Solve the problem.The formula A = -10(log 10 Pi - log 10 Po) gives the power gain (in dB) if Pi is the input and Po is the output. Write the expression on the right side as the logarithm of a single quantity.

A. log 10 (Pi/Po)10
B. log 10 (Pi- Po)-10
C. log 10 (PiPo)-10
D. log 10 (Pi/Po)-10


Answer: D

Mathematics

You might also like to view...

Find the value of the variable that satisfies the equation.-7x + 5 + 5x = -3x + 10

A. x = 10 B. x = -10 C. x = -5 D. x = 5

Mathematics

Multiply, and then simplify if possible. Assume all variables represent positive real numbers.( + 6)2

A. x + 12 + 36
B. x + 12 + 49
C. x + 12 + 35
D. x + 12 + 37

Mathematics

Solve the problem.A(x) = -0.015x3 + 1.05x gives the alcohol level in an average person's bloodstream x hours after drinking 8 oz of 100-proof whiskey. If the level exceeds 1.5 units, a person is legally drunk. Would a person be drunk after 4 hours?

A. Yes B. No

Mathematics

Solve.Write a polynomial in factored form that represents the total area of the figure.

A. (x + 2)(x + 6) B. x2 + 12 C. (x - 2)(x - 6) D. x2 + 8x + 12

Mathematics