Question

10. Simplify: (3x² + y2) (2x + 3y2)
11. Multiply using the formula of special product : (x -- y) (x + y) (x2 + y2)
-12. The cost of 12 packets of tea each weighing 100 grams is * 144. What will be the cost of 18
packets if each packet weighs 90 grams? 216.
13. In how many years will a sum of money double itself at 20% per annum simple interest?
14. Construct a AABC in which zB = 70%, AB = 4.8 cm and BC = 5.2 cm.
15. The population of a town increases 5% annually. If it is 15435 now, find its population a year
ago.
16. Five men or nine women can do a piece of work in 19 days. In how many days will 3 men and 6
women do the same work?
17. Two sides of a right-angled triangle measures 15 cm and 8 cm respectively. Determine the
length of the hypotenuse,
78. Solve:
X-X-2
(i)
(ii) 0.5X +-0.35x + 7
4 5
5
x-1 X-2-1​

Answer 1

Answer:

I don't know but all the best for exam

Step-by-step explanation:

I don't know but all the best for exam