Which of the following statements is correct? a. the freezing and boiling temperatures of a substance are the same.
b. the freezing and melting temperatures of a substances are the same.
c. the melting and boiling temperatures of a substance are the same.
d. the melting, freezing, and boiling temperatures of a substance are the same.

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.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter