Question

D.A.V. school of Delhi decided different types 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 number of students as () a polynomial in term of the variable (a) 1 12 2 + 7 12 + 15 (b) 1 4 2 + 7 4 + 10 (c) 7 12 2 + 1 12 + 10 (d) 1 4 2 + 7 4 + 15 (ii) Write the coefficient of in the polynomial (a) 9 13 (b) 7 12 (c) 11 12 (d) 13 12 (iii) Write the coefficient of 2 in the polynomial (a) 1 13 (b) 1 10 (c) 1 12 (d) 15 (iv) Value of () at = 2 (a) 33 2 (b) 11 2 (c) 22 3 (d) 14 3 (v) The polynomial () = 1 4 2 + 7 4 + 15 is a (a) Monomial (b) Trinomial (c) Cubic polynomial (d) Binomial​

Answer 1

Answer:

the Binomial

Step-by-step explanation:

12 + 34'*748

Answer 2

Answer:

Polynomial

Explanation:

Let a total number of students of x then $\frac{1}{12}$th times the no. of students will be $\frac{x^{2} }{12}$

Further, $\frac{7}{12}$th times the number of students is $\frac{7x}{12}$

Hence the polynomial will be $\frac{x^{2} }{12} +\frac{7x}{12} +15$

#SPJ3