20 = 40e^-0.1446t
e^-0.1446t = 0.5
t = ln 0.5 / -0.1446
t = 4.8 days
Answer:
(x+1)(x+8) When factoring squares whose squared coefficient is one the roots must add up to the coefficient of the slope and multiply out to the intercept value.
R - 4.5 < 11
—
r would be 15.5
[ r = 15.5 ]
Answer:
NM corresponds with DC, and the scale factor is 3
