Find the function value. If the result is irrational, round your answer to the nearest thousandth.Let f(x) = 2x. Find f(3)
A. 6
B. 9
C. 16
D. 8
Answer: D
Mathematics
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Find the center and the radius of the circle.x2 + y2 = 100
A. (0, 0), r = 10 B. (0, 10), r = 100 C. (10, 10), r = 100 D. (0, 0), r = 100
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Graph the equation.y = x2 - 5
A. 
B. 
C. 
D. 
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Tell whether the angle is acute, right, obtuse, or straight.?ADB 
A. Acute B. Right C. Straight D. Obtuse
Mathematics
An airline flies 120,000 passengers per week to Florida when charging $100 per flight. It estimates that for each $1 increase in price it will lose 400 passengers. By how much should the fare be increased (or decreased) to maximize total revenue? Enter your answer as just an integer (no symbols or words).
Fill in the blank(s) with the appropriate word(s).
Mathematics