The half life of a radioactive element is five years. a scientist has 18 grams of the element. the equation representing the number of grams, g, after x years is g=18(0.5) . what is the annual rate of decay? 3% 13% 87% 97%

What is the point slope form of a line with slope -5 that contains point (2,-1)

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Given: lkm jkm, clmk prove: alkmajkm jmk. choose the word that completes the sentence correctly. proof: lkm jkm and lmk * umk are given. km km by the property of congruence. equivalence symmetric reflexive transitive