Jackson = 1
+
Lopez = 6
+
Chen = 3
=
10 cousins
Answer:
y =x-12
Step-by-step explanation:
Equation of straight line is
A^2 + b^2 = c^2
a = x
b = 14
c = x+10
x^2 + 14^2 = (x + 10)^2
( x^2 + 196 = x^2 + 20x +100 ) - x^2
( 20x +100 = 196 ) -100
( 20x = 96 ) / 20
x = 4.8
Square root shows up
step 1
[ 10 + sqrt(3) ] * 1/2 = 5 + 1/2sqrt(3)
sqrt(90) = sqrt( 3 * 3 * 10) = 3 sqrt(10)
hope this helps : P
step 2
multiply both above together:
3sqrt(10) * [ 5 + 1/2sqrt(3) ] = 15 sqrt(10) + 3/2sqrt(30)
