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creativ13 [48]
3 years ago
8

Cell phone users can obtain a clear signal when they are within a 42−mile radius of cell tower A. The radius that cell tower B c

overs is four times greater than this distance. How many times greater is the area of coverage from cell tower B than from cell tower A?
Mathematics
2 answers:
taurus [48]3 years ago
5 0

Answer:

16 times

Step-by-step explanation:

its tower a it will have q6 times more coverage

Basile [38]3 years ago
4 0

Answer:

It will have 16 times more coverage than cell tower A.

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The number of customers in a grocery store is modeled by the function y -X? + 10x + 50, where y is
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Using the vertex of the quadratic function, it is found that:

a) The maximum number of customers in the store is at 12 P.M.

b) 75 customers are in the store at this time.

The number of customers in x hours after 7 AM is given by:

y = -x^2 + 10x + 50

Which is a quadratic equation with coefficients a = -1, b = 10, c = 50

Item a:

The maximum value, considering that a < 0, happens at:

x_v = -\frac{b}{2a}

Hence:

x_v = -\frac{10}{2(-1)} = 5

5 hours after 7 A.M, hence, the maximum number of customers in the store is at 12 P.M.

Item b:

The value is y(5), hence:

y(5) = -(5)^2 + 10(5) + 50 = 75

75 customers are in the store at this time.

A similar problem is given at brainly.com/question/24713268

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