Solve the problem.The ages and lengths of several animals of the same species are recorded in the following table: 
Find and then use a linear model to determine the age of an animal whose length is 30 inches. Round to the nearest year.
A. 31 yr
B. 32 yr
C. 29 yr
D. 30 yr
Answer: D
You might also like to view...
Determine the standard equation of the ellipse described.Foci at (0, 4) and (-4, 4); vertex at (-5, 4).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.You inherit $28,000 from a very wealthy grandparent, with the stipulation that for the first year, the money must be invested in two stocks paying 4% and 10% annual interest, respectively. How much should be invested at each rate if the total interest earned for the year is to be $1600?
A. $8000 invested at 4%; $20,000 invested at 10% B. $10,000 invested at 4%; $18,000 invested at 10% C. $20,000 invested at 4%; $8000 invested at 10% D. $18,000 invested at 4%; $10,000 invested at 10%
Tell whether the given rational expression is proper or improper. If improper, rewrite it as the sum of a polynomial and a proper rational expression.
A. proper
B. improper; 
+ 
C. improper; 
D. improper; 
- 
Simplify. Assume that all factors in radicands represent real numbers that are greater than or equal to 0.
A. 
B. 
C. 
D. none of these