The first answer
-40y3/x5
Answer:
(5³)⁹/5¹² = 1
Step-by-step explanation:
(5³)⁹/5¹²
Add the exponents
5¹²/5¹²
Divide
1
Answer:
a) x = 5
b) x = 4
Step-by-step explanation:
a)
= 9.5
3x+4 = 9.5(2)
3x = 19-4
x = 15/3
x = 5
b)
= 5
7+2x = 5(3)
2x = 15-7
x = 8/2
x=4