Answer:
351.68 cm^2
Step-by-step explanation:
We need to find the area of the frame itself. the radius of the inner circle is 12, but the frame has a radius of 4. You add 12 and 4 and you get 16. The formula for area of a circle is A=πr^2. So A= 3.14 x16^2. Then you have A= 3.14x 256 and you get 803.84. But we only want the area of the frame, so you have to get the area of the inner circle and subtract. You get A= 3.14 x 12^2. 3.14x144 is 452.16. 803.84-452.16 is 351.68. Hope this helped. :)
Chose a fraction with a denometer of 8.
Ex: 3/8
To compare 5/6 and 3/8 we need to find the LCM (the lowest common denominator.)
This can easily be done by listing the multiples of each number.
6: 6, 12, 18, 24, 30, 36
8: 8, 16, 24, 32, 40, 48
The Lowest common denominator would be 24.
6*4=40
8*3=40
Since we altered the denometer, either by multyplying by 6 or 8 (to get 24), we must do the same for the numerator.
3/8*3
9/24
5/6*4
20/24
Now we compare the fraction properly.
20 is larger than 9 so we know that 3/8 is less than 5/6.
Hope this helps! Please leave a thanks/braniest answer!
So the question if find y'' for 4y=cos2x
First, find y by dividing by 4. y = cos2x/4
Then, take the first derivative. y' = -sin2x/2
Then, take the second dervative. y'' = -cos2x
Answer:
<h2>(a) 5,050 psi.</h2><h2>(b) 5,051.3 psi.</h2><h2>(c) 5,180 psi.</h2><h2>(d) 4,920 psi.</h2>
Step-by-step explanation:
The given function is
Where 
represents the accelerated strength in psi, and 
represents 28-day standard-cured strength in psi.
Part a is about finding the y-value for 
Therefore, the expected value of 28-day strength when accelerated strength is 2,500, is 5,050 psi.
Part b is about the y-value for 
Part c is about the y-value for 
Part d is about the y-value for 
Step-by-step explanation:
I'm not sure about it
Try it find examples
