If 8 g of a radioactive substance are present initially and 8 yr later only 4.0 g remain, how much of the substance, to the nearest tenth of a gram, will be present after 11 yr?

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.

p

step-by-step explanation: