Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.6x - 5y = 130x - 25y = 4
A. 
B. (1, 4)
C. no solution
D. (5, 4)
Answer: C
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Find the probability. Round to the nearest ten-thousandth when necessary.A fair coin is tossed 5 times. What is the probability of exactly 3 head(s)?
A. 0.3125 B. 0.125 C. 0.0313 D. 0.0625
Find the sum-of-the-years'-digits depreciation fraction for the first year.8 years
A. 
B. 
C. 
D. 
Use a graphing calculator to plot the data and find the quadratic function of best fit.The following table shows the median number of hours of leisure time that Americans had each week in various years.
Use x = 0 to represent the year 1973. Using a graphing utility, determine the quadratic regression equation for the data given. What year corresponds to the time when Americans had the least time to spend on leisure?
What will be an ideal response?
Divide.
A. -16
B. - 
C. -26
D. 16