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arsen [322]
3 years ago
8

Simplify the following expression. 2 + [(15 + 3) × 2]

Mathematics
2 answers:
Anni [7]3 years ago
6 0

Answer:

38

Step-by-step explanation:

2 + ( (15 + 3) * 2)

2 +  (18 * 2)

2 + (36)

= <u>38</u>

ki77a [65]3 years ago
6 0

Answer:

38

Step-by-step explanation:

2 + [(15 + 3) × 2]

= 2 + [ 18 × 2]

= 2 + 36

= 38

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The answer to this question is c
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In a grouped frequency distribution one interval is listed as 50-54. Assuming that the scores are measuring a continuous variabl
aliina [53]

Answer:

a. 49.5 and 54.5

Step-by-step explanation:

Class interval is a range of a value that is used to group data into equal size for easy analysis and representation of the data. It is applicable in the divisions of a histogram or bar chart into classes.  Examples of class interval are 50-54, 55-59, 60-64, 65-69, 70-74 etc.

Class limit is the minimum and maximum value the class interval may contain. The minimum value is called the lower class limit and the maximum value is called the upper class limit. For class interval 50-54, the lower class limit is 50 and the upper class limit is 54.

Class boundaries are the numbers used to separate classes. It is the real limits of a class. For non-overlapping classes, the lower class boundary of each class is calculated by subtracting 0.5 from the lower class limit. The upper class boundary of each class is calculated by adding 0.5 to the upper class limit. Example: For class interval 50-54, the lower class boundary is 49.5 and the upper class class boundary is 54.5

Considering the question given, to get the real limits of the interval 50-54, 0.5 is subtracted from the lower class limit to give 49.5. Also, 0.5 is added to the upper class limit to give 54.5.

4 0
4 years ago
An analyst for a new company used the first three years of revenue data to project future revenue for the company. The analyst p
Westkost [7]

Using limits, it is found that since \lim_{x \rightarrow \infty} f(x) < 0, the company is expected to operate at a loss, hence it is not expected to be successful.

The revenue function is given by:

f(x) = -2x^5 + 6x^4 - x^3 + 5x^2 + 6x + 50

<h3>Limit:</h3>
  • The projected revenue over the long-term is given by the limit of f(x) as x goes to infinity.

Then:

\lim_{x \rightarrow \infty} f(x) = \lim_{x \rightarrow \infty} -2x^5 + 6x^4 - x^3 + 5x^2 + 6x + 50 = \lim_{x \rightarrow \infty} -2x^5 = -2(\infty)^5 = -\infty

Since the limit is negative, the company is expected to operate at a loss, hence not being successful.

To learn more about limits, you can take a look at brainly.com/question/24821129

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15 apps.

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Divide 6 by 4, and you get how much apps that phone can do in a single minute. Then multiply that number by 10 and you get 15 apps in 10 minutes.

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