Find the domain of the expression.
A) all real numbers
B) all real numbers except x = –7 and x = –2
C) all real numbers except x = 0
D) x = –7 or x = –2
E) x > 0
A) all real numbers
Mathematics
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Plot the point whose polar coordinates are given.(-2, -5?/4)
A. 
B. 
C. 
D. 
Mathematics
Collect like terms.
x + 
y - 
x - 
y + 20
A. 2x + 
y + 20
B. 
x + 
y + 20
C. 2x + 
y + 20
D. 2x + 
y + 20
Mathematics
Factor the polynomial completely.9x4 + 12x2 + 4
A. (9x2 + 2)(x2 + 2) B. (3x2 + 1)(3x2 + 4) C. (3x2 - 2)(3x2 - 2) D. (3x2 + 2)(3x2 + 2)
Mathematics
Make the conversion indicated. Round your result to the nearest tenth.29°C ? 
°F
A. 3.8 B. 84.2 C. 109.8 D. 48.1
Mathematics