fruit flies either brown body or a black body.. the allele for a brown body (B) is dominant to the allele for a black body (b). brown frit fly was crossed with a black fruit fly as shown below. what is the probability of a resulting offspring being black? ​

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.