Please enclose fractions such as 8/7 inside parentheses:
<span>(8/7)x^3+x^4+6x+1
Next, arrange these four terms in order of power of x:
</span>x^4 + (8/7)x^3+ 6x+1 This is the standard form you wanted.
The equation of tangent to the circle
at the point (-6,8) is -6x+8y=100.
Given the equation of circle 
and point at which the tangent meets the circle is (-6,8).
A tangent to a circle is basically a line at point P with coordinates is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of circle to the point P.
Linear equation looks like y=mx+c.
Tangent to a circle of equation
at (z,t) is:
xz+ty=
.
We have to just put the values in the formula above to get the equation of tangent to the circle
at (-6,8).
It will be as under:
x(-6)+y(8)=100
-6x+8y=100
Hence the equation of tangent to the circle at the point (-6,8) is -6x+8y=100.
Learn more about tangent of circle at brainly.com/question/17040970
#SPJ1
$416.14
478.68-210-89.55+38.50+65.74+125.61=408.58x.0185=7.56
So 408.58+7.56=416.14