Answer:
use inverse operations (answer choice b)
Step-by-step explanation:
the use of inverse operations allow for things to cancel out so that you can be left with the variable and a single value
Answer: 471
Step-by-step explanation:
Given : The population standard deviation is estimated to be $500.
i.e .
If a 97 percent confidence interval is used and an interval of $100 is desired.
i.e. Margin of error = half of interval
i.e. E=
Significance level : 1-0.97=0.03
Critical value for 97% confidence interval :
Formula for sample size :
Hence, at-least 471 cardholders should be sampled.
The specific heat of the gold is 1.67 (=125/(3*(43-18)) joule/ gram oC based on its heat energy, change in temperature and mass. This problem can be solved using the heat energy formula which stated as Q=c*m*(deltaT). In this formula, Q is the heat energy, c is the specific heat, m is the object's mass, and deltaT is the change in the temperature of the reaction<span>.</span>