Isamu decided to use blocking to deal with an extraneous factor in his experiment. what will blocking do to the subject in his experiment? a. divide them into groups randomly

b. divide them into groups based on similarities

c. divide them into groups based on an alphabetized list

d. divide them into groups based on whether he likes them

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: