The starting size of a radioactive isotope is 400 grams. If the isotope has an hourly
decrease of 50%, which graph models this
situation, y-intercept and asymptote after
t hours?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Read the excerpt from the strange case of dr jekyll and mr. hyde what do dr. jekyll's thoughts reveal about him in this excerpt? [t]he inmates of my house were locked in the most rigorous hours of slumber, and i determined, flushed as i was with hope and triumph, to venture in my new shape as far as to my bedroom. i crossed the yard, wherein the constellations looked down upon me, i could have thought, with wonder, the first creature of that sort that their unsleeping vigilance had yet disclosed to he is jealous of those who can sleep through the night. he is revered for his scientific advances. he is interested in studying the movements of the stars he is proud and enthusiastic about his initial results.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?