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3 years ago

Determine whether the value is a discrete random variable, continuous random variable, or not a random variable.

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

3 0

Bdnkdlkcjfklanxnsakcnsklajcskfhsilwnfydkkwkfjsowcuwkdhksiwufhhfkkw
The answer is A

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Two ice skaters started on opposite ends of a 200-foot-long rink and then skated toward each

SSSSS [86.1K]

Answer:

The proportion that can be used to find x is;

(200-x)/x = 7/6

Step-by-step explanation:

Now, we want to find the proportion which can be used to find x.

From the question, we are told that the father skater traveled 7 ft for every 6 ft of the slower skater;

this means that the ratio of their speed is 7:6

Now, when they passed each other , the slower skater has traveled x ft, what this means is that the faster skater will have traveled a distance of (200-x) ft at that moment they passed each other.

Mathematically, since their time is equal i.e the time they used to pass each other, then, the ratio of their distances is same as the ratio of their speeds;

Hence;

(200-x)/x = 7/6 or x/(200-x) = 6/7

3 0

3 years ago

Evaluate The Exsperession. Show your work 6.7-3^2.9+4^3 or

Rom4ik [11]

Answer:

25

Step-by-step explanation:

Hi there !

6×7 - 3²×9 + 4³ =

1. raise the numbers to power

= 6×7 - 9×9 + 64

2. we perform the multiplications

= 42 - 81 + 64

3. we perform addition and subtraction

= (42 + 64) - 81

= 106 - 81

= 25

Good luck !

7 0

4 years ago

Read 2 more answers

A box of 15 markers cost is $2.40 how much will a box of 40 marker’s cost

butalik [34]

Answer:

$6.40

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Is it essary to rename 4 1/4 if you subtract 3/4 from it.

Archy [21]

No . because you would then have 2/4 which is 1/2 50%

3 0

3 years ago

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The d

kozerog [31]

Answer: 49.85%

Step-by-step explanation:

Given : The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped ( normal distribution ) and has a mean of 61 and a standard deviation of 9.

i.e. $\mu=61$ and $\sigma=9$

To find : The approximate percentage of lightbulb replacement requests numbering between 34 and 61.

i.e. The approximate percentage of lightbulb replacement requests numbering between 34 and $34+3(9)$ .

i.e. i.e. The approximate percentage of lightbulb replacement requests numbering between $\mu$ and $\mu+3(\sigma)$ . (1)

According to the 68-95-99.7 rule, about 99.7% of the population lies within 3 standard deviations from the mean.

i.e. about 49.85% of the population lies below 3 standard deviations from mean and 49.85% of the population lies above 3 standard deviations from mean.

i.e.,The approximate percentage of lightbulb replacement requests numbering between $\mu$ and $\mu+3(\sigma)$ = 49.85%

⇒ The approximate percentage of lightbulb replacement requests numbering between 34 and 61.= 49.85%

4 0

3 years ago

Determine whether the value is a discrete random​ variable, continuous random​ variable, or not a random variable.

Determine whether the value is a discrete random variable, continuous random variable, or not a random variable.