Numerade

Questions asked

BEST MATCH

True or False? (5 points) - Refrigerator is a heat engine working in reverse. - The Entropy of a pure substance is zero at absolute zero temperature. - A condenser in an ideal refrigeration cycle consumes work. - The COP of vapor-compression refrigeration cycles improves when the refrigerant is subcooled before it enters the throttling valve. - When a system undergoes a Carnot cycle, no entropy is produced within the system.

View Answer

BEST MATCH

What distinguishes slavery from capitalism as an economic system is that Question 6 options: Wage labor is paid in money, not goods Slavery is much more brutal Slavery is predominantly an agricultural system The capitalist does not own the worker outright

View Answer

BEST MATCH

An Earth satellite in an elliptical orbit travels fastest when it is everywhere along its orbit. farthest from Earth. nearest Earth.

View Answer

BEST MATCH

Adding of function \[ \begin{array}{l} f(x)=3 x^{2}-2 x+1 \\ g(x)=4 x^{2}+5 x-4 \end{array} \]

View Answer

BEST MATCH

4. Find the value of unknowns in each of the following figure:

View Answer

BEST MATCH

A 25-ohm resistor at steady state draws a current of 10.2 amperes. Its temperature is 310 K; the temperature of the surroundings is 300 K. What is the total rate of entropy generation? The total rate of entropy generation is J·K−1·s−1. State whether the statement given below is true or false. This entropy generation occurs when the electrical potential energy, which can be converted completely to work, is converted to heat within the resistor.

View Answer

BEST MATCH

The total cost (TC) of producing computer software diskettes (Q) is given as TC=200+5Q. What is the variable cost? ? 200 5Q 05 5 + (200/Q) none of the above

View Answer

BEST MATCH

Activity 2 - Sampling & Estimation For the Excel file Credit Approval Decisions, find 95% prediction intervals for the credit scores and revolving balance of homeowners and non-homeowners. If a manufacturer conducted a survey among randomly selected target market households and wanted to be 95% confident that the difference between the sample estimate and the actual market share for its new product was no more than 3%, what sample size would be needed?

View Answer

BEST MATCH

Given the following three functions, f left parenthesis x right parenthesis space equals space 2 x space minus space x squared g left parenthesis a right parenthesis space equals space square root of 2 minus a end root k left parenthesis t right parenthesis space equals space fraction numerator t over denominator t plus 1 end fraction Match the statements on the left with the correct answer on the right. Question 1 options: g left parenthesis minus 2 right parenthesis space equals k left parenthesis 0 right parenthesis space equals

View Answer

BEST MATCH

Quantity of Fixed Cost Variable Cost Lanterns (dollars) (dollars) Total Cost (dollars) Average Total Cost (dollars) 75 200 170 370 4.93 80 200 230 430 5.36 90 200 7.67 100 200 810 115 200 11.8 117 200 1264 1464 12.5 120 200 1480 Table 11-7 shows cost data for Lotus Lanterns, a producer of whimsical night lights. Refer to Table 11-7. What is the variable cost of production when the firm produces 115 lanterns? A) $1,556 B) $1,157 C) $956 D) $10.05

View Answer

josep m.