Question

Помагите пжлст!!!!!!!! ​

Answer 1

Ответ:

1) a^2 = 1,84 + 3;

a^2 = 4,84;

a1 = - 2,2;

a2 = 2,2;

2) 2y^2 = 50;

y^2 = 50 : 2;

y ^2 = 25;

y1 =-5;

y2 = 5;

Объяснение:

Answer 2

Ответ:

$2 {y}^{2} = 50 \\ {y}^{2} = 50 \div 2 \\ {y}^{2} = 25 \\ y1 = 5 \\ y2 = - 5$

${a}^{2} - 3 = 1.84 \\ {a}^{2} = 1.84 + 3 \\ {a}^{2} = 4.84 \\ a1 = 2.2 \\ a2 = - 2.2$

$1) \frac{1}{3} \times 6 + \frac{4}{5} = 2 + \frac{4}{5} = 2 \frac{4}{5} = 2.8$

$2)2.4 \times 8 = 19.2$