4) Find the area of the circle. Find the solution in terms of , and then convert the result into decimal form rounded to the nearest hundredth using 3.14 for .
The circumference is 40 decimeters.
A= 1,600 dm?
A= 1.256 dm?
A= 400 dm?
A= 800x
A = 5.024 dm?
A= 2.512 dm

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

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.