Find n(A) for the set A.A = {x?x is a month in the year}
A. n(A) = 52
B. n(A) = 1
C. n(A) = 12
D. n(A) = 24
Answer: C
You might also like to view...
Solve the problem.A heat engine is a device that converts thermal energy into other forms. The thermal efficiency, e, of a heat engine is defined by 
where Qh is the heat absorbed in one cycle and Qc, the heat released into a reservoir in one cycle, is a constant. Find 
.
A. 
= - 
B. 
= Qh - Qc
C. 
= 
D. 
= 
Graph the inequality.y ? x2 + 7
A. 
B. 
C. 
D. 
Assume triangle ABC has standard labeling. Determine if AAS, ASA, SSA, SAS, or SSS is given and decide if the law of sines or the law of cosines should be used to solve the triangle.a, b, and c
A. SSS; law of cosines B. SSA; law of cosines C. SSS; law of sines D. ASA; law of sines
Multiply and simplify. Assume that all variables represent positive real numbers.(5 - 
)(6 - 
)
A. 30 - 10x
B. 30 - 11
- x
C. 30 - 10
D. 30 - 11
+ x