What is 4.9 × 10−3 in standard form?
a) 0.0049
b) 0.049
c) 490
d) 4,900

B) 0.049

Step-by-step explanation:

4.9 × 10^(−3)

= 4.9 x 0.001

= 0.049

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.