2. The below pictures are few natural examples of parabolic constructions which are represented by
a quadratic polynomial. A parabolic arch is an arch in the shape of a parabola in structures; their curve
represents an efficient method of load and so can be found in bridges and in architecture in a variety of
forms.
i. In the standard form of quadratic polynomial ax²+bx+c where a,b and c are
(a) All are real (b) All are rational numbers.
(c) a is a non-zero real number and b and c are any real numbers. (d) All are integers
ii. If the roots of the quadratic polynomial are equal then
(a) a²=bc (b) a=b(c) b=c (d) b2
=4ac
iii. If the sum of the roots is –p and product of the roots is -1/p then the quadratic polynomial is
(a) k(-px²+
+1) (b) k(-px² -
- 1) (c) k(x²+px-1
)* (d) k(x²- px+1
)
3. Newtonian mechanics demonstrates that the displacement of an object in free fall is given by the
relation s = ut + 1
2
at², where s is the displacement, u is the initial velocity, a is the acceleration, and t is the
time. This displacement equation is a polynomial expression. Polynomials enable people to describe the
physical world.
i. For example, assume that a ball is released from rest at the top of a building measuring 8.52 meters
tall. How long does it take for that ball to reach the ground?
(a) 1.23 seconds (b) 9.8 seconds (c) 1.32 seconds (d) 32 minutes
ii. Which is the true statement
(a) If time increases the displacement increases.
(b) If time decreases the displacement increases.
(c) Time is not changing, but displacement is happening.
(d) None of the above
Fast ans please urgent
Answers
Step-by-step explanation:
2. The below pictures are few natural examples of parabolic constructions which are represented by
a quadratic polynomial. A parabolic arch is an arch in the shape of a parabola in structures; their curve
represents an efficient method of load and so can be found in bridges and in architecture in a variety of
forms.
i. In the standard form of quadratic polynomial ax²+bx+c where a,b and c are
(a) All are real (b) All are rational numbers.
(c) a is a non-zero real number and b and c are any real numbers. (d) All are integers
ii. If the roots of the quadratic polynomial are equal then
(a) a²=bc (b) a=b(c) b=c (d) b2
=4ac
iii. If the sum of the roots is –p and product of the roots is -1/p then the quadratic polynomial is
(a) k(-px²+
+1) (b) k(-px² -
- 1) (c) k(x²+px-1
)* (d) k(x²- px+1
)
3. Newtonian mechanics demonstrates that the displacement of an object in free fall is given by the
relation s = ut + 1
2
at², where s is the displacement, u is the initial velocity, a is the acceleration, and t is the
time. This displacement equation is a polynomial expression. Polynomials enable people to describe the
physical world.
i. For example, assume that a ball is released from rest at the top of a building measuring 8.52 meters
tall. How long does it take for that ball to reach the ground?
(a) 1.23 seconds (b) 9.8 seconds (c) 1.32 seconds (d) 32 minutes
ii. Which is the true statement
(a) If time increases the displacement increases.
(b) If time decreases the displacement increases.
(c) Time is not changing, but displacement is happening.
(d) None of the above
Fast ans please urgent
nahi patahhhjhjhhhhhhhhhhhhhhh