Ariver discharges 4 x 106 cubic feet of water into the
pacific ocean each second. there are 86,400 seconds in
one day. to find the amount of water discharged each day,
a scientist multiplied 4 x 106 by 86,400 on his calculator.
the display showed:
3456e+14
explain what 3.456e + 14 means.
oa) 3.456^14
ob) 3.456 *10^6
oc) 3.456 x 10^14
od) 3.456 x 10^-14

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?

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