3 years ago

PLZZZ ANSWER I BEG U

Mathematics

1 answer:

AfilCa [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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shepuryov [24]

5, -4. that might not be right, though

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729 divided 10 to the 3rd power

grin007 [14]

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0.729

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What is three squared minus two thirds?

Tems11 [23]

three squared minus two thirds

$3^2-\frac{2}{3}$

three square = 3 x 3 = 9

$\begin{gathered} 3^2-\frac{2}{3}=9-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \end{gathered}$

Least common factor of 1 and 3 is 3

$\begin{gathered} 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{27-2}{3} \\ 3^2-\frac{2}{3}=\frac{25}{3} \end{gathered}$

Three squared minus two third is twenty five by three.

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1 year ago

Can someone please help me with this its urgent I don’t get it

Varvara68 [4.7K]

Answer:

$1,221

Step-by-step explanation:

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3 years ago

Determine the solubility for cuc2o4(s) in pure water. Ksp for is 2. 9 × 10^-8

Elena-2011 [213]

Based on the elements and charges in Copper (II) Oxalate, CuC₂O₄(s), the solubility in pure water is 1.7 x 10⁻⁴ M.

<h3>What is the solubility of Copper (II) Oxalate in pure water?</h3>

The solubility equilibrium (Ksp) is 2.9 x 10⁻⁸ so the solubility can be found as:

Ksp = [Cu²⁺] [C₂O₄²⁻]

Solving gives:

2.9 x 10⁻⁸ = S x S

S² = 2.9 x 10⁻⁸

S = 1.7 x 10⁻⁴ M

Find out more on solubility at brainly.com/question/23659342.

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2 years ago