What is the focus and directrix of the quadratic equation of f (x) = x2 3x-28

Tony misplaced 7 stamps from his collection. He knows that each stamp of his worth $0.15 and that the total value of them is now only $5.55. write an equation to determine the number of stamps (s) that tony originally had.

The recipe makes enough stew for 6 people, and the ingredients cost $9.75. How much would it cost to serve 24 people? Use the rate table to solve the proportion.

kayden had math and reading homework tonight. kayden can solve each math problem in 5 minutes and he can read each page in 1.5 minutes.

C=5/9 (F-32) using the formula convert 50 Fahrenheit to Celsius.

In the diagram the length of segment TQ is 40 units what is the length of segment QV

Becky works 16 days each month. how many days will she work in 6 months

Which relationships hold true for the sum of the magnitudes of vectors u and v, which are perpendicular? a. ||u+v||=||u||+||v|| b. ||u+v||=sq rt (||u||^2+||v||^2) c. ||u+v||

Efetue os cálculos a seguir e, quando possível simplifique o resultado

Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when water is moving from a tank the flow rate is negative. Each tank begins with 250 gallons of water.

An airplane flies 1,500 miles in 3 hours. At the same rate, how far will it go in three-fourths of a day?