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3 years ago

13

At the library, there is a four-hour span of time to use a computer. The time slots are 1/3 hour long. How many time slots are t

here?

1 answer:

andreyandreev [35.5K]3 years ago

8 0

Answer:

12 slots

Step-by-step explanation:

1/3 of an hour = 20 minutes

4 hours * 60 =240mins/20mins=12

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Which expressions is not equivalent 2x^2+10x+12?

sergeinik [125]

Answer:

C

Step-by-step explanation:

First, factor the original expression:

As we can see, D is the same as above. Eliminate D.

Go through each of the answer choices.

A:

This is equivalent to what we factored. Eliminate A.

B:

This is again equivalent to what we factored. Eliminate B.

C:

This cannot be simplified and it is not equivalent to what we have previously. C is not the equivalent expression.

7 0

3 years ago

let X represent the amount of time till the next student will arriv ein the library partking lot at the university. If we know t

AlekseyPX

Answer:

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

Mean of 4 minutes

This means that $m = 4, \mu = \frac{1}{4} = 0.25$

Find the probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot:

This is:

$P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2)$

In which

$P(X \leq 132) = 1 - e^{-0.25*132} = 1$

$P(X \leq 2) = 1 - e^{-0.25*2} = 0.393469$

$P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2) = 1 - 0.393469 = 0.606531$

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

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3 years ago

1/8y verbal expression

Brums [2.3K]

The algebraic expression 1/8y verbal expression is: one is divided by the product of 8 and a number.

To decipher the mathematical information in a problem, a verbal expression (or verbal model) uses words. From a verbal model, an equation can often be written.

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4 years ago

HELP ME ANSWER PART C‼️

wel

Answer:

PART C OF WHAT I CAN HELP IF YOU TELL ME

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4 years ago

Read 2 more answers

Which one is greater <br> 0.09 or 0.091

dedylja [7]

Answer:

0.091

Step-by-step explanation:

fill in and make them both thousandths.0.090 and 0.091The second one is larger. 0.091

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3 years ago