Question

Help! Will medal and fan!

Answer 1

The circumference of the Earth is approximately 131,000,000 ft.

a. Write this number in scientific notation and tell how you knew whether to use a positive or a negative exponent.

b. The circumference of Mars is 7.00 x 107. Which planet is larger, and by how many feet? Write the answer in both standard and scientific notation.

Answer 2

I just need B.

Answer 3

7 * 10^7 = 70,000,000

Answer 4

What is *

Answer 5

So, Mars is bigger?

Answer 6

difference between earth and mars = 131,000,000 - 70,000,000

Answer 7

No earth is bigger

Answer 8

It means 61,000,000 in scientific and standard I think.

Answer 9

61,000,000 is standard form

what is that in scientific notation/

Answer 10

I don't know. I'm confused on this.

Answer 11

how many digits are there after the 6 in 61,000,000

Answer 12

count them - starting with the 1

Answer 13

The scientific notation for 7.00 x 107 is 7.49

Answer 14

7?

Answer 15

????

Answer 16

7.49

Answer 17

right there are 7
so 61,000,000 = 6.1 * 10^7 in scientific notation

Answer 18

yep

Answer 19

the first part of scientific notation must be a number between 1 and 10

Answer 20

I get it now! Thank you!!!!!!! ///>/,/<///