(a) Show that the two functions Y1(t) = ( 0 et ) and Y2 (t) = ( e2t e2t ) are solutions (b) Solve the initial-value problem dY dt = ( 2 0 1 1 ) Y, Y(0) = ( −2 −1 ) . g

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%

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Write as a product: ac^2–ad+c^3–cd–bc^2+bd