. Given: B is the midpoint of AC, AB = CD Prove: C is the midpoint of BD
B
Statements
Reasons
1. B is the midpoint of AC
1.
2. AB = BC
2.
3. AB CD
3.
4. AB = CD
4.
5. BC = CD
5.
6. C is the midpoint of BD
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)

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25