Solve the problem.When exposed to ethylene gas, green bananas will ripen at an accelerated rate. The number of days for ripening becomes shorter for longer exposure times. Assume that the table below gives average ripening times of bananas for several different ethylene exposure times. 
Plot the data and then find a line approximating the data. With the aid of this line, determine the rate of change of ripening time with respect to exposure time. Round your answer to two significant digits. 
A. 
-0.15 day per minute
B. 
-6.7 days per minute
C. 
38 minutes
D. 
5.6 days
Answer: A
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The weight of a baby blue whale over the first 7 months of its life can be calculated using
,
where W is the weight, in tons, andT is the age, in months.A: Find a formula that expresses T as a function ofW.B: The length L, in feet, is given by
.
Use your answer from part A to find a formula that gives the length as a function of the weight.C: How long is a baby blue whale if its weight is 16.4 tons?
What will be an ideal response?
Shade the region in the xy-plane that satisfies the system of inequalities.
+ 
? 1
+ 
? 1
A. 
B. 
C. 
D. 
Convert the units using two or three unit fractions.6 wk = 
min
A. 60,480 B. 10,080 C. 43,200 D. 30,240
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = 1 - (x + 1)2 
A. vertex: (1, - 1)
axis of symmetry: x = 1
B. vertex: (- 1, 1)
axis of symmetry: x = - 1
C. vertex: (1, 1)
axis of symmetry: x = 1
D. vertex: (- 1, - 1)
axis of symmetry: x = - 1