Solve the problem.A cell has at least 3 and at most 47 nucleii. How many cells must a scientist view under his microscope to be certain that at least two cells have the same number of nucleii?
A. 46 cells
B. 45 cells
C. 44 cells
D. 47 cells
Answer: A
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For the pair of functions, find the indicated domain.f(x) = x2 - 16, g(x) = 2x + 3Find the domain of f ? g.
A. [0, ?) B. (-4, 4) C. [4, ?) D. (-?, ?)
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 A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
Determine which one of the ordered triples below is a solution of the given system of equations.
a. ( 7, -9, -3 )
b. ( 1,5,2 )
c. ( 5, -2. -1 )
d. ( 7, -9, 2 )
e. ( 2, 5, 1 )