Answer:
BdB = 68.10 decibels
Step-by-step explanation:
BdB = 10 log10 I / Io
where BdB is the sound intensity level in decibels, I is the sound intensity on the linear scale (W / m²) and I0 is the hearing threshold (10^-12 W / m²).
Converting Io de 10^-12 W/m² to W/in², tenemos
10^-12 W/m² = 1.5500031000062x10^-9 W/in²
So, applying the equation or formula,
BdB = 10 log10 (10 ^ -2 W/in² / 1.5500031000062x10^-9 W/in²
)
BdB = 10 log10 (0.64516x10^6)
BdB = 10 log10 (6,451,600)
Being log10 (6,451,600) = 6.8096674332398761189214526331036, then
BdB = 10 x 6.8096674332398761189214526331036
BdB = 68.096674332398761189214526331036
BdB = 68.10 decibels
3(1+2)
3+6
9 ( the answer is nine)
first you divide six and two then use the distributive property to multiply three and one and three and two, then add three and six to get nine.
Answer:
There are many.
Step-by-step explanation:
When you say proportional, you are looking for a ratio that is equivalent to the ratio given. In your case, there are many so you might need to be more specific. But still, we can help you figure it out.
An easy way to do this would be to scale it down to its simplest form and then move upwards. To find proportional ratios, just multiply denominator and the denominator with the same factor.
That is your ratio in its simplest form. Now we can scale up, I'll show you how to do one completely:
That's the same ratio scaled up by a factor of 2.
---------------------------------------------------------------------------------------
That's the ratio given
---------------------------------------------------------------------------------------
Scaled up by a factor of 4
---------------------------------------------------------------------------------------
Scaled up by a factor of 5.
The list goes on and on.
Answer:
y=2/3x+14
Step-by-step explanation:
The standard form of an equation in slope-intercept form is y=mx+b where m=slope and b=y-intercept.
Given a y-intercept of 14 and a slope of 2/3, we can plug into the variables and get the equation y=2/3x+14
The x-intercept would be when y=0, so plugging in y=0 to the equation gets us:
0=2/3x+14
-14=2/3x
21=x
So the x-intercept is 21
Answer:
here u go
Step-by-step explanation:
it would be 0.075,3/4, 75%
