You are told that sprinklers run for the same amount of time. lets refer to this time as T.
you are told that 4 sprinkles run one at a time for 50 minutes total. that means that T should be 50/4 = 12.5 minutes = 12 minutes and 30 seconds
Y=-1/2x-3
You can rewrite the equation “y=mx+b” and fill in what you know. So your equation would look like y=-1/2x+b when filling in what you know. Now you can take the (x,y) coordinates that you were given and plug them into the equation and solve for b. So now it would be -5=-1/2(4)+b
Yes it is enough to enclose the yard
Sound intensity corresponding to 80 dB:
Step-by-step explanation:
The decibel of a normal conversation is 60 dB, which corresponds to an intensity of . (1)
The formula to use that relates the intensity of the sound in to the sound level in decibel is
Where
is the sound level in decibel
is the intensity
We can found by plugging in the numbers of (1):
Which corresponds to a sound level of 0 decibel.
Now we can find the intensity that corresponds to a sound level of
And from the equation we find:
Learn more about sound waves:
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