Rotate the following triangle 90 degrees.
A(4, -3) B(-12, 8) C(6, -4)

given vertices of triangle ABC

A(4, -3) B(-12, 8) C(6, -4)

Rotating through 90°

P (x , y) > P' (y , -x)

A(4, -3) > A' ( -3 , -4 )

B(-12, 8) > B' (8 , 12 )

C(6, -4) > C' (-4 , -6)

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)