1 is the correct answer. d and n each have to be at least three, so the sign is correct. also, the sum of nickels and dimes is at most 2.50, so the sign is correct there, too.
Answer:
w(7) = 24
Step-by-step explanation:
To evaluate w(7) substitute a = 7 into w(a)
w(7) = 4(7) - 4 = 28 - 4 = 24
Answer:
<em>The loudness of the dinner conversation is 40 dB</em>
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Step-by-step explanation:
Loudness in dB = 10
where is the least intense sound a human can hear = W/m^2
For a dinner conversation with sound intensity of = W/m^2
Loudness = 10 = 10 = <em>40 dB</em>