Answer:
Step-by-step explanation:
$9 for 3 attendees is $3 a person or 9:3 ratio
$18 for 6 attendees still $3 a person and goes by the 9:3 ratio, it's 18:6
12.56 because 12.56=2πr, so solve for r and you get 2=r. So you plug in 2 for r in the area formula which is A=πr^2, which will give you A=π(2^2), which is A=π(4), which will give you A=12.56
Answer:
<h2>The intensity of the sound is 3.16, approximately</h2>
Step-by-step explanation:
The equation that determines decibel levels is
Where represents the intensity of the sound and the ten power represents the softest sound, that ratio is the comparison to find the decibels.
In this case, we have 125 decibels. So, we need to use this value in the formula to find the intensity
Therefore, the intensity of the sound is 3.16, approximately. Which is at the same level as a loud rock concert.
She earned $1800 in commission
What you have to do is subtract $225 from $2025.
2025 - 225 = 1800
To check your work add 225 to 1800.
1800 + 225 = 2025
Hope this helps! (and sorry if it’s wrong)
Answer:
det(A) = (-6)(-2) - (-4)(-7)
Step-by-step explanation:
The determinat of the following matrix:
Is given by: Determinant a*d - b*c
In this case, a=-6, b=-7, c=-4 and d=-2.
Therefore the determinant is: (-6)(-2) - (-7)(-4).
Therefore, the correct option is the third one:
det(A) = (-6)(-2) - (-4)(-7)