All categories

4 years ago

The graph of the function, f(x) = 3^2 + x + 2, opens(down or up) and has a (minimum or maximum) value.

Mathematics

1 answer:

Snezhnost [94]4 years ago

5 0

<h2>Answer:</h2>

1. The parabola opens upward.

2. It has a minimum value

<h2>Step-by-step explanation:</h2>

The explanation is shown below. Also, the graph of this function is shown below including the vertex.

You might be interested in

A type of long-range radio transmits data across the Atlantic Ocean. The number of errors in the transmission during any given a

Marianna [84]

Answer:

32.33% probability of having at least 3 erros in an hour.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

The mean number of errors is 2 per hour.

This means that $\mu = 2$

(a) What is the probability of having at least 3 errors in an hour?

Either you have 2 or less errors in an hour, or we have at least 3 errors. The sum of the probabilities of these events is decimal 1. So

$P(X \leq 2) + P(X \geq 3) = 1$

We want $P(X \geq 3)$

$P(X \geq 3) = 1 - P(X \leq 2)$

In which

$P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)$

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-2}*(2)^{0}}{(0)!} = 0.1353$

$P(X = 1) = \frac{e^{-2}*(2)^{1}}{(1)!} = 0.2707$

$P(X = 2) = \frac{e^{-2}*(2)^{2}}{(2)!} = 0.2707$

$P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.1353 + 0.2707 + 0.2707 = 0.6767$

$P(X \geq 3) = 1 - P(X \leq 2) = 1 - 0.6767 = 0.3233$

32.33% probability of having at least 3 erros in an hour.

6 0

3 years ago

Please Help! #s 20, 22, 24

wariber [46]

Answer: Your picture is blocked

Step-by-step explanation: Internet or something like that.

7 0

3 years ago

A pet store has three fish tanks, each holding a different volume of water and a different number of fish.

Bad White [126]

For each tank just divide the number of L by the number of fish to get the volume or fish.

For tank A it is 40/5=8, for tank B it is 100/12=8.3, and for tank C it is 180/23=7.8.

If you number them least to greatest, it is (tank C, tank A, tank B)

8 0

3 years ago

Write y=8x as a logarithmic function

nirvana33 [79]

1.First,Log small y to both side

6 0

4 years ago

I just wanna learn can i please just get a day without ads

Virty [35]

Answer:

Ikr, but when you get about 250 points the website stopped giving me ads rn I have 530 pts

7 0

3 years ago