Math is not exactly my strongest link, but I would say the answer to this would be C
= 7(x^2 + y^2 - 4x + 6y - 5)= 0
= 7( (x - 2)^2 - 4 + (y + 3)^2 - 9 - 5) = 0
= 7[ (x - 2)^2 + (y + 3)^2 - 18) = 0
center is at (2,-3) and radius = sqrt18 = 4.24 units
C is the answer I pretty sure of it
Answer:
-50 feet
Step-by-step explanation:
The trout is swimming 30 ft below sea level,if it were above sea level it would be positive but since its below it is negative. It then swims 20 feet lower so it would be -50 as a short cut you can use in problems like this one is to ignore the sign's and add it regularly then add the sign after the equation is done.
Answer:
x=2, -4, -1
Step-by-step explanation:
-x³-3x²+6x+8=0
Multiply entire equation by -1:
x³+3x²-6x-8=0
Since x=2 is a solution, then x-2 must be a factor. Then:
x³+3x²-6x-8/x-2=x²+5x+4
x²+5x+4=0
Factor this:
x²+5x+4=(x+4)(x+1)=0
x=-4, -1
x=2, -4, -1