You can model the entrance to a mine shaft using the equation
2 answers:
Hey there,
<span>You can model the entrance to a mine shaft using the equation
y = − 2 (x + 4)(x − 4), where x and y are measured in feet. The x-axis represents
the ground. Find the width of the entrance at ground level.
Based by looking on this question above, your correct answer would be . . .
</span>
and 
<span>
Hope this helps.
~Jurgen</span>
<span>You can model the entrance to a mine shaft using the equation
y = − 2 (x + 4)(x − 4), where x and y are measured in feet. The x-axis represents
the ground. Find the width of the entrance at ground level.
Based by looking on this question above, your correct answer would be . . .
</span>
<span>
Hope this helps.
~Jurgen</span>
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Answer:
Step-by-step explanation:
x-7y = -49
i) move x to the right-hand side and change its sign
-7y = -49-x
ii) change the signs on both sides of the equation
7y = 49+x
iii) divide both sides of the equation by 7
iv) use the commutative property to reorder the terms
* commutative property: a+b = b+a