The air helps regulate Earth's atmosphere so that
it is not too cold or too hot for life on Earth. The
air also protects organisms from the sun's
harmful radiation. These are reasons air is an
important resource. Which of these claims
provides a major reason that air is considered an
important natural resource?

a police officer and a ambulance

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.