Answer:
r represents the rate the electric company charges per kilowatt-hour.
Step-by-step explanation:
r represents the rate the electric company charges per kilowatt-hour.
Total charged to Zhao was 63.25 out of which 3.50 is administrative charge (fixed).
- Total charge consists of "administrative charge" + "charge per kilowatt hours*hours used
- The equation is given as 63.24 = 3.5 + 800r
<u>Matching the "word equation" with "mathematical equation", we see that 800 is the hours used and r is the charge per kilowatt hour.</u>
The answer is C) 30 I hope this helped
Answer:
units
Step-by-step explanation:
The distance formula is 
where 
is the distance between points 
and 
. Let 
and 
, thus:
Therefore, the distance between points P(5,1) and Q(3,4) is units.
Mabye try making the triangle a right triangle and use SohCahToa (sin, cos, tan) to figure out each angle?
Answer:
x=1
Step-by-step explanation:
-4+7x=3 add 4 to both sides
7x=7 divide 7 on both sides
x=1
