Determine the value of each variable.
= 
A. m = 6; n = -10; x = 1
B. m = -10; n = 6; x = 0
C. m = 2; n = -6; x = 1
D. m = -6; n = +10; x = -1
Answer: A
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When is the body moving forward?
A. 0 < t < 1, 3 < t < 4, 5 < t < 7, 9 < t < 10 B. 0 < t < 1, 3 < t < 4, 5 < t < 7 C. 0 < t < 8 D. 0 < t < 3, 3 < t < 5, 5 < t < 8
Solve the problem.A boat goes 160 miles downstream in the same time it can go 120 miles upstream. The speed of the current is 8 miles per hour. Find the speed of the boat in still water.
A. 28 mph B. 56 mph C. 48 mph D. 64 mph
The table gives the percent of the population of a certain city that was foreign born in the given year. Find a cubic function that best fits the data where x is the number of years after 1900 and y is equal to the percent. By trial and error, estimate the year the model predicts that the foreign-born population will be 100%. Round numerical values in your answer to three decimal places. ? Year Percent Foreign Born 1900 10.94 1910 16.64 1920 8.05 1930 7.30 1940 9.24 1950 15.77 ?
A. 
foreign born population will be 100% in 1965.
B.
foreign born population will be 100% in 1975.
C.
foreign born population will be 100% in 1975.
D.
foreign born population will be 100% in 1965.
E.
foreign born population will be 100% in 1985.
Rewrite the expression with the given denominator.
= 
A. 
B. 
C. 
D. 