Calculate the number of subsets and the number of proper subsets for the set.the set of natural numbers less than 10
A. 511; 510
B. 511; 512
C. 510; 511
D. 512; 511
Answer: D
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Solve the problem.In a survey of 1000 Americans, 850 said that they own a cell phone. Assume that the survey was properly conducted and that the 1000 people surveyed represent an unbiased sample of the entire population. Compute a 99.7% confidence interval (expressed using percents) for this survey.
A. 84.08% to 85.02% B. 84.8% to 85.2% C. 83.9% to 86.1% D. 82.8% to 87.2% E. 81.7% to 88.3%
Write a numerical expression for the phrase and simplify it.The product of 
and - 
, divided by 
.
A. 
; - 
B. 
; - 
C. 
; - 
D. 
; - 
Provide an appropriate response.The demand function for a product is p = 180
where q is the number of units and p is the price of one unit. At what price will the demand be 15 units? How many units will be demanded if the price is $24.91?
Fill in the blank(s) with the appropriate word(s).
Find the difference.12 - (-1)
A. 11 B. -13 C. 13 D. -11