Verify that parallelogram abcd with vertices a(-5,-1), b(-9,6), c(-1,5) and d(3,-2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals.

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?