For (x + 4)(x + 9) to equal 0, either (x + 4) or (x + 9) must equal

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?