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hammer [34]
3 years ago
5

Chin bought 12 pounds of apples for $6. What is the cost of buying 3 pounds of apples? Check your answer.

Mathematics
1 answer:
Ann [662]3 years ago
6 0
I think the answer is $1.50 because if you cross multiply 12/6 and 3/x you should get 12x X 18/12 and end up with $1.50.

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2 years ago
Find the equations of the tangents to the curve y = x²-x-12 at each of the points where the curve crosses the x-axis.​
poizon [28]

Step-by-step explanation:

First, find the zeroes of the parabola

{x}^{2}  - x - 12

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x(x  - 4) + 3(x - 4)

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So at x=-3, our slope of the tangent line is -7 and must pass through (-3,0). So we use point slope formula.

y - y _{1} = m(x - x _{1})

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y =  - 7x - 21

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y = 7x - 28

So the equations of tangent is

y =  - 7x - 21

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6 0
2 years ago
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