Enzymes are catalysts that affect biological reactions. How do enzymes change the rates of reactions in the body?
A. Enzymes increase reaction rates by lowering the activation energy.
B. Enzymes decrease reaction rates by lowering the activation
energy
C. Enzymes decrease reaction rates by decreasing the energy of the
products.
D. Enzymes increase reaction rates by increasing the energy of the
reactants.

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.

la respuesta es si te gusta hacer lo que siempre haces cuando nunca ves a alguien en el espejo porque sabes que no siempre están ahí.