Answer:
p = - 4
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to - 4
m = 
with (x₁, y₁ ) = (- 3, p ) and (x₂, y₂ ) = (- 4, 0 )
m =
=
=
= p = - 4
Given: Sound Intensity ( I ) = 
We know, the approximate threshold of human hearing is at 1kHz. In watts/m^2 it's value is
⁻¹² W/m².
So, we can say, Reference sound intensity
= 10⁻¹² W/m².
We have formula for "sound intensity level LI in dB" when entering sound intensity.
LI = 10×log (I / Io) in dB
Plugging values of I and Io in formula.
LI = 10 × log (
)
LI = 10 × log (99000000)
= 10 × 7.99564
LI = 79.96 dB.
Therefore, 79.96 dB is the sound level for a noise that has an intensity of 9.9 × 10-5 watts/m2.
Answer:
255.7 cm²
Step-by-step explanation:
A = 10²(3.14) = 314
(293/360)(314) = 255.7 cm²
Answer:
she would need 60 more inches
Step-by-step explanation:
4feet =1 yard
2yard =t
8feet- 3 feet = 5 feet
1 foot = 12 inches
so 5 times 12 = 60
Answer:
1 1/2 pinyt
Step-by-step explanation: