Em um grupo de pessoas, as idades são : 10, 12, 15 e 17 anos. Caso uma pessoa de 18 anos junte-se ao grupo, o que acontece com a média das idades do grupo? *

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)

Solve the equation.then check your solution 8=1.88+a