Graph the equation using a graphing utility. Use a graphing utility to approximate the intercepts rounded to two decimal places, if necessary. Use the TABLE feature to help establish the viewing window.y = 3x2 - 19
A. (0, 19), (-2.52, 0), (2.52, 0)
B. (0, -19), (2.52, 0)
C. (0, -19), (-2.51, 0), (2.51, 0)
D. (0, -19), (-2.52, 0), (2.52, 0)
Answer: D
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On a certain island new species are being introduced at a rate of
species per year.
But conditions cause species extinction at a rate of
species per year.
Here t is the time in years. Equilibrium occurs when the rate of extinction is the same as the rate new species are being introduced.A: The time when equilibrium occurs is the solution of an equation. Which equation?B: Plot the graphs of both N and E on the same coordinate axes over the first 10 years of activity.C: When does equilibrium occur? Round your answer to two decimal places.D: What is extinction rate when equilibrium occurs? Round your answer to two decimal places.
What will be an ideal response?
Provide an appropriate response.Given ? > 0, find an interval I = (5 - ?, 5), ? > 0, such that if x lies in I, then 
< ?. What limit is being verified and what is its value?
A. 
= 0
B. 
= 0
C. 
= 0
D. 
= 5
Find the first term and the common ratio of the geometric sequence.an = -(1.06)n-1
A. a1 = 1.06, r = 0.06 B. a1 = -1, r = 1.06 C. a1 = -1, r = -1.06 D. a1 = 0, r = (1.06)n-1
Decide whether the relation is a function.{(-1, 1), (2, 8), (6, -8), (9, 2), (10, -7)}
A. Function B. Not a function