Answer:In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line. The adjective real in this context was introduced in the 17th century by René Descartes, who distinguished between real and imaginary roots of polynomials
Step-by-step explanation:
An equation whose roots are x=3 and x=11 is
|(x-3)(x-11)|=0
We can check that, plugging in x=3 or x=11, makes both sides of the equation equal.
The answer is D . Because 20+20=40 10+10=20 so 40+20=60
Answer:
the last one is not part of the proof, because it's not SSS it's SAS.