HDTV screens usually have a width-to -height ratio of 16:9. Which screen dimensions are in the same proportion?

4 feet by 3 feet

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My

width-to -height ratio of 16:9

Let analyse all possible answers:

16 divided by 4 is the same as 9 divided by 3 => it is true

16 divided by 28 is different as 9 divided by 21 => it is wrong

16 divided by 48 is different as 9 divided by 27 => it is wrong

16 divided by 26 is different as 9 divided by 219=> it is wrong

We choose A.

Hope it will find you well.

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

- (2, -7)

- lines r and s and lines t and u must be parallel