Joan represents the height at which a sea gull is flying at +6 feet and the depth at which a fish is swimming at −2 feet on a number line, where 0 represents the surface of the water. which of these explains whether the sea gull or the fish is closer to the surface of the water?

the fish is closer to the surface of the water because |+6| = 6 and − |−2| = −2, and −2 < 6.

the fish is closer to the surface of the water because |+6| = 6 and |−2| = 2, and 2 < 6.

the sea gull is closer to the surface of the water because |+6| = −6 and |−2| = −2, and −2 > −6.

the sea gull is closer to the surface of the water because |+6| = 6 and − |−2| = 2, and 6 > 2.

Sorry guys but as you have a small brain

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?