3 years ago

A customer service center receives about 10 emails every half-hour.

1 answer:

5 0

Step-by-step explanation:

10 every 30 minutes means about one call every 3 minutes so in 6 minutes they should recieve 2 calls

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abruzzese [7]

The quadratic formula is:

$\frac{-b + \sqrt{b^2 - 4ac} }{2a}$ and $\frac{-b - \sqrt{b^2 - 4ac} }{2a}$

In this case, a = 2, b = -3, and c = -7

So, we can plug in the numbers to get:

$\frac{-(-3) + \sqrt{(-3)^2 - 4(2)(-7)} }{2(2)}$ and $\frac{-(-3) - \sqrt{(-3)^2 - 4(2)(-7)} }{2(2)}$

Simplifying, we get:

$\frac{3 + \sqrt{65} }{4}$ and $\frac{3 - \sqrt{65} }{4}$

You need to use a calculator to find what these would be in decimal form. The answer, rounded to the nearest tenth, is: x = 2.8, x = -1.3

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3 years ago

riadik2000 [5.3K]

Answer:

All three functions have the same minimum

Step-by-step explanation:

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3 years ago

Stella [2.4K]

Answer:

i'm pretty sure it is C..

Step-by-step explanation:

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3 years ago

katrin [286]

$31x^2 +14y -15x +3\\\\=x(31x-15)+14y+3$

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2 years ago

LekaFEV [45]

Answer: 304

Step-by-step explanation: first you multiply 9, 3, and 12 which equals 324. Then you subtract 20 from 324 and you get 304.

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3 years ago