Question

The square root of a number is between 8 and 9. Which of the following could be the value of that number? Select all that apply.

8.6

74

80

81.5<---my answer

Which of the following shows a number as a product of prime numbers in exponential form? Choose all that apply.



24 · 10


34 · 7 · 4


23 · 52 · 7


33 · 11

Answer 1

The square root of 81 is 9, so something bigger than 81 has a greater root than 9

Answer 2

You want to square root to be between 8 and 9

if the root of a number is 8, that number is 8^2
same for 9, 9^2


so you want a number between 8^2 and 9^2

Answer 3

ignore the second question i have to fix that

Answer 4

so 80?

Answer 5

yeah, any numbers between 64 and 81

Answer 6

80 and 74 are between 64 and 81

Answer 7

so those are the two correct answers right?

Answer 8

yep

Answer 9

thank you, can you help me with a second question i have?

Answer 10

yes

Answer 11

yeah you have to put a^b , the hat thing to show which ones are powers in the answers

Answer 12

Which of the following shows a number as a product of prime numbers in exponential form? Choose all that apply.



2^4 · 10


3^4 · 7 · 4


2^3 · 5^2 · 7


3^3 · 11

Answer 13

@DanJS