Questions in mathematics

Questions in mathematics

[Done] What is the formula for the area of a circle?

[Done] How do I identify the lines of symmetry in a conic section?

[Done] HELP PLEASE If the radius of the base of the cone, r, is 2 feet and the height,h, is 12 feet, what is the volume of the cone?

[Done] Find the equation of the line through the point (2, 5) that cuts off the least area from the first quadrant. Give your answer using the form below: [tex]y-A = B(x-C)[/tex]

[Done] The cost to rent a construction crane is $750 per day plus $250 per hour of use. What is the maximum number of hours the crane can be used each day if the rental cost does not exceed $2500 per day? Write and solve the inequality.

[Done] Is 0.1 km greater than 10 mm?

[Done] What is [tex]\frac{1}{8} \times \frac{3}{8}[/tex] and how do you solve the problem?

[Done] Calculate: 39.42 divided by 5.4

[Done] A desk is on sale for 34% off. The sale price is $363. What is the regular price?

[Done] The dance committee has a budget of $125 to decorate the gym for a spring dance. They have already spent $65. Some members want to buy helium balloons that cost $0.80 each. Write and solve an inequality to show the number of balloons that the dance committee could buy. Graph the solution set for the inequality. Describe what the solution means and how the number of balloons affects the amount in the budget.