Element X decays radioactively with a half life of 11 minutes. If there are 820 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 18 grams? y = a(0.5)^ t/h

What’s the range cuz i can’t find it?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Which choice names the hypotenuse of triangle xyz? a. segment yx b. segment yz c. segment ab d. segment zx