Answer: B (-12, 15)
Step: (3×-4) =-12
And (3×5)= 15
Fewer meters, centimeters are too small of a unit to measure a doorway
Divide 75 by 2:
75 / 2 = 37.5
Now you need the whole number below 37.5 and the whole number above 37.5:
37 + 38 = 75
The numbers are 37 and 38
Simple...
you have:

You want to find m-->>>
1.)Isolate m

Leaving you with...
F*

=

Keep isolating m-->>>


Square root to solve what just m is-->>>

=

That is how you solve for m...
Thus, your answer.
Yo sup??
To solve this question we have to apply trigonometric ratios
sin31=UT/TV
TV=UT/sin31
=7.76
=7.8
Hope this helps.