Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. y=-x-
12
-6x - 12y = 21

neither

None.

Step-by-step explanation:

To be parallel, slope must be equal

To be perpendicular, product of slope must be -1

For Slope of y=-x- 12

x+y=-12

Slope= - coefficient of x/coefficient of y = -1/1=-1

For Slope of -6x - 12y = 21

Slope= - coefficient of x/coefficient of y = -(-6)/-12=-1/2

They are neither same (-1,1/2) nor is their product -1(-1*-1/2=1/2)

Thus, they are neither parallel nor perpendicular.

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

the diameter is 16 cm. are you a teacher?

step-by-step explanation: