X^2 + y^2 - 2x + 7y + 1 = 0
(x^2 - 2x) + (y^2 + 7y) + 1 = 0
(x^2 - 2x + 1) + (y^2 + 7y) + 1 = 0+1
(x^2 - 2x + 1) + (y^2 + 7y + 49/4) + 1 = 0+1+49/4
(x - 1)^2 + (y + 7/2)^2 + 1 = 0+1+49/4
(x - 1)^2 + (y + 7/2)^2 + 1-1 = 0+1+49/4-1
(x - 1)^2 + (y + 7/2)^2 = 49/4
(x - 1)^2 + (y + 7/2)^2 = (7/2)^2
The final answer is choice B
Scott viewed 27 sports cars because:
1/8 of 72 is 9
And 9 multiplied by 3 would make that 3/8
Also, 9 multiplied by 3 is 27
So that's the answer. Boom.
Change it to make y= on one side
3x + 4y = 1
4y = -3x + 1
y = -3/4x + 1/4
The slope is the fraction before x
The slope is -3/4
<span>9.999 ×10^4 is written in scientific notation</span>
Ratio of the sides of the triangles,
<em>2 : 3 : 4 </em>
Let's consider each side to be
2x,3x and 4x
Therefore the perimeter of the triangle is,
<em>2x + 3x + 4 x = 9x </em>
The shortest side is 15 inches.
We know that the smallest value in the above ratio is 2
Therefore,
2x = 15 inches
x = 7.5 inches
<u>☞</u><u>Perimeter of the triangle </u>
= 9x
= 9 * 7.5 inches
= <u>67.5 inches</u>
