Basically expand
use FOIL (a way to remember distributive property)
first outer inner last
that is th eorder to multiply them
First: x times 2x=2x²
Outer: x tmes 9=9x
Inner: -8 times 2=-16x
last: -8 times 9=-72
add them
2x²+9x-16x-72
2x²-7x-72
Answer:
C. 2 hours
Step-by-step explanation:
50h= 190-45h
50h + 45h = 190
95h = 190.
190÷95= 2h
Answer is (d).
Let's take the constant as K.
y=K. (1/x)
K = yx
K = (-16) x (-64)
K = 1024
48 degrees remains
divide minutes by 60
36/60 = 0.6
then divide seconds by 3600
12/3600=0.003 ( to nearest thousandth)
now add them all up
48 +0.6 + 0.003 = 48.603 degrees
