Consider equations of the form x - a= sqrt(bx+c) , where a, b, and c are all positive integers and b > 1. (a) Create an equation of this form that has 7 as a solution and an extraneous solution. Give the extraneous solution.
(b) What must be true about the value of bx+c to ensure that there is a real number solution to the equation? Explain.

Only answer if you can explain this to me correctly. Do not answer for points please.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?