Extra points plz urgent
the main products of technological development are inventions, processes and systems. the main products of scientific investigation are
a.
facts, laws and theories
b.
tools, machines, and data
c.
technology, science, and philosophy
d.
inventions, processes and systems

A

Explanation:

I was on a study island with this and it blanked another word

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.

the answer is a and have a great day