Use an inequality symbol to write the given statement symbolically.2 is less than or equal to -2x.
A. 2 < -2x
B. 2 ? -2x
C. 2 = -2x
D. 2 > -2x
Answer: B
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At age 25 you start to work and are offered two retirement options.
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Retirement option 1: When you retire, you receive a lump sum of $25,000 for each year of service.
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Retirement option 2: When you start to work, the company will deposit $10,000 into an account that pays a yearly compound interest rate of 13%.
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A: Write a formula that gives your retirement payment 
, in dollars, if you retire after t years of service under retirement option 1.
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B: Write a formula that gives your retirement payment 
, in dollars, if you retire after t years of service under retirement option 2.
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C: Make a graph that shows the retirement payment for each option over the 40 years of service.
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D: How many years of service will result in the same payment from either option? (You will work more than 1 year.) Round your answer to two decimal places if necessary.
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What will be an ideal response?
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 = -x2 + 14x - 45
A. (-5, 0); (9, 0) B. (5, 0); (9, 0) C. (5, 0); (-9, 0) D. (-5, 0); (-9, 0)
Determine where the graph of the function f(x) = 
? 6x is concave upward and where it is concave downward. Also, find all inflection points of the function.
What will be an ideal response?
A square wheat field is watered by a center pivot irrigation system with a radius of 20 feet. To the nearest square foot, find the area of the field that will not be irrigated.
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