A lake covers a surface area of about 30.000 square miles. How can you show the stimated area of the lake as a whole number multiplied by a power of ten?

Area of the lake is 3 * 10^4 square miles

Step-by-step explanation:

Here, we want to show the area of the lake as a whole number multiplied by a power of 10.

From the question, we are told that the area of the lake is 30,000 square miles.

So simply put, we want to express 30,000 as a whole number multiplied by a power of 10

Mathematically we can write 30,000 as 3 * 10,000

We can see that 10,000 is a power of 10 which can be written as 10^4 based on the number of zeros

Hence the area of the lake would be 3 * 10^4 square miles

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)

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours