Find the equation of the normal line to the indicated curve at the given point.x2 - y2 = 40 at (-7, 3)
A. 3x - 7y - 42 = 0
B. 3x + 7y - 42 = 0
C. 3x - 7y + 42 = 0
D. 3x + 7y + 42 = 0
Answer: C
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Solve the problem.The temperature T (in °C) recorded in a city during a given day approximately followed the curve of 
where t is the number of hours from noon 
What was the average temperature from noon to 
A. 45.2°C B. 16.6°C C. 21.8°C D. 22.6°C
Name the property used to go from step to step indicated by an a), b), c), or d).
What will be an ideal response?
Simplify using scientific notation. Leave your answer in scientific notation.2,000,000,0002
A. 1.6 × 1013 B. 1.6 × 1018 C. 4 × 1013 D. 4 × 1018
A company, with 1080 total employees, prepares the following analysis for the length of time its employees have been with the company. Use the table to answer the question. 
What is the ratio of employees working 2 years or less to the total number of employees?
A. 
B. 
C. 
D. 