Seph

09-16-2009, 05:16 PM

Can anyone help me with the following problems

25 over x - 21 over x-2 +2 =0

(x + 8)2 - 8(x + 8) + 15 = 0

Two television monitors sitting beside each other on a shelf in an appliance store have the same screen height. One has a conventional screen, which is 3 inches wider than it is high. The other has a wider, high-definition screen, which is 1.8 times as wide as it is high. The diagonal measure of the wider screen is 14 inches more than the diagonal measure of the smaller. What is the height of the screens, correct to the nearest 0.1 inch?

car rental company offers two plans for renting a car.

Plan A: $20 per day and 23˘ per mile

Plan B: $60 per day with free unlimited mileage

For what range of miles will plan B save you money? Give your answer as an interval (in miles). (Round the answer to the nearest lower whole mile.)

25 over x - 21 over x-2 +2 =0

(x + 8)2 - 8(x + 8) + 15 = 0

Two television monitors sitting beside each other on a shelf in an appliance store have the same screen height. One has a conventional screen, which is 3 inches wider than it is high. The other has a wider, high-definition screen, which is 1.8 times as wide as it is high. The diagonal measure of the wider screen is 14 inches more than the diagonal measure of the smaller. What is the height of the screens, correct to the nearest 0.1 inch?

car rental company offers two plans for renting a car.

Plan A: $20 per day and 23˘ per mile

Plan B: $60 per day with free unlimited mileage

For what range of miles will plan B save you money? Give your answer as an interval (in miles). (Round the answer to the nearest lower whole mile.)