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VARVARA [1.3K]
3 years ago
7

Because of three scarf is 26. 25. What is the unit price?

Mathematics
1 answer:
Dimas [21]3 years ago
5 0
Each scarf costs $8.75.
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If you are writing in slope-intercept form:

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What is the value of c such that the line y=2x+3 is tangent to the parabola y=cx^2
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The value of c such that the line y = 2\cdot x + 3 is tangent to the parabola y = c\cdot x^{2} is -\frac{1}{3}.

If y = 2\cdot x + 3 is a line <em>tangent</em> to the parabola y = c\cdot x^{2}, then we must observe the following condition, that is, the slope of the line is equal to the <em>first</em> derivative of the parabola:

2\cdot c \cdot x = 2 (1)

Then, we have the following system of equations:

y = 2\cdot x + 3 (1)

y = c\cdot x^{2} (2)

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Whose solution is shown below:

By (3):

c =\frac{1}{x}

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y = x (4)

(4) in (1):

y = -3

x = -3

c = -\frac{1}{3}

The value of c such that the line y = 2\cdot x + 3 is tangent to the parabola y = c\cdot x^{2} is -\frac{1}{3}.

We kindly invite to check this question on tangent lines: brainly.com/question/13424370

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AYUDAAA PORFAVOOOOOOR!!
galben [10]

Answer:

4

Step-by-step explanation:

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Sara got 720 marks out of 800 in the Basic Level Examination. How many percent of marks did she obtain?​
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90% is obtained by Sara
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