Q.3
D.A.V. School of Delhi decided different types of tours for the students to educate them. So, in
class VIII, 1/12th times the square of the total number of students planned to visit historical
monuments. 7/12th times the number of students planned to visit old age homes while 15 students
decided to teach poor children.
a) Using above information express the total number of students as a polynomial in terms of
b)
Write the degree of the polynomial.
Answers
Answer:
D.A.V school of Delhi decided different type of tours for the students to educate them.
So, In Class IX, 1
12
th times the square of the total number of students planned to visit
historical monuments 7
12
th times the number of students planned to visit old age homes
while 15 students decided to teach poor children.
(i) Using above information express the total numbers of students as a polynomial
in terms of x
(a)
2
12
+
7
12
x + 15 (b)
2
4
+
7
4
x + 10 (c) 7
2
12
+
1
4
x + 10
(d)
2
4
+
7
4
x + 15
(ii) Write the coefficient of x in the polynomial
(a) 7
12
(b) 9
12
(c) 11
12
(d) 13
12
(iii) Write the coefficient of x2
in the polynomial
(a)
5
12
(b) 1
12
(c) 15 (d) 7
12
(iv) Value of P(x) at x = 12 is
(a) 44 (b) 24 (c) 14 (d) 34
(v) The degree of the polynomial is
(a) 1 (b) 2 (c) 1 (d) 0
Step-by-step explanation:
Answer:
a. X^2÷12+7X÷12+14
b.2
Step-by-step explanation:
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