Find the area of a triangle whose base is 4 2/3 and altitude 8 4/7 feet

20 ft^2.

Step-by-step explanation:

Change the mixed numbers to improper fractions.

4 2/3 =  (12+2) / 3 = 14/3

8 4/7 =(56+4)/7 = 60 / 7

The area of the triangle = 1/2 * base * altitude

= 1/2 * 14/3 * 60/7

= 840 / 42

= 20 (answer).

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)