A radioactive substance decays at a rate of 10% per hour. which equation can you use to 5% of the substance left after 3 hours? A.) f(3)=3(0.90)10
B.) f(3)=10(0.90)3
C.) f(3)=100(0.10)3
D.) f(3)=100(0.90)3

Solve the x in the equation x^2+14x+17=-96

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Select all the correct locations on the table. consider the following expression. 76.493 select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column equivalent not equivalent 343 equivalent not equivalent 49 78.498 78.498 75.493 equivalent not equivalent 75.7 equivalent not equivalent