take me a long time to explain but here we go

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