A.\(4\)
B.\(5\)
C.\(2\)
D.\(3\)

A.\(M + m = \dfrac{1}{5}\)
B.\(M + m =  - \dfrac{1}{5}\)
C.\(M + m =  - \dfrac{4}{5}\)
D.\(M + m =  - 1\)

A.\(D = \left( { - 1;3} \right)\) 
B.\(D = \left( { - \infty ; - 1} \right) \cup \left( {3; + \infty } \right)\)
C.\(D = \left( { - \infty ; - 1} \right] \cup \left[ {3; + \infty } \right)\) 
D.\(D = \left[ { - 1;3} \right]\)

A.\(x = 3a + 5b\)
B.\(x = {a^5}{b^3}\)
C.\(x = {a^5} + {b^3}\)
D.\(x = 5a + 3b\)

A.\(24\pi \sqrt 5 \)
B.\(48\pi \)
C.\(24\pi \)
D.\(f\left( t \right) = {t^2} + t\)

A.\(f\left( t \right) = 2{t^2} - 2t\)
B.\(f\left( t \right) = {t^2} - t\)
C.\(f\left( t \right) = t - 1\)
D.\(f\left( t \right) = {t^2} + t\)

A.\(m =  - 5\)
B.\(m =  - 3\)
C.\(m =  - 6\)
D.\(m =  - 4\)

A.\(4\pi {a^3}\)
B.\(\dfrac{{16}}{3}\pi {a^3}\)
C.\(16\pi {a^3}\)
D.\(\dfrac{{32}}{3}\pi {a^3}\)

A.\(0\)
B.\( - 5\)
C.\( - 1\)
D.\( - 2\)

A.\(S = \pi {r^2}\)
B.\(S = 4\pi {r^2}\)
C.\(S = \dfrac{4}{3}\pi {r^3}\)
D.\(S = \dfrac{3}{4}\pi {r^2}\)