Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y = 2 x squared minus x + 3
a.
D: all real numbers
R: (y greater-than-or-equal-to 2.875)
c.
D: (y less-than-or-equal-to negative 0.25)
R: (y less-than-or-equal-to 2.875)
b.
D: all real numbers
R: (y less-than-or-equal-to 3)
d.
D: all real numbers
R: (y less-than-or-equal-to 3.125)

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Find the area of an equilateral triangle with a side of 6 inches

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm