A number x, rounded to 1 significant figure is 40. Write the error interval

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

what is the rest of the question? ?

using pemdas, (order of operations) you'll see the answer is 24.