Answer:
221
Step-by-step explanation:
Substitute x = 7 and y = 8 into the expression
5(7)² - 3(8)
= 5(49) - 24
= 245 - 24
= 221
Answer:Idk
Step-by-step explanation:
Get rid of negative exponents by remembering that x^-a= 1/x^a.
6^-3= 1/6^3
Evaluate the exponent
6^3= 216
Final answer: 1/216
Answer:
1/2
Step-by-step explanation:
3-4 -1 1
----------- = ---------- = ---
-14-(-12) -2 2
