Question

please tell

1. The zeroes of a quadratic polynomial x 2 + 24x + 144 are

(a) both positive (b) both negative (c) one positive and one negative (d) both equal

2. The pair of linear equations 3x + 5y – 3= 0 ; 6x + ky -8 = 0 has no solution if the value of k is

(a) k = 5 (b) k = 10 (c) k ≠ 5 (d) k ≠ 10
3. The zeroes of the quadratic polynomial x 2 + kx + k , where k≠0 ,

(a) cannot be both positive (b)cannot be both negative (c) are always unequal (d) are always equal

4. Three chairs and two tables cost Rs. 1850. Five chairs and three tables cost Rs. 2850. Then the total cost of 1 chair and 1 table is

(a) Rs. 800 (b) Rs. 850 (c) Rs. 900 (d) Rs. 950

5. If 4x + 6y = 32 ; 4x – 2y = 4, then 8y =

(a) 28 (b) 30 (c) 36 (d) 42

6. In covering a distance of 30 Km, Sunny takes 2 hours more than Bunny . If Sunny doubles his speed, he would take 1 hour less than Bunny . Then Sunny’s speed is

(a) 5 Km/hr (b) 7.5 Km/hr (c) 6 Km/hr (d) 6.25 Km/hr

7. The quadratic polynomial whose zeroes are 3 and -5 is

(a) x 2 - 2x -15 (b) x 2 - 2x + 15 (c) x 2 + 2x + 15 (d) x 2 +2x-15

8.The point of intersection of the lines represented by 3x – 2y = 6 and the y – axis is

(a) (2,0) (b) (0,-3) (c) (-2, 0) (d ) (0, 3)

9. The zeroes of the polynomial x2 -9 are

(a) 3,3 (b) 3,-3 (c) -3,-3 (d) None of these.

10. x = 2, y = 3 is a solution of the linear equation

(a) 2x +3y – 13 = 0 (b) 3x + 2y -31 = 0 (c) 2x – 3y +13 = 0 (d) 2x + 3y + 13 = 0

answer correctly​

please tell

Answer 1

Step-by-step explanation:

I don't know answer....... Sorry..... Sorry

Answer 2

Answer:

man this is our school's today's question paper.

Step-by-step explanation:

date 24.08.2021