Find r if AB = 18 and AD = 30.
?
Fill in the blank(s) with the appropriate word(s).
16
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The maximum length of a certain snake is 21 inches. The following table shows the length L, in inches, of the snake t years after birth. The difference 
between its maximum length and its current length is given in the third row of the table.
t 2 3 4 5 6 L 5.05 8.97 8.33 11.04 12.72
15.95 12.03 12.67 9.96 8.28?
A: Use exponential regression to model the difference D as a function of age. Round your answer to two decimal places.B: Use the model you found in part A to find a formula that gives the approximate length L at age t years. Round your answer to two decimal places.C: Plot the graph of L versus t along with the data points for length.D: What is the age of a snake that is 13.88 inches long? Round your answer to two decimal places.
What will be an ideal response?
Find the polar equation for the curve represented by the given Cartesian equation.
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Find the first term and the common ratio of the geometric sequence.an = 6
n
A. a1 = - 
, r = 
n
B. a1 = 4, r = 
C. a1 = 
, r = 6
D. a1 = - 4, r = 4
Write the English phrase as an algebraic expression. Let x represent the number.89 less than a number
A. 89x B. 89 - x C. 89 D. x + 89