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poizon [28]
3 years ago
15

What is the solutions to the equation 5a^2-44=81?

Mathematics
2 answers:
galina1969 [7]3 years ago
4 0

{(5a)}^{2}   - 44 \: = 81 \\  {(5a)}^{2}  = 81 + 44 \\  {(5a)}^{2}  = 125 \\ 5a = 5 \sqrt{5}  \\ a \:  =  \sqrt{5}

Pavlova-9 [17]3 years ago
3 0

The answer is attached. good work

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A carpenter has 16 1/2 m of wood. He cuts the wood into pieces that are each 2 3/4 m long. How many pieces of wood does the carp
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A backyard is 50 feet by 100 feet what's its area
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The answer to the question is

The ratio of the two gas pressures   \frac{P_{x} }{P_{y} } , that is Px to Py = 1/6

Step-by-step explanation:

Let the gases Volumes be V₁ and V₂

Where volume of X = V₁ and

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∴ V₂  =  \frac{1}{2} × V₁

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The pressure of the gas in X is Pₓ and the pressure of the gas in Y is  P_{y} then we have

P₁ × V₁  = n₁ × R × T₁ , and P₂ × V₂ = n₂ × R × T₂

(P₁ × V₁)/(n₁ × T₁) = (P₂ × V₂)/(n₂ × T₂)

but T₁ = T₂

Therefore

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(P₁ × V₁)/n₁ = (P₂ ×  \frac{1}{2} × V₁ )/(3 × n₁) from where

P₁ /P₂ =  (\frac{1}{2} × V₁ × n₁)/(V₁×3 × n₁) =0.5/3 = 1/6

The ratio of \frac{P_{x} }{P_{y} } = 1/6

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