Write the expression by using exponents.3 ? 3 ? 3 ? 3 ? 3 ? 3
A. 36
B. 35
C. 18
D. 63
Answer: A
Mathematics
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Solve the problem.Two sound waves, producing the pressures 
and 
combine on a person's ear drum to produce the pressure 
Find the amplitude and phase shift for the total pressure.
A. A = 2.2, ? = 849.079 B. A = 2.2, ? = 0.9273 C. A = 5, ? = 849.079 D. A = 5, ? = 0.6435
Mathematics
Solve and check your solutions.-x = -2
A. x = 0 B. x = 2 C. x = -1 D. x = -2
Mathematics
?PAT ? ?MNR. List the six pairs of congruent parts for the two triangles.
What will be an ideal response?
Mathematics
Simplify the expression.
A. 
B. 
C. a + 5
D. a - 5
Mathematics