A students says that the center of a circle with equation (x-2) ^2 + (y+3) ^2 is (-2,3). What is the student's error?

A medical clerk noticed that 7635 patients were admitted to the hospital in a one-year period. 4/15 of them had heart or lung diseases. How many patients with heart or lung diseases were admitted to the hospital during the year?

A dog's weight increased by 50% in 3 years. By the end of 3 years, the dog weighed 45 pounds. How much did the dog weigh 3 years ago?

Flying with the wind a plane went 386 km/h. Flying into the same wind the plane only went 318 km/h. find the speed of the plane in still air and the speed of the wind.

Which of the following expressions is equivalent to the one shown below (-3) ^2 * (-3) ^9 A. (-3) ^11 B. (-3) ^7 C. (-3) ^10 D. (-3) ^18

Lance says that 2,376:10 to the power of two is the same as 2,376*0.1 is he correct? why or why not?

Jaime is at a library that is 5 miles from her house. Her brother, Max, is at a rec center that is 4.5 miles from the house. The library and rec center both close at 6:00 p. m.

The perimeter of a rectangular swimming pool is 446 centimeters. The width of the pool is 7 centimeters less than the length of the pool. Find the length and the width of the swimming pool.

a toaster oven usually sells for $57. if the toaster oven is 40% off, and sales tax is 8%, what is the total price of the toaster oven

How to tell if a fraction is bigger than the other.

An ivy contains 5 mg of drug per ml and the patient needs to receive 100mg per hour what is the infusion in ml/hr