Answer:
Symmetric property of equality
Step-by-step explanation:
Symmetric property of equality says a=b implies b=a.
This is what we have here we have p+3=5 implies 5=p+3.
a=p+3
b=5
Answer:
x³ + x - 3
Step-by-step explanation:
f(x) + g(x)
(x³ + 2) + (x - 5)
x³ + 2 + x - 5
x³ + x + 2 - 5
x³ + x - 3
The ratio walkers/riders is
hence
the number of riders is times the number of walkers<em />-----------------------------------------------------------
In 15 minutes,
will have dropped.
Top right answer
If x=6 is the only intercept, it means that the quadratic is tangential to the x-axis, or equivalently x=6 is a root with multiplicity 2.
The discriminant is typically zero for multiplicity 2 in a quadratic.
It will be clear looking at the quadratic formula:
if D=b^2-4ac = discriminant of the quadratic, then
x1=(-b+sqrt(D))/2a or x2=(-b-sqrt(D))/2a
if x1=x2 (double root, or multiplicity 2) then clearly D has to be zero.