The diagonals of a parallelogram are 24 meters and 40 meters and intersect at an angle of 60°. Find the length of the longer side.
?
A. 29 meters
B. 28 meters
C. 31 meters
D. 26 meters
E. 24 meters
Answer: B
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Solve the problem.A cabin cruiser travels 20 miles in the same time that a power boat travels 40 miles. The cruiser travels 5 mph slower than the power boat. Find the speed of each boat.
A. Power boat travels 15 mph and cruiser travels 10 mph. B. Power boat travels 20 mph and cruiser travels 15 mph. C. Power boat travels 10 mph and cruiser travels 5 mph. D. Cannot be determined with information given.
Find the equation in standard form of the parabola described.The focus has coordinates (-21, 0), and the equation of the directrix is x = 21.
A. y2 = 84x B. y2 = -84x C. x2 = -84y D. y2 = -21x
Solve the problem.In a certain town the annual consumption, b, of beef (in pounds per person) can be estimated by 
where t is the number of years since 2010. Find and interpret the b-intercept of the graph of this function.
A. 72; The annual consumption of beef in this town was 72 pounds per person in 2010. B. 72; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2082. C. 36; The annual consumption of beef in this town was 36 pounds per person in 2010. D. 36; If this trend continues, the annual consumption of beef in this town will be zero pounds per person in the year 2046.
Solve the linear system using an inverse matrix.
A. (1, -2) B. (2, -1) C. (-1, 2) D. (-2, 1)