Show your work for the right answer

a^5 * a^4 / a^2

i do know that the answer is a^7 but i don't remember how to show my work to get the answer

= a^7

Step-by-step explanation:

Given in the question,

a^5 * a^4 / a²

To find,

show working

As we know that to divide exponents (or powers) with the same base, we subtract the exponents. Division is the opposite of multiplication, so when multiplying the exponents (or powers) with the same base add the exponents.

a^5 * a^4 / a²

= a^(5 + 4) / a²  (Multiplying)

= a^9 / a²

= a^(9 - 2)          (Dividing)

= a^7  

hence shown

answer: 1 and 3

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional