Question

I will give brainliest

Answer 1

Answer:

7. The numbers 14/81 are relatively prime

8. b=3

9. 0.00001

19. 11

Step-by-step explanation:

7. Relatively prime numbers have no common factors. We only have to factor each number and compare

14=2*7

35=5*7

38=2*19

81=9*9

91=7*13

The first two numbers have 7 in common

The second have 2 in common

The third set have no common factors

The fourth set have 7 in common

The numbers 14/81 are relatively prime

8. $b^{-3}=\frac{1}{27} => b^3=27 => b=\sqrt[3]{27} =3$

9. $10^{-5}=\frac{1}{100000}=0.00001$

10. 100,000,000,000=10*10*...10 as many times as zeroes there are, so

$100,000,000,000=10^{11}$