How do you factor the quadratic equation 3x^2 + 8x + 3 to find the roots? Please I really don´t understand.

Step-by-step explanation:

This one cannot be factorized so to find the roots, use the quadratic formula.

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

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