It is given that the bottle temperature begins at the freezer temperature of –16° C. Thus, the initial temperature is –16° C.
Now, sitting on the kitchen counter, the bottle temperature will go up a steady 9.6° C every hour. We need to know how many hours will it take to reach 20° C.
Let us assume that it will take "" hours to reach the required temperature. Then the equation that will guide this system will be a linear one as shown below:
Adding 16 to both sides we get:
Dividing both sides by 9.6 we get:
hours
Thus it will take 3.75 hours (or 3 hours 45 minutes) for the bottle of maple syrup to reach a temperature of celsius.
Answer: 0.9192433
Step-by-step explanation:
Given : A nationwide study of American homeowners revealed that 65% have one or more lawn mowers.
i.e. Population proportion :
A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in Omaha.
Then, his hypothesis will be :-
Since, the alternative hypothesis is left tailed , so the test is a left-tailed test.
Sample size : n= 497
The sample proportion of people ad one or more lawn mowers=
Test statistic for proportion :-
i.e.
Now, by using the standard normal table for z , we have
P-value (left tailed) =
Answer:
8. 2/7 9. 3/4 10. 3/5
Step-by-step explanation:
simplify 4/14 by 2, simplify 15/20 by 5, and simplify 21/35 by 7, hope this helps