Center (0,-3)
radius = 3
answer is D.
Answer:
a. 4 hours
b. if studio b increases' its hourly price, the two studios will never have the same price.
Step-by-step explanation:
The function for studio 1 is
cost = 8(hours) + 10
studio 2
cost = 6(hours) + 16
they cost the same after 4 hours. making a table really helps.
Answer:
lower limit : 36.44
upper limit : 39.56
Step-by-step explanation:
Given :
s = 9
n = 90
x = 38.9
Alpha, α = 0.10
∴ 
The confidence interval is :




Therefore,
lower limit : 36.44
upper limit : 39.56