Midterm Exam 2020 "
Last year there were 43 science projects submitted by students at a science fair. This year there are 52 science projects. To the nearest tenth, what
is the percent of change in the number of science projects submitted?

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