Its A because Sue ran 7 miles more and you’re supposed to add the amount of miles Due ran not subtract them.
To find Y we must cancel X out by making it 0.
4.2(0) - 1.4y = 2.1
-1.4y = 2.1
Divide both sides by -1.4 to get the Y by itself.
Y = 2.1/-1.4
Y = -1.5
Answer:
3(2 - y)(2 + y)(4 + y²)
Step-by-step explanation:
48 - 3y⁴
Take 3 common:
3(16 - y⁴)
16 is 4² and y⁴ is (y²)²
3(4² - (y²)²)
Using a² - b² = (a - b)(a + b)
3(4 - y²)(4 + y²)
Again, 4 = 2²
3(2² - y²)(4 + y²)
3(2 - y)(2 + y)(4 + y²)
