Find the value of the derivative (if it exists) at the indicated extremum. (if an answer does not exist, enter dne. ) f(x) = x2 x2 2.

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent