A spring attached to the ceiling is stretched 2.45 meters by a four kilogram mass. The mass is set into motion in a medium that imparts a damping force numerically equal to 16 times the velocity. If the mass is pulled down two centimeters and released, the solution for the position isa. x = 0.02e^2t - 0.04te^2t b. x =2e^-2t + 4te^-2t c. x = 0.02e^-2t + 0.04te^-2t d. x = e^-2t sint e. x = 0.02e^-2t cost

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.