Step-by-step explanation:
step 1. if the distributive property works for 3*(5+ -5) then since 5 + -5 = 0 then 3*0 =0
step 2. let's give it a try
step 3. 3*(5 + -5) = 3*5 + 3*(-5) distributive property
step 4. 15 + -15 = 15 - 15 = 0 (yes it works).
1) 16 ÷ 4 = 4
2) 144 ÷ 12 = 12
3) 21 ÷ 3 = 7
4) 36 ÷ 2 = 18
p.s - what I did was I multiplied the numbers which were in the equation to get the variable, but for number 2 you don’t multiple, you divide 144 by 12.
Answer:
34
Step-by-step explanation:
Answer:
![\dfrac{x^3}{y^7}](https://tex.z-dn.net/?f=%20%5Cdfrac%7Bx%5E3%7D%7By%5E7%7D%20)
Step-by-step explanation:
Rule of exponents:
![a^{-n} = \dfrac{1}{a^n}](https://tex.z-dn.net/?f=%20a%5E%7B-n%7D%20%3D%20%5Cdfrac%7B1%7D%7Ba%5En%7D%20)
![x^3y^{-7} = x^3 \times \dfrac{1}{y^7} = \dfrac{x^3}{y^7}](https://tex.z-dn.net/?f=%20x%5E3y%5E%7B-7%7D%20%3D%20x%5E3%20%5Ctimes%20%5Cdfrac%7B1%7D%7By%5E7%7D%20%3D%20%5Cdfrac%7Bx%5E3%7D%7By%5E7%7D%20)