Consider the data in the following table regarding the median age of women at their first marriage in the U.S. (U.S. Bureau of the Census.)
(a) Find the regression line y = mx + b.
(b) Use the regression line to predict the median age of women at their first marriage in 2020.
(a) 22.1167 + 0.155x
(b) 28.3 years old
Mathematics
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Determine if the sequence is monotonic and if it is bounded.
A. nonincreasing; unbounded B. not monotonic; unbounded C. nondecreasing; bounded D. nondecreasing; unbounded
Mathematics
Decide whether or not the given equation is an identity.
- 
= csc ?t - sin ?t
A. Yes B. No
Mathematics
Round to the place value indicated.44,736,386 to the nearest million
A. 45,000,000 B. 44,736,000 C. 44,800,000 D. 44,000,000
Mathematics
Find the LCM of 3a2, 4ab, and 6a2b3.
a. 12a3b4 b. 12a3b3 c. 12a2b3 d. 24a2b3 e. 24a3b3
Mathematics