The Average Typing Speed N (In Words Per Minute) After $N = \frac { 91 } { 1 + 7.5 e ^ { - 0.15 t } }$

question 53

Multiple Choice

The average typing speed N (in words per minute) after t weeks of lessons is modeled by $N = \frac { 91 } { 1 + 7.5 e ^ { - 0.15 t } }$ . Find the rate at which the typing speed is changing when t = 20 weeks. Round your answer to two decimal places.

• A)2.40 words/min/week
• B)2.70 words/min/week
• C)3.71 words/min/week
• D)4.93 words/min/week
• E)6.24 words/min/week

Understand the relationship between real GDP, aggregate expenditure, and planned investment.

Calculate and interpret the simple spending multiplier effect.

Analyze the effect of changes in income levels on imports and exports.

Comprehend the concepts of unintended inventory adjustments and their implications for GDP.

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Definitions:

Retained Earnings

The portion of net income that is kept by a company rather than distributed to its shareholders as dividends, often used for reinvestment.

Retained Earnings

The portion of net income that is retained by a company rather than distributed to its shareholders as dividends.

Net Operating Income

The profit generated from a company's normal business operations, excluding non-operating income and expenses.

Materials Quantity Variance

Materials quantity variance is the difference between the actual quantity of materials used in production and the expected quantity, based on standard usage rates.