Answer:
C(5,-9) and r=8.
Step-by-step explanation:
C(p, q) - center
r=radius
k:x^2 +y^2 +dx+ey+f=0
x^2+y^2 - 10x+18y+42=0
d=-10, e=18, f=42
p=-d/2=-(-10)/2=10/2=5
q=-e/2=-18/2=-9
r^2 =p^2+q^2-f
r^2 =5^2 +(-9)^2 - 42
r^2=25+81-42
r^2 =106-42
r^2 =64
r=sqrt(64)
r=8
C(p,q)=C(5,-9) r=8
Hello DestinyKiara99 o/
We can solve this equation using the quadratic formula
Check it out...
x² + 6x - 24 = 0
Δ = 6² - 4.1.(-24)
Δ = 36 + 96
Δ = 132
x = -6 +/- √132 x' = -3 + √33
<span> -------------- /
2 \
x'' = - 3 - </span>√33
The correct answer is the letter D
I hope this help =)
Answer:
21 ways
Step-by-step explanation:
a, b, c, d, e, f, g, linda
1 2 linda
a__ b__ __
a__c __ __
a__d __ __
a__ e__ __
a__ f__ __
a__ g__ __
b__c __ __
b__d __ __
b__ e__ __
b__ f__ __
b__ g__ __
c__d __ __
c__ e__ __
c__ f__ __
c__ g__ __
d__ e__ __
d__ f__ __
d__ g__ __
e__ f__ __
e__ g__ __
f__ g__ __
count them
in total
there are
21 triples
I am not completely sure how to name faces, but I will name them using all four points.
Faces DCBA
Faces BFGC
Faces HGFE
The line is horizontal, therefore the slope is 0.
Answer=0
