People with skills and training in areas such as marketing or accounting are an important part of the manufacturing industry.
True
False
Answer:
true
Explanation:
Is (3x+1)(4x-5) the factor form of 12x^2-11x-5?
Answer:
Yes good job
Explanation:
Answer:
Yes
Explanation:
Yes, the factored form of 12x^2-11x-5 is (3x+1)(4x-5)
A transmission channel between two communicating DTEs is made up of three sections. The first introduces an attenuation of 16 dB, the second introduces an amplification of 20 dB, and the third introduces an attenuation of 10 dB. Assuming a mean transmitted power level of 400 mW, determine the mean output power level of the channel. (3 points)
Answer:
the mean output power level of the channel is 100.475 mW
Explanation:
Given the data in the question;
for the first section; attenuation
16 = 10log₁₀ 400/P₂
P₂ = 10.0475 mW
For the second section; amplification
20 = 10log₁₀ p₂/10.0475
p₂ = 1004.75 mW
For the third section; attenuation
10 = 10log₁₀ p₂/1004.75
p₂ = 100.475 mW
i.e the mean output power level is 100.475 mW
or better still overall attenuation channel = ( 16 - 20) + 10 = 6dB
so
6 = 10log₁₀ 400/P₂
p₂ = 100.475 mV
the mean output power level of the channel is 100.475 mW