3 years ago

Help with what you can over due please help I will give brainliest thx peeps :) have a nice night lol

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

8 0

Answer:

12/30= 2/5

30/34= 15/17

9 to 30= 3/10

75 : 100= 3/4

2 to 12= 1/6

12 : 18= 2/3

Step-by-step explanation:

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Find the standard equation of the circle defined by the equation x^2 + y^2 +8x - 12y + 43 = 0. ANSWERS ATTACHED, due in 2 HOURS,

puteri [66]

Answer:

Solution: Option C

Step-by-step explanation:

Our goal here is to factor the expression such that it is converted into the circle equation (x - a)² + (y - b)² = r² where r = radius centered at point (a,b).

$x^2\:+\:y^2\:+8x\:-\:12y\:+\:43\:=\:0$ (Factor the expression "x² + 8x")

$x^2+8x = x\left(x+8\right)$ (Factor the expression "y² - 12y")

$\:y^2-12y =y\left(y-12\right)$

That leaves us with the expression $\left(x-\left(-4\right)\right)^2+\left(y-6\right)^2=3^2$ , or in other words $(x+4)^2 +(y-6)^2 = 9$ . As you can see our solution is option c.