3.2 is the Length of y 7.5 is the length of z and the length of x is 12.5
Subtract 20n from both sides of the equation.
n^2+100-20n=0
factor using the perfect square rule.
(n-10)^2=0
set the n-10 equal to 0.
n-10=0
add 10 to both sides of the equation.
n=0
Answer:
r = -3
Step-by-step explanation:
trust.