Question

12. Find the value of x, if \left(\frac{3}{4}\right)^{2x} \times \left(\frac{3}{4}\right)^1 = \left(\frac{3}{4}\right)^{3x} \div \left(\frac{3}{4}\right)^2 13. The sum of three consecutive integers is 93. What are these integers? 14. The angles of a triangle are in the ratio 3: 5: 7. Find the angles. 15. What should be added to $2x^2 - xy + 5y^2$ to obtain $-5x^2 - 3xy - 2y^2$? 16. Simplify: $2\frac{1}{4} - \left[4\frac{3}{4} - \left\{2 + \left(3\frac{1}{3} \div 1\frac{2}{3} \times 1\frac{1}{4} - 4\right)\right\}\right]$

          12. Find the value of x, if \left(\frac{3}{4}\right)^{2x} \times \left(\frac{3}{4}\right)^1 = \left(\frac{3}{4}\right)^{3x} \div \left(\frac{3}{4}\right)^2
13. The sum of three consecutive integers is 93. What are these integers?
14. The angles of a triangle are in the ratio 3: 5: 7. Find the angles.
15. What should be added to $2x^2 - xy + 5y^2$ to obtain $-5x^2 - 3xy - 2y^2$?
16. Simplify: $2\frac{1}{4} - \left[4\frac{3}{4} - \left\{2 + \left(3\frac{1}{3} \div 1\frac{2}{3} \times 1\frac{1}{4} - 4\right)\right\}\right]$

$12. Find the value of x, if ((3)/(4))^2x ×((3)/(4))^1 = ((3)/(4))^3x ÷((3)/(4))^2 13. The sum of three consecutive integers is 93. What are these integers? 14. The angles of a triangle are in the ratio 3: 5: 7. Find the angles. 15. What should be added to 2x^2 - xy + 5y^2 to obtain -5x^2 - 3xy - 2y^2? 16. Simplify: 2(1)/(4) - [4(3)/(4) - {2 + (3(1)/(3)÷ 1(2)/(3)× 1(1)/(4) - 4)}]$

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