Solve.The temperature at 2 p.m. on January 16 was -12°F. By 11 p.m. the temperature had risen 20 degrees. Find the temperature at 11 p.m.
A. -32°F
B. 8°F
C. 32°F
D. -8°F
Answer: B
Mathematics
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List all of the Hamilton circuits for the graph that start with the indicated vertices.
Starting D ? A ? B
A. D ? A ? B ? C ? E D ? A ? B ? E ? C B. D ? A ? B ? C ? E ? D D ? A ? B ? E ? C ? D C. D ? A ? B ? E ? C D. D ? A ? B ? C ? E ? D D ? A ? B ? E ? C ? D D ? A ? B ? D ? C ? E D ? A ? B ? D ? E ? C
Mathematics
Solve the system of equations.x - y + z = 8x + y + z = 6x + y - z = -12
A. {(2, -1, -9)} B. {(-2, -1, -9)} C. {(2, -1, 9)} D. {(-2, -1, 9)}
Mathematics
Find the value of x.
?
?
?
A. ?
B. 
C. ?
D. ?
E. ?
Mathematics
Write the fraction in simplest form using the method of your choice.
A. 15 B. 4k C. 4k2 D. 15k2
Mathematics