Decide whether vertex A of the network is even or odd.
A. Odd
B. Even
Answer: B
Mathematics
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Perform the indicated operation and write the answer in simplest form.
? 
A. 
B. 
C. 
D. 
Mathematics
Decide whether the equation describes a function.y = -7
A. yes B. no
Mathematics
Solve the problem.The decibel level D of a sound is related to its intensity I by 
. If I0 is 10-12, then what is the intensity of a noise measured at 93 decibels? Express your answer in scientific notation, rounding to three significant digits, if necessary.
A. 1.09 × 1016 watt/m2 B. 2 × 10-3 watt/m2 C. 2 × 10-2 watt/m2 D. 9.3 × 10-10 watt/m2
Mathematics
Perform the indicated operations and simplify. Assume that all variables represent positive real numbers.
+ 
- 
A. 0
B. 3
+3
+ 3
C. 2
+ 5
- 7
D. 3
+3
- 3
Mathematics