Solve the system. 3x + 6y = 24 4x + 9y = 38
A. ?
B. {(-4, -6)}
C. {(6, -4)}
D. {(-4, 6)}
Answer: D
Mathematics
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Provide an appropriate response. Use only the numbers 2, 5, 8, and 9. Fill in the blanks to yield the smallest whole number: ___ - ___ + ___ × ___ = ?
A. 8 ? 5 + 2 × 9 = ? B. 9 ? 8 + 2 × 5 = ? C. 5 ? 2 + 9 × 8 = ? D. 9 ? 5 + 2 × 8 = ?
Mathematics
Simplify the expression.
?
?
A. 
B. 
C. ?
D. ?
Mathematics
Provide an appropriate response.Use graphing to determine the domain and range of y = 
for f(x) = -(x - 3)2 - 2.
A. D: [0, ?); R: (-?, 2] B. D: (-?, ?); R: [2, ?) C. D: (-?, ?); R: [-2, ?) D. D: [0, ?); R: (-?, -2]
Mathematics
Evaluate the numerical value of the formula with the given replacement values.c = 
b = 20, a = 12
A. 4 B. 8 C. 16 D. 64
Mathematics