Question

Which numbers are greater than 5 × 10−6?

Choose all answers that are correct.

A.
9 × 10−8

B.
7 × 10−6

C.
5 × 10−4

D.
4 × 10−6

E.
8 × 10−9

Answer 1

@ospreytriple

Answer 2

ABCE i think

Answer 3

I suggest writing all the numbers out in standard notation. It then becomes much clearer. For example, \(9 \times 10^{-8} = 0.00000009\), which is less than \(5 \times 10^{-6} = 0.000005\).

Answer 4

A B C E i think

Answer 5

Not quite. Here's another way to look at it. Numbers with higher powers of 10 are larger than number with lower powers of 10. Therefore, any number with a power of 10 of -6 is larger than any number with a power of 10 of -7, or -8, or -9, etc.

Answer 6

And for number with the same power of 10, just look at the base number.

Answer 7

b and c

Answer 8

Correct. Well done.

Answer 9

i fan you ok

Answer 10

Thanks