if j = k, then j + 9 = k + 9 represents which algebraic property?
a) additive identity
b) additive inverse
c) addition property of equality
d) associative property of addition

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn