Do the functions have the same concavity?
f(x)= 2x^2-10x-30

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function