From a parllellogram having 14cm base and 15cm height a circle of radius 7cm out what is the area of the remaining portion

The area of the remaining portion is 56 sq cm.

Step-by-step explanation:

The base of the parallelogram is 14 cm.

The height of the parallelogram is 15 cm

Now, the Area of the parallelogram = Base x Height

Area of the parallelogram  = 14 cm x 15 cm  = 210 sq cm

Now, radius of the cut out circle= 7 cm

So, Area of the circle =

So, the area of the cut out circle = 154 sq cm

Now, the left out area = Area of the parallelogram - Area of the circle

= 210 sq cm  - 154 sq cm = 56 sq cm

Hence, the area of the remaining portion is 56 sq cm.

step-by-step explanation:

i am not sure sorry : c

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)