Write $( x + y ) ( \bar { x } + \bar { y } )$

question 15

Short Answer

Write $( x + y ) ( \bar { x } + \bar { y } )$ as a sum-of-products in the variables x and y .

Solve for an unknown in percentage problems, specifically finding the base.

Compute missing values in problems involving percentage increases or decreases.

Solve for an unknown in percentage problems, specifically finding the percentage.

Calculate the total in real-world scenarios involving percentages.

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Definitions:

Sodium

A chemical element with symbol Na and atomic number 11, essential for many body functions, including maintaining cellular function and blood pressure.

Urea

A waste product formed in the liver that is transported in the bloodstream to the kidneys for excretion in urine, commonly used to measure kidney function.

Nephrons

Nephrons are the functional units of the kidney, responsible for filtering blood and forming urine.

Phosphorylation

A biochemical process that involves the addition of a phosphate group to a molecule, often altering its function.