5 The volume, V, of a cylinder is equal to the area of its base, B, times its height, h. If
the diameter of a cylinder is 21 feet and its
height is 4.2 feet, which expression
represents Vin cubic meters?
21 feet
4.2 feet
A 217(2.1)
B 4.27(10.5)
C (4.2)
D None of these

What is the vertex form of f(x) = x2 + 6x + 3

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Which of the following inequalities matches the graph? a. 2x+y< 7 b. 2x-y> 7 c. 2x+y< -7 d. the correct inequality is not listed