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kobusy [5.1K]
1 year ago
14

Irving spent the day shopping and made the following purchases: Item Cost ($) Novel 8.75 Shirt 21.66 Lunch 9.13 Potted plant 16.

89 When Irving was done, he checked his account balance and found he had a total of $95.06. How much money was in Irving’s account to begin with? a. $56.43 b. $151.49 c. $38.63 d. $142.36
Mathematics
2 answers:
laiz [17]1 year ago
7 0
The answer is B. i just took the quiz and got 100%
malfutka [58]1 year ago
5 0

Solution:

Amount spent by Irving:

 Item                                 cost($)

 Novel                                8.75

  Shirt                                 21.66

  Lunch                              9.13

  Potted plant                   16.89

Total money spent   =     $56.43.

Amount of money In Irving account= $95.06.

Amount of  money was in Irving’s account to begin with =$56.43+$95.06=$151.49.

Answer:$151.49.

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Over each subinterval, we approximate f(x) with the quadratic polynomial

p_i(x)=f(\ell_i)\dfrac{(x-m_i)(x-r_i)}{(\ell_i-m_i)(\ell_i-r_i)}+f(m_i)\dfrac{(x-\ell_i)(x-r_i)}{(m_i-\ell_i)(m_i-r_i)}+f(r_i)\dfrac{(x-\ell_i)(x-m_i)}{(r_i-\ell_i)(r_i-m_i)}

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1 year ago
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