Answer:
the height of the cone is 24 inches.
Step-by-step explanation:
formula to find height is h = √(s^2 - r^2), where h is the height, s is the slant height, and r is the radius.
Answer:
C, E
Step-by-step explanation:
Here, we want to change the equation of a circle from general form to standard form. This is done by making the leading coefficients 1, completing the squares, and then rewriting the equation in standard form.
The leading coefficients of the given equation are 2, so we first want to divide by 2. This gives ...
x² +y² -4x -6y +8 = 0
Subtracting 8 puts us in better position to complete the squares.
x² +y² -4x -6y = -8
Now, we can add the squares of half the coefficients of the linear terms.
(x² -4x +4) +(y² -6x +9) = -8 +13 . . . . . . matches C
And we can simplify this to the standard form equation:
(x -2)² +(y -3)² = 5 . . . . . matches E
Answer:
They teach students note-taking skills. They give students the answers for tests. They provide a fast and easy way to take notes.
Step-by-step explanation:
Answer:
Length between two points:
Answer:
A=a+b
2h=20+8
2·20.4≈285.6
Step-by-step explanation: