What can you do when the unit prices for two comparable items are listed using different units of measure? a. The secondary units don't affect the cost. As long as both prices are in dollars or cents, you
can compare the two.
b. The unit prices are based on the cost of the whole package, so divide each base cost by
each unit price to get comparable units.
Use conversion rates to change one unit into the other unit, so that both prices are listed using
like units.
d. Unit prices are ratios, so you can add the two prices together and divide by the smaller unit
price to get a usable number.
C
Please select the best answer from the choices provided
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B
С
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Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.

Change negative exponents to positive. then solve. round to four decimal places

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.