Answer:
Step-by-step explanation:
Volume of cylinder = π times r^2 times h (height)
8,685.9 = π times r^2 times h
To find the radius, divide the diameter by 2.
19.2 / 2 = 9.6
8,685.9 = 3.14 x 9.6^2
3.14 x 9.6^2 = 289.38 (estimated)
8,685.9 = 289.38
Divide 289.38 by 8,685.9.
289.38 / 8,685.9 = 0.033316064
I hope this is right?!!
Using a Laplace expansion along the first column, we have
The determinant of a 2x2 matrix is trivial,
So we have
The change would start off as a negative and end as a positive she would end up with $425
Answer:
c This is the direct variation
Step-by-step explanation:
The equation for direct variation is y= kx
Solving this for k
y/x =k
So y/x must be a constant
a. 9/3 =3
2/7 does not =3 so this is not a direct variation
b 1/2 = .5
-3/6 = -.5
This is not the same so this is not a direct variation
c. 27/9 =3
18/6 =3
9/3 =3
This is a direct variation with a constant of 3
d 5/-7 = -5/7
1/-3 = -1/3
This is not the same so this is not a direct variation
Answer:
x = -3
Step-by-step explanation:
First, we want to sub in the numbers then isolate the variable. We subtract 4 from both sides. That gives us 13 - 4 = -3x which equals 9 = -3x. Now we divide both sides by -3. So x equals -3. I hope this helps! Please make me the brainliest! Thanks!
