How many x-intercepts appear on the graph of this polynomial function? f (x) = x Superscript 4 Baseline minus 5 x squared

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°