Answer:
Yolanda should have found the volume by multiplying 8 by four-thirds
Step-by-step explanation:
Here, we want to find Yolanda’s error.
we proceed as follows;
Mathematically, the volume of the cylinder can be calculated using the formula;
V = pi * r^2 * h
now since the radius of the cylinder and the height is equal, we can say that h = r
and thus, the volume can be written as
V = pi * r^2 * r = pi * r^3
Mathematically, the volume of a sphere can be calculated using the formula
V = 4/3 * pi * r^3
Now from the question we know that the value of pi * r^3 =8 which is the value for the volume of the cylinder.
Thus the volume of the sphere would be 4/3 * 8
so the correct answer here is B
Step-by-step explanation:
Use soh cah toa to solve
it is cos(α)=.839
so the angle of α is 32.9653
Hope that helps :)
9514 1404 393
Answer:
y = 5 -x
6x +3(5 -x) = 27
Step-by-step explanation:
The first equation is conveniently solved for either x or y. If we solve it for y, we get ...
y = 5 - x . . . . . . subtract x from both sides
This expression for y can be substituted into the second equation to give ...
6x +3(5 -x) = 27
These are your new system of equations.
Simplified, they are ...
_____
The second is a 2-step equation that gives the value of x, which can then be used in the first equation to find y.
3x = 12 . . . . subtract 15
x = 4 . . . . . . divide by 3
y = 5 -4 = 1 . . . . substitute into the first equation
The solution is (x, y) = (4, 1).
O.72 nice name by the way
Answer:y=2x+4
explanation:
−10x+5y=20
Step 1: Add 10x to both sides.
−10x+5y+10x=20+10x
5y=10x+20
Step 2: Divide both sides by 5.
5y=10x+20
5. 5
Y=2x+4
