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DerKrebs [107]
3 years ago
15

Cell phone company charges$50 for an 800-minute monthly plan, plus an additional $0.22 per minute for every minute over 800. if

a customer's bill ranged from a low of $67.16 to a high of $96.86 over a 6-month period, what were the most minutes used in a single month
Mathematics
1 answer:
pentagon [3]3 years ago
3 0
The most used minutes in a moth is 1013.
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What is the length of AB?
makkiz [27]
The radius of the circle is given to be r = 14.5

Let the center be O. So OB is the radius = 14.5

We can draw a triangle as shown in the image below. We have a right angled triangle. We know the hypotenuse and the base, we need to find the perpendicular side. This can be done using the Pythagorean theorem.

So, we can write:

(14.5)^{2}=10^{2}+OA^{2} \\  \\ 
OA^{2}=110.25 \\  \\ 
OA=10.5

Thus, the measure of OA = 10.5

OB = OA + AB

14.5 = 10.5 + AB
⇒
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blagie [28]

Answer:

<h2>A = 2.25π</h2>

Step-by-step explanation:

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Substitute:

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