Use a graphing calculator to sketch the graph of the quadratic equation, and then give the coordinates for the x-intercepts (if they exist).y = -3x2 + 9x + 30
A. (-2, 0); (5, 0)
B. (2, 0); (-5, 0)
C. (-2, 0); (-5, 0)
D. (2, 0); (5, 0)
Answer: A
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Evaluate the integral.
dt
A. 3 ln
+ 
+ C
B. 4 ln
- 
+ C
C. 3 ln
- 
+ C
D. 3 ln
- 
+ C
Use the guidelines to evaluate the study. Discuss flaws that you see in the study. A researcher from an environmental group wishes to gauge political sentiment regarding a proposed environmental law. He obtains a list of 1000 email addresses from an internet provider, uses a random number table to select a random sample of 100 of these addresses, emails the people in the sample asking them "How do you feel about the proposed environmental law which will improve the quality of our air?" He requests that people respond to his question by email. After the study he announces that 72% of Americans are in favor of the new environmental law.
What will be an ideal response?
Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Find the interest and maturity value for the loan. Round to the nearest cent.$49,733 at 7.2% for 23 months
A. $6863.15; $56,596.15 B. $6920.83; $56,653.83 C. $7161.55; $56,894.55 D. $6564.76; $56,297.76