I think the answer is 7 if i am not mistaking
Answer:
60$
Step-by-step explanation:
Shipping is 7.50 and the 7 items are 52.5 total
Answer:
A man drove x miles per hour for 3 hours and (2x-60) miles per hour for the next 4.75 hours.Express the total distance traveled in terms of x.
Total distance covered by the man in terms of 'x' = (12.5x-285)miles
Step-by-step explanation:
Given:
Speed of a man = 'x' miles/hour
Time taken =
hour
So, distance = product of speed and time.
Distance covered in term of 'x' 
Now,
Speed =
miles/hour
Time taken=
hours
Distance
= 
= 
=
miles
Total distance covered by the man = Summation of
and 
= 
=
miles
So the total distance covered by the man in terms of 'x' = (12.5x-285) miles.
1.867 is the answer unless you need to round up more.
(x-h)^2 + (y-k)^2 = r^2
r=3
(x-h)^2 + (y-k)^2 = 3^2
the center lies on the y-axis --> h=0
x^2 + (y-k)^2 = 3^2 = 9
expand
x^2 + y^2 -2ky + k^2 = 9
x^2 + y^2 -2ky + (k^2 - 9) = 0
compare to general form
A=1 , B=1 and C =0
D= -2k and E=k^2 - 9