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3 years ago

4k/19m simplify this fraction

Mathematics

2 answers:

grin007 [14]3 years ago

7 0

4k/19m Final result : 4km /19

Step by step solution :Step 1 : k Simplify /19 Equation at the end of step 1 : k (4 • /) • m 19 Advertising SkipStep 2 :Final result : 4km/ 19

Olin [163]3 years ago

5 0

The answer is 4km over 19

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How many solutions are there for quadratic graphed below:

masha68 [24]

Answer:

No solutions

Step-by-step explanation:

The graph does not contact the x axis

There are no real answers for this reason.

6 0

3 years ago

The probability of rolling a number less than 3 on a number cube 2/6. Jennifer rolls a number cube 60 times how many times shoul

Savatey [412]

Answer:

20 times

Step-by-step explanation:

Given the following :

Probability of rolling a number less than 3 on a number cube:

Required outcome = (1, 2)

Total possible outcomes = (1, 2, 3, 4, 5, 6)

Required outcome / Total possible outcomes

= 2 /6

= 1/3

Hence, if number cube is rolled 60 times, number of times a number less than 3 is expected :

(Probability of obtaining a number less than 3 in one roll × number of rolls)

= (1 / 3) × 60

= 60 / 3

= 20 times

5 0

3 years ago

New York City is the most expensive city in the United States for lodging. The mean hotel room rate is per night (USA Today, Apr

kow [346]

Answer:

$P(X$

Step-by-step explanation:

Assuming a mean of $204 per night and a deviation of $55.

a. What is the probability that a hotel room costs $225 or more per night (to 4 decimals)?

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean"

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Let X the random variable that represent the cost per night at the hotel, and for this case we know the distribution for X is given by:

$X \sim N(204,55)$

Where $\mu=204$ and $\sigma=55$

And let $\bar X$ represent the sample mean, the distribution for the sample mean is given by:

$\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})$

We are interested on this probability

$P(X>225)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X>225)=P(\frac{X-\mu}{\sigma}>\frac{225-\mu}{\sigma})$

$=P(Z>\frac{225-204}{55})=P(Z>0.382)$

And we can find this probability on this way:

$P(Z>0.382)=1-P(Z$

8 0

3 years ago

Together, Sala and Terry saved $10.00. Sala. saved D dollars. Write an expression for the amount Terry saved.

vodka [1.7K]

Let Terry Saved be T dollars .

The Expression will be

$\\ \rm\longmapsto Sala+Terry=\$10.00$

$\\ \rm\longmapsto D+T=\$10.00$

3 0

3 years ago

Read 2 more answers

Which sentence best describes the independent and dependent variables in the following problem? The parking garage charges $3 fo

alexandr402 [8]

Ok so the dependent variable would be $1.45 for each addition hour. The cost depends on every hour so u can't really calculate it unless u have the hours.
$3 is independent since it's only charged on the first hour. It doesn't rely on any other information.

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3 years ago