Explain how the answer is d: for a polynomial p(x) the value of p(3) is -2. which of the following must be true about p(x)? (a) x - 5 is a factor of p(x). (b) x - 2 is a factor of p(x). (c) x + 2 is a factor of p(x) (d) the remainder when p(x) is divided by x - 3 is -2.

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec