Find the unknown side of a rectangle solid. v=30 cm3, h=3 cm, w=5 cm

V = 30cm³
H = 3cm
W = 5cm
L = ?

V = H × W × L

therefore:
3 × 5 × L = 30
15L = 30
L = 30 : 15
L = 2 (cm)

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*