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Veseljchak [2.6K]
3 years ago
15

Find the parabola with equation y = ax2 + bx whose tangent line at (3, 12) has equation y = 10x − 18. y = incorrect: your answer

is incorrect.
Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0
For these questions to be true and the equation of the tangent to have an equal y to the equation of the parabola i guess there has to be a "c" and in that case integrate the equation of the tangent you will have a = 5 and b = -18 then you substitute in the equation of the parabola with the point you have you will find that "c" = 21 and so the equation of the parabola becomes y = 5x^2 - 18 x +21
 
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Rainbow [258]
It would be 400+700h=1800
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3 years ago
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Talja [164]

Answer:

angle B = 78.46°

Step-by-step explanation:

Use the cosine ratio

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denis-greek [22]
1) Answer: 21
As y varies directly with x, this means that the ratio y/x is always a constant.
In other words, the equation can be written as y = kx, where k is a constant term.

Thus, -\frac{14}{4} = -\frac{y}{6}
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2) Answer: C
Exactly the same process as above.
Here's another method:
25 = k(140)
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3 years ago
How many solutions does 3x = 2x + x have
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soldier1979 [14.2K]
I think the answer would be 1. 
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3 years ago
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