Provide an appropriate response.Sketch the graph of a quadratic function for which the y-intercept is negative and the value of the discriminant is 0.
A. 
B. 
C. 
D. 
Answer: C
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Write an equation that models the described quantity. Specify what each variable represents.A gambler has lost $2000 and is losing money at a rate of $600 per hour.
A. l = 600t + 2000, where l represents total lost in dollars and t represents time in hours B. l = 600t - 2000, where l represents total lost in dollars and t represents time in hours C. l = -600t - 2000, where l represents total lost in dollars and t represents time in hours D. l = -600t + 2000, where l represents total lost in dollars and t represents time in hours
Solve the problem.The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose the the intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 12 miles? Round your answer to the nearest unit.
A. 248 units B. 222 units C. 205 units D. 186 units
Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.a1 = -8, an = an - 1 + 2
A. no B. yes, -8 C. yes, 1 D. yes, 2
Complete.4.31 km2 = 
m2
A. 4,310 B. 43,100 C. 4,310,000 D. 431,000