Find the number of subsets.{0}
A. 0
B. 4
C. 2
D. 1
Answer: C
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 3-2? 34
A. 
B. 6
C. -729
D. 9
Mathematics
Translate into an equation, and then solve the equation.Two times what number is equal to eight?
A. 2x = 8; 4 B. 2x = 8; 5 C. 2 + x = 8; 4 D. 2x = 8; 3
Mathematics
Solve.x5 + x2 ? 7x3 + 7
A. [-
, -1] ? [
, ?)
B. [-
, 
]
C. (-?, -
] ? [-1, 
]
D. [-7, ?)
Mathematics
Solve the given application problem.The temperature at the South pole was 28° at 8 am. At 3 pm, it was -33°. By how many degrees did the temperature drop?
A. -61° B. 61° C. 5° D. -5°
Mathematics