The answer is B. He is incorrect because he should have only 5 factors of 3.
Answer:
Step-by-step explanation:
23x + xy - y + 3y + 5 - 20x + 6xy = 23x - 20x + xy + 6xy -y + 3y + 5
= 3x + 7xy + 2y + 5
Errors:1) The combined coefficients of the x terms should be 3x, not 43x
2) The coefficients of the y terms have been multiplied.
3) The constant was left off.
X + 3x + 4x = 56
8x = 56
x = 7
The shortest piece is 7 inches
The middle piece is 7*3 = 21 inches.
The longest piece is 4*7 = 28 inches
Check
7 + 21 + 28 = 56 It does check and the lengths are correct.
Answer:
Step-by-step explanation:
![\sqrt[3]{2x^5y^7} * \sqrt[3]{4x^4y^2} \\\\2x^3y^3](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B2x%5E5y%5E7%7D%20%2A%20%5Csqrt%5B3%5D%7B4x%5E4y%5E2%7D%20%5C%5C%5C%5C2x%5E3y%5E3)
Answer:
B?
Step-by-step explanation:
