Write the equation of the circle with center (2, -3) and a radius of 4.
a) (x + 2)^2 + (y - 3)^2 = 4
b) (x - 2)^2 + (y + 3)^2 = 4
c) (x + 2)^2 + (y - 3)^2 = 16
d) (x - 2)^2 + (y + 3)^2 = 16

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Select all the statements that apply to this figure