The domain of (x+1)/(x^2 + 2x - 3) is a. all real numbers
b. all real numbers except 1 and -3.
c. all real numbers except -1.
d. all real numbers except -3, -1, and 1.
e. all real numbers except -3.

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles

Nikolas calculated the volume of the prism. his work is shown below.