the set of real numbers less than or equal to -4

For any real numbers x, y, and z, if z=x+|y| which of the following must always be true?

Let a and b be real numbers. Describe the graph of r = a cos (theta + b) as much as possible. (The i...

Let a and b be real numbers. The complex number 4 - 5i is a root of the quadratic z^2 + (a + 8i) z +...

Let a, b and c be real numbers such that a^2 + ab + b^2 = 9 b^2 + bc + c^2 = 52 c^2 + ca + a^2 =...

If X,y,a and b are real numbers and if x+yi = a/b+cosp+isinp , show that (b^2-1)(x^2+y^2)+a^2 =2abx

For all real numbers x, except x = 0 and x=1, the function f is defined by f(x/(x - 1))=1/x. Suppose...

1. All real numbers that are less than -3 or gre Ox<-3 or x ≥ 5 Ox<5 or x ≥ −3 Ox≤-3 or x>5 Ox≤-3 or...

Let a and b be real numbers such that a^3 + 3ab^2 = 679 and a^3 - 3ab^2 = 673. Find a - b.

Let a and b be real numbers such that a + b = 4 and a^4 + b^4 = 16. (a) Find all possible values...

If a and b are real numbers, which equation represents the Associative Property of Multiplication?...

Question