can u show me a shorter verison
Answer:
The solution is (0, 4)
Step-by-step explanation:
Please pay attention to the first two equations and drop the last two:
12x−5y=−20 y=x+4 x=x=x, equals y=y=y should ideally be:
12x−5y=−20
y=x+4
Let's find x. Substitute x + 4 for y in the first equation, obtaining:
12x - 5(x + 4) = -20
Carrying out the indicated multiplication, we get:
12x - 5x - 20 = -20, or 7x = 0
If x = 0 then y must be 0 + 4, or 4.
The solution is (0, 4)
Answer:
I believe its C , i took this class
Step-by-step explanation:
Answer:
the answer is A
Step-by-step explanation:
Answer:
C and D
Step-by-step explanation:
using the rules of exponents
A
= ![\sqrt[7]{125^3}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7B125%5E3%7D)
≠ ![\sqrt[3]{125^7}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B125%5E7%7D)
B
(
)^7 = 
≠ 
C
(
)^5 = 
← correct
D
(
)^9 = 
← correct
