The amount of time a certain brand of lightbulbs last is normally distributed with a mean of 1700 hours asleep and a standard deviation of 45 hours using the empirical rule what percentage of lightbulbs last between‘s 1655 hours in 1745 hours

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z