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2 years ago

What is the area of a square with a perimeter of 64 mm

Mathematics

1 answer:

pashok25 [27]2 years ago

5 0

Answer:

A =256 mm^2

Step-by-step explanation:

The perimeter of a square is given by the formula

P = 4s where s is the length of a side

64 = 4s

Divide each side by 4

64/4 =4s/4

16 = s

To find the area of a square, use the formula

A =s^2

A = 16^2

A =256 mm^2

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alexdok [17]

Answer:

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Step-by-step explanation:

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Answer:

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2 years ago

use the plot of the concentration of cu(no3)3 versus absorbance provided. if the absorbance of an unknown was determined to be 0

Helen [10]

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Linear regression describes the relationship of two variables. It may not be exact but it is the line that best fit the data. The equation for a linear regression is in the form y = bx + a, where x and y are the two variables.

If the absorbance of an unknown was determined to be 0.67 absorbance units, using the linear regression equation provided from the plot, substitute the value of absorbance to the variable y and solve for the value of x or the concentration.

y = 3.8674x - 0.1657

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Hence, the concentration is 0.2161 M.

Learn more about linear regression here: brainly.com/question/25311696

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