The mass of the earth is about 5,974,000,000,000,000,000,000,000, kilograms. write this number in scientific notation

5.974 x 10^24

Step-by-step explanation:

put a decimal behind the first number.  then count how many times that decimal had to get from the original decimal place to the new one, in this case, it moved 24 times.  then write the formula out.

your answer would be 5.974x10

Hope this helps!

25.3

step-by-step explanation:

1st step

add 3+6

=9

multipy 9*3

=37

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm