What is the difference? Express the answer in scientific notation. (4.34 times 10 Superscript negative 8 Baseline) minus (3.8 times 10 Superscript negative 8)
0.54 times 10 Superscript negative 16
5.4 times 10 Superscript negative 9
0.54 times 10 Superscript negative 8
5.4 times 10 Superscript negative 7

Which logarithmic equation is equivalent to the exponential equation below? e^a=55(you will receive 34 points)

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?