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erastovalidia [21]
2 years ago
6

Paul is comparing the cost of cell phone services. At CellCoA, the phone he wants costs $305 and the unlimited calling plan cost

s $45 per
month. At CellCoB, Paul can purchase the same phone for $350 and get an unlimited calling plan for $30 per month. In how many months
will both plans cost the same?
These equations, which are graphed below, represent the situation.
y = 45x + 305
y= 30x + 350
Here, x represents the
number of months and y represents the amount paid.
80
70
60
10)

Mathematics
1 answer:
Fudgin [204]2 years ago
7 0

Answer:

440

Step-by-step explanation:

305+ (45*3)= 440

350+ (30*3)= 440

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Answer:

y = 6cos(π/2)t

Step-by-step explanation:

Given in the question that,

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And,

the period is given as 4 sec

We know that model equation of simple harmonic motion is

<h3>y = a. cosb(t + c) + d</h3>

here,

a is amplitude

c is Horizontal shift or phase shift

d is Vertical shift

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Period = 2 π / b

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Given that,

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