i need help from a girl cause a stuip boy and yall are smart and I need help with math make a zoom meeting

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Solve the inequality and graph 6j - 7 < 5