Blood urea nitrogen (BUN) is a measure of the amount of urea in the blood (R). It provides useful information about your health. The liver produces urea as a waste product of the digestion of proteins (R, R). Urea is a safe vehicle to get rid of excess nitrogen from the body.
Algebra is important for future employment opportunities in Californiaâs increasingly knowledge-based economy, even in jobs con-sidered to be âblue collar.â For example, an applicant must have passed Algebra I to enter an electrician apprenticeship program. But if students are aiming for college, algebra is essential.
His introduction of the Indian concept of zero, along with the other nine digits, meant that mathematicians could express any number. Algebra was a method for moving terms from one side of an equation to the other to find the value of an unknown. He also described how to find the square root of a number, and was the first to demonstrate the concept of exponents for unknown variables.