Arunning relay team ran a 400 meter race in a record-setting time of 36 seconds. what was their average speed to the nearest tenth of a meter per second?

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Find the zeros of each function. f(x) = x^2 + 5x - 6

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.