Use a method of completing the square in order to identify the function f(x) = x2 + 14x - 15 in vertex form, f(x) = a (x - h) 2 + k. O ()
f(x) = (x+7) 2 - 64
O f(x) = (x-7) 2-64
O f(x) = (x+7)2 +64
Of(x) = (x-7) 2 +64

The circumference of a circle is 5 pi cm. what is the area of the circle?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?