Solve.The electrical resistance of a given length of wire is inversely proportional to the square of the diameter of the wire: 
= 
.If a certain length of wire with a diameter of 41.759 mils has a resistance of 8.475 ohms, what is the resistance of the same length of the same composition wire with a diameter of 30.979 mils?
A. 11.285 ohms
B. 7.855 ohms
C. 15.399 ohms
D. 16.407 ohms
Answer: C
Mathematics
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Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
C. 
D. 
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.-5x2 + 19x + 4
A. Prime B. (-5x + 1)(x - 4) C. -(5x - 1)(x + 4) D. -(5x + 1)(x - 4)
Mathematics
Solve the problem.How many different three-digit numbers can be written using digits from the set {2, 3, 4, 5, 6} if digits may not be repeated?
A. 120 B. 20 C. 10 D. 60
Mathematics
Use the horizontal line test to determine if the function is one-to-one.
A. Yes B. No
Mathematics