Solve the system.x2 + xy + y2 = 28x + y = 2
A. 
B. 
C. 
D. 
Answer: B
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Write the ratio as a fraction in simplest form.6 to 9
A. 
B. 
C. 
D. 
Solve the application.The circle graph shows the fraction of books read by students in grades one through five. What fraction of books was read by students in first and fourth grades combined?
A. 
of books
B. 
of books
C. 
of books
D. 
of books
Evaluate -x for the given value of x.x = - 
A. 0
B. 
C. 102
D. - 
Solve the problem.A thermometer reading 8°C is brought into a room with a constant temperature of 25°C. If the thermometer reads 16°C after 5 minutes, what will it read after being in the room for 10 minutes? Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to two decimal places.)
A. 29.76°C B. -1.24°C C. 24.97°C D. 20.24°C