The equation of a circle is x2 + y2 + 6x + 4y + 10 = 1. What is this equation written in its standard form?

A) (x + 3)2 + (y + 2)2 = 4
B) (x + 6)2 + (y + 4)2 = 4
C) (x + 6)2 + (y + 4)2 = 10
D) (x + 3)2 + (y + 2)2 = 10

answer : A

Step-by-step explanation:

hello :

x² + y² + 6x + 4y + 10 = 1

(x²  + 6x )+(y²+ 4y) + 10 = 1

(x²  + 6x+9-9 )+(y²+ 4y+4-4) + 10 = 1

(x²  + 6x+9)-9 +(y²+ 4y+4)-4 + 10 = 1

(x+3)²+(y+2)² = 4     answer : A

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168