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gayaneshka [121]
2 years ago
5

The sum of blank and 7x^2 is 10x^2 Answer choice is 3x^2 or -3x^2

Mathematics
2 answers:
raketka [301]2 years ago
6 0

Answer:

-3x^2

Step-by-step explanation:

Vanyuwa [196]2 years ago
5 0

Answer:

Step-by-step explanation:

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Use implicit differentiation to find an equation of the tangent line to the curve at the given point.
andrew11 [14]

Differentiating both sides of

x^2 + 2xy - y^2 + x = 20

with respect to x yields

2x + 2y + 2x \dfrac{dy}{dx} - 2y \dfrac{dy}{dx} + 1 = 0 \\\\ \implies (2x-2y) \dfrac{dy}{dx} = -1 - 2x - 2y \\\\ \implies \dfrac{dy}{dx} = \dfrac{1 + 2x + 2y}{2(y-x)}

At the point (3, 4) (so x=3 and y=4), the tangent line has slope

\dfrac{dy}{dx} = \dfrac{1 + 2\times3 + 2\times4}{2(4-3)} = \dfrac{15}2

Then the tangent line to (3, 4) has equation

y - 4 = \dfrac{15}2 (x - 3) \implies \boxed{y = \dfrac{15}2 x - \dfrac{37}2}

7 0
1 year ago
What is the solution to the equation?<br> 2<br> a+53 =<br> =9
Andre45 [30]

Answer:

-22

Step-by-step explanation:

8 0
3 years ago
Which statement is true about the potential<br> solution x = -5?
Vlad1618 [11]

Answer:

The answer to this question is d

4 0
2 years ago
Read 2 more answers
Can anyone help with this?
Rufina [12.5K]

Answer:

Second option is the right choice.

Step-by-step explanation:

SSS.

6 0
2 years ago
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Which value in the replacement set is a solution to this equation? 2n + 5 = 27 Replacement set: {11, 12, 13} Drag the solution i
Alchen [17]
11 is the answer to your question.

2×11=22

22+5=27
6 0
3 years ago
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