Question

Help me please:( i need the scientific notation.

Answer 1

Answer:

2.389 x 10^5

Step-by-step explanation:

First, write both numbers out. Move the decimal point right however many times the exponent says. For 8.9, we move the decimal right 3 times, and we would move it right 5 times for 2.3.

230000

+   8900

238900

Now let's convert this to scientific form. The beginning number in scientific form has to be between 1 and 10, so move the decimal point left until you get a number that fits. Here, we will move it 5 times.

2.38900

Because we've moved it left 5 times, we make the exponent 5.