245 y = 1,470
Divide each side by 245 :
<em>y = 6</em>
Did I go too fast for you ?
Answer:
The first answer, 3(pi) km^2
Step-by-step explanation:
3 x pi squared determines the area
6.8 I think I don’t know but that’s what I think
1. 700 calories
2. Half a serving
3.x=serving
350x=calories
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