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frutty [35]
2 years ago
9

A group of friends go to the movies. The function h(x) represents the amount of money spent where x is the number of friends at

the movies. Does a possible solution of (6.5,$95.25) make sense for this function?
Mathematics
2 answers:
viktelen [127]2 years ago
8 0

Answer:

  not really

Step-by-step explanation:

The number of friends (x) is expected to be an integer. 6.5 friends does not really make sense.

_____

There are all kinds of ways this might make sense, but none of them are supported by the information given in the problem statement.

bearhunter [10]2 years ago
3 0
<h2>Answer:</h2>

No, the solution (6.5,$ 95.25) do not make a sense.

Since, the number of people going for a movie can't be in decimals.

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

The function h(x) represents the amount of money spent where x is the number of friends at the movies.

The domain of such a function has to be whole numbers.

Because the number of people that go for a movie must exist as a whole they can't exist in decimals.

( i.e. either no one will go.

1 will go.

2 friends will go and so  on)

i.e. the domain is the set of all non-negative integers.

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Edgar ran eee meters per second, and Mathieu ran mmm meters per second. The boys ran for ttt seconds.
Oksana_A [137]

Answer:

The expression showing how many more meters Mathieu ran than Edgar ran during that time is  t(m-e).

Step-by-step explanation:

Edgar ran 'e' meters per second, and Mathieu ran 'm' meters per second. The boys ran for 't' seconds.

The expression t(m-e) describes how many more meters Mathieu ran than Edgar ran during that time.

We can also use the expression tm-te represent the same quantity.

We know that,

\text{Distance} =\text{Speed}\times \text{Time}

Distance covered by Edgar = te

Distance covered by Mathieu = tm

Difference in distance d= tm - te=t(m-e)

The expression showing how many more meters Mathieu ran than Edgar ran during that time is  t(m-e).

7 0
2 years ago
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One end of a 4ft iron rod is attached to the center of a pulley with radius of 0.5 ft. The other end is attached at a 40 degree
mr_godi [17]
We use the formula
L = rθ
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Substituting the values and converting the angle to radian measure
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3 0
2 years ago
A veterinarian's office recorded one particular week that they had 50 patients. The following table shows the recorded number of
Gre4nikov [31]

Answer:

1. <u>The correct answer is 46%</u>

2. <u>The correct answer is .07</u>

<u>3. The correct answer is (34%,58%)</u>

4. <u>The correct answer is (32%,60%)</u>

Step-by-step explanation:

1. Let's calculate the percentage or proportion of patients that were dogs:

p = (7 + 4 + 5 + 5 + 2)/50 = 23/50 = 0.46

<u>The correct answer is 46%</u>

2. Let's estimate the standard error, using the given formula, this way:

S.e = √ (0.46 * 0.54)/50 = √0.049 = 0.07

<u>The correct answer is .07</u>

<u>3. </u>Let's calculate the confidence limits of the 90% confidence interval, this way:

Confidence limits = proportion +/- 1.645 * standard error

Confidence limits = 0.46 +/- 1.645 * 0.07

Confidence limits = 0.46 +/- 0.12

Confidence limits = 0.34, 0.58

<u>The correct answer is (34%,58%)</u>

4. <u> </u>Let's calculate the confidence limits of the 95% confidence interval, this way:

Confidence limits = proportion +/- 1.96 * standard error

Confidence limits = 0.46 +/- 1.96 * 0.07

Confidence limits = 0.46 +/- 0.14

Confidence limits = 0.32, 0.60

<u>The correct answer is (32%,60%)</u>

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2 years ago
James knows that when h walks, he takes about 120 steps per minute and that each step is 2.75 feet long. Which calculation is mo
Luba_88 [7]

Answer:

120*2.75*60/5280

= 3.75

Step-by-step explanation:

So James is walking at 120 steps a minute, there are 60 minutes in one hour, and 5,280 feet in a mile. So, to find how quickly James is walking, we multiply how many steps he is taking a minute by how much distance each step is (120 * 2.75) that gives us how much distance in one minute, so we then multiply by 60 because there are 60 minutes in one hour. Then divide the entire equation by how many feet are in one mile (5,280) giving us the answer 3.75 miles per hour. And the equation 120*2.75*60/5280

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200 +  {4 \times 46}
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