Hello,
x^2+y^2+8x-6y+21=0
Rewritten in the form of a standard circle equation:
(x-(-4))^2+(y-3)^2=2^2
Therefore, the circle properties are:
(a,b)=(-4,3),r=2
The radius of the circle whose equation is <span>x^2 + y^2 + 8x - 6y + 21 =0 is 2.
Faith xoxo</span>
Answer:
x=1
y=-1
Step-by-step explanation:
x = y+2
x+2y = 5
y+2 +2y = 5
3y +2 = 5
3y = 3
y=1
x=-1
Yes initial amount is 2044 (in millions)
Since the function is from 2000 then you can set it up as
B(t)=2044*a^t
To solve for "a" use the second number given, 3846, and since this value is 5 years after 2000 t=5
so we plug in these values
3846=2044*a^5
we now solve for a
first, divide by 2044
3846/2044=a^5
next, we take the 5th root
<span>5sqrt(3846/2044) = a
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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Answer:
-104
Step-by-step explanation:
5+8=13
2-10=-8
13×-8=-104
Answer:
(5,-3)
Step-by-step explanation:
y+3 = 3x-15
y= -2x + 7
plulg y in
-2x+7+3 = 3x-15
combine like terms
-2x+10 = 3x-15
add 2x to both sides and add 15 to both
5x=25
x=5
y=-2(5) + 7
y= -10 + 7
y= -3
(5,-3)
