How do you write an equation of a parabola witha focus and directrix?

The amount of radioactive isotope decays in half every year. The amount of the isotope can be modeled by f (x) = 346 (1/2^x and f (1) = 173. What does the 173 represent? A. The starting amount of the isotope B.

On a number line, what is the distance between - 29 and 100?

For what value of a are the graphes of 6y=-2x+4 and 2y=ax-5 paralle? perpendicular

Kate is 17 years old, and Victor is 12 years younger. In how many years will Kate be twice as old as Victor?

Write the following using algebraic notations all i think of a number half it and takeaway 4

A scuba diver starts at sea level and travels to a position that is a little lower than - 18 feet. Use the drop-down menus to complete the statements about the scuba diver's position 1.

lucy is standing in a stadium and has the option of running up a staircase 0r down a staircase for exercise. The function f (x) = 1/25 ...

Jacob is filling up a large water container. He uses 2/3 of a gallon to fill 3/4 of the container. How many gallons will he need to fill the whole container? Write a division equation to represent this question and solve.

How many ninths does it take to make the same amount 1/3

The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15. When solved for C, the equation is