The quadratic equation x^2+9=0

has solutions x = 3i and x = -3i. How many times will the graph of

f(x)=x^2+9

cross the x-axis? Explain.

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8