What is 4,500,000,000 in scientific notation? A. 45 x 10^-7
B. 4.5 x 10^9
C. 4.5 x 10^-9
D. 4.5 x 10^8

B.  4.5 x 10^9.

Step-by-step explanation:

Scientific notation is of the form:

N x 10^n   where  1  ≤ N < 10 and n is an integer ( ≠ 0)

We count the number of digits after the first one ( 4) - this comes to 9.

So the correct  answer is 4.5 * 10^9.

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation: