3 years ago

What is 9 over 10 as an decimal

Mathematics

2 answers:

LiRa [457]3 years ago

4 0

.9, as a percent its 90%

iragen [17]3 years ago

3 0

Answer: 0.9

Step-by-step explanation:

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Help! Exponential Equation WITHOUT CALCULATOR

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$
1.
(2^{x} -2^{-x})^{2} = 4^{2} \\ \\2^{2x}-2*2^{x}*2^{-x} + 2^{-2x} =4^{2} \\ \\2^{2x}-2*2^{x-x} + 2^{-2x} =4^{2} \\ \\ 2^{2x}+ 2^{-2x} - 2=16 \\ \\ 2^{2x}+ 2^{-2x} = 18

\\ \\ 2.( 2^{x})^{3} - (2^{-x}^) ^{3}= (2^{x} -2^{-x})(2^{2x}+2^{x}*2^{-x}+2^{-2x})
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$

$\\ \\ ( 2^{x})^{3} - (2^{-x})^{3} =(4)((18)+1)= 76
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3 years ago

Ratio in lowest terms in 3 different ways<br> 1.18 males to 45 females

vlada-n [284]

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