Find the cross-product and determine whether the proportion is true or false.
= 
A. 
? 672; false
B. 288 ? 49; false
C. 84 = 84; true
D. 36 = 36; true
Answer: C
Mathematics
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Convert the improper fraction into a mixed number.
A. 
B. 1
C. 1
D. 2
Mathematics
Identify the type of surface represented by the given equation.
- 
= 
A. Paraboloid
B. Parabolic cylinder
C.
| Ellipsoid |
D. Hyperbolic paraboloid
Mathematics
Determine the domain of the function.f(x) = 
A. All real numbers B. No solution C. All real numbers except 2 D. x < 2
Mathematics
Use the graph of the rational function f to identify x-values where either f(x) is undefined or 
?
A. x = -3 or -2 B. x = -3 or 2 C. x = -3 D. x = 4
Mathematics