2 years ago

What are the solution(s) to the quadratic equation 40 – x2 = 0?

Mathematics

1 answer:

Anna35 [415]2 years ago

6 0

Answer:

$x=-2\sqrt{10}, \\x= 2\sqrt{10}$

Step-by-step explanation:

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drek231 [11]

Answer:

$P(1\ and\ 2) = 0.3309$

Step-by-step explanation:

Given

$Red = 3$

$Blue = 4$

$Orange=10$

Required

Probability of selecting 2 orange marbles

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$Total = Red + Blue + Orange$

$Total = 3 + 4 + 10$

$Total = 17$

The probability that the first selection is orange is:

$P(1) = \frac{10}{17}$

Because it is a selection without replacement, the number of orange marbles and the total number of marbles would decrease by 1, respectively.

So, the probability that the selection is orange is:

$P(2) = \frac{10-1}{17-1}$

$P(2) = \frac{9}{16}$

The required probability is:

$P(1\ and\ 2) = P(1) * P(2)$

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$P(1\ and\ 2) = \frac{10*9}{17*16}$

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Step-by-step explanation:

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Which is a zero of the quadratic function f(x) = 16x2 32x − 9?

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A zero of a function is the value of x for which f(x) = 0
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4x + 9 = 0 and 4x - 1 = 0
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