Answer:
60cm²
Step-by-step explanation:
as the green and blue box are squares they will have the same sides, length.
so all the sides in the green and blue squares are 3
the pink and orange rectangles : the longer is 7 the shorter one is 3
for the top length of the whole shape is = 7 +3 = 10
side length of the shape is 3 + 3= 6
so then you do 6 x 10 = 60
60 cm² is the answer :)
The number of cows is given by

So, after
years, the number of cows will be

We want this number to be twice as much as the original:

First of all, we can cancel 14 from both sides:

Finally, on the right hand side, we can use the exponent rule

to get

To solve this equation, we must impose that the two exponents are the same:

And clearly this is true if and only if
. So, it will take 5 years for the cow heard to double in number.
You can do the exact same steps to find the doubling time for the sheeps.
Answer:
Step-by-step explanation:
Yes it is a rational number