Question

WILL MEDAL!!!!
6. Suppose that the diameters of different types of hairs are 1.7*10^-4cm, 1.4*10^-3cm, 1.2*10^-5cm, and 1.9*10^-4cm? What is the order of the hairs from least to greatest diameter?
a. 1.9*10^-4, 1.7*10^-4, 1.4*10^-3, 1.2*10^-5
b. 1.2*10^-5, 1.7*10^-4, 1.9*10^-4, 1.4*10^-3
c. 1.9*10^-4, 1.7*10^-4, 1.2*10^-5, 1.4*10^-3
d. 1.2*10^-5, 1.4*10^-3, 1.9*10^-4, 1.7*10^-4

7. What is the expression written using each base only once? (-4)^-6 * (-4)^7
a. 4^13
b. -4
c. 13
d. 1

Answer 1

@thedogkeeper

Answer 2

1,47*10^-4=1.47/1000 so as the denominator get bigger the value get smaller ....
10^-5 is the smallest

Answer 3

-4^-6*-4^7
during multiplication we add the powers if the base are the same
-4^(-6+7)=-4^1=-4

Answer 4

the answer for both is B