Find the value of k so that the equation will have exactly one rational solution.49x2 + kx + 64 = 0

A. 56 or -56
B. 112
C. 112 or -112
D. -112


Answer: C

Mathematics

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Solve the problem. Round your answer to 2 decimal places when necessary.A U.S. city with a population of 1.8 million reports 37,853 births in one year. How many people are born per day in the city?

A. 4932 births per day B. 95 births per day C. 104 births per day D. 728 births per day

Mathematics

Determine an equation that models the data best.

A. y = x - 
B. y = - x - 
C. y = - x - 
D. y = x - 

Mathematics

Provide an appropriate response.Determine the area of each indicated square starting with the smallest to the largest. Determine the area of the circle using its formula. Between which to squares do you find the closest values to the area of the circle? Discuss this method as a way to accurately determine the area of a circle. 

What will be an ideal response?

Mathematics

Solve the problem.A small computing center has found that the number of jobs submitted per day to its computers has a mean of 66 jobs and a standard deviation of 5. Where do we expect the number of jobs per day to fall most of the time (95.4%)?

A. between 61 and 71 jobs per day B. between 51 and 81 jobs per day C. between 56 and 81 jobs per day D. between 56 and 76 jobs per day

Mathematics