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Oxana [17]
3 years ago
11

Which table shows a function that is decreasing only over the interval (-1, ")?

Mathematics
2 answers:
3241004551 [841]3 years ago
7 0
The answer is x bc when you decreasing the interval f(x) it will equal (-2)
ch4aika [34]3 years ago
4 0

Answer:

D!!!!!!???????!!!!!!!!!!!!?????

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3 years ago
3x^2+kx=-3 What is the value of K will result in exactly one solution to the equation?
Scorpion4ik [409]

Answer:

For k = 6 or k = -6, the equation will have exactly one solution.

Step-by-step explanation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = (x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

If \bigtriangleup = 0, the equation has only one solution.

In this problem, we have that:

3x^{2} + kx + 3 = 0

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a = 3, b = k, c = 3

\bigtriangleup = b^{2} - 4ac

\bigtriangleup = k^{2} - 4*3*3

\bigtriangleup = k^{2} - 36

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\bigtriangleup = 0

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k = \pm 6

For k = 6 or k = -6, the equation will have exactly one solution.

3 0
3 years ago
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