Is it possible to get multiple correct answers for a mathematical expression? why or why not

Sure quite possible

Step-by-step explanation:

Suppose the expression is

y = x^2 + 4x + 3

Suppose you want the expression to = 0. That means y = 0

There are two solutions that work

x = - 3

x = - 1

You have more than 1 answer. Both are correct for what you want to do.

Try it to see if it works.

y = (-3)^2 + 4(-3) + 3

y = 9 - 12 + 3

y = 0

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet