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ohaa [14]
3 years ago
11

Evaluate x+y when x=−45 and y=13. Write your answer as a fraction or mixed number in simplest form. The value of the expression

is
Mathematics
1 answer:
dimaraw [331]3 years ago
4 0

Answer:

-32

Step-by-step explanation:

-45+13= -32

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The cost c, to produce b baseball bats per day is modeled by the function c(b)=0.06b^2 - 7.2b + 390. What number of bats should
Finger [1]
You have two choices.
The minimum possible cost to operate your bat factory for a day is $390,
and there are two quantities of bats that both cost that much.

One possibility: 
                   Produce no bats at all per day.  Zero.  Nada.  None.
                   Cost = 0.06(0)²  -  7.2(0)  +  390  =  $390 per day.

The other choice:
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                          = 0.06(14,400)  -  7.2(120)  +  390
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If you produce any other number of bats in a day ... more than zero
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that day.
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