Answer:
x = 6
y = 8
Explanation and graph is given in picture
I hope it helps.
Answer:
an=1*2.5^(n-1)
=2.5^(n-1)
Step-by-step explanation:
Complete question below:
What value, written as a decimal, should Lena use as the common ratio? Lena is asked to write an explicit formula for the graphed geometric sequence. On a coordinate plane, 3 points are plotted. The points are (1, 1), (2, 2.5), (3, 6.25).
Solution
Point (1, 1), (2, 2.5), (3, 6.25).
a=1
ar=2.5
ar^2=6.25
From ar and ar^2
r=6.25/2.5
=2.5
r=2.5
an=ar^(n-1)
Therefore, the explicit formula is
an=1*2.5^(n-1)
=2.5^(n-1)
Y= 2.50(x) + $20 is the linear equation
If 15 videos are rented
Y=2.50(15) + $20
Y= $57.50
67.50 = 2.50(x) + 20
19= x
19 videos were rented in 3 months
Answer:
no
Step-by-step explanation:
2:4 is 1:2, 6:16 is not one half
