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please see attachment and solve the questions. i don't mind you writing it CLEARLY on a peace of paper and take a clear picture of it if thats what works for you, I'm fine with typing it or writing it either ways is OK.
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Explanation & Answer
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1)
a) 𝐴 = 𝟓𝟎 + 𝟐𝟓𝒉, where ℎ is the number of hours.
b) It is 𝐴(2.5) = 50 + 25 ∙ 2.5 = 𝟏𝟏𝟐. 𝟓𝟎 ($).
c) 162.5 = 50 + 25ℎ, ℎ =
2) The slope is 𝑚 =
162.5−50
25
11.68−12.70
2008−2005
=
=−
112.5
25
1.02
3
=
225
50
= 𝟒. 𝟓 (hours).
= −0.34 (%), so the predicted value is
11.68 + 𝑚 ∙ (2013 − 2008) = 11.68 − 0.34 ∙ 5 = 𝟗. 𝟗𝟖 (%).
3)
a) The equation is 𝐶 = 𝐼 + 18𝑚, where 𝐼 is the set-up fee and 𝑚 is the number of
months.
b) We know 81 = 𝐼 + 18 ∙ 2, so 𝐼 = 81 − 36 = 𝟒𝟓 ($).
c) After 5 it costs 45 + 18 ∙ 5 = 45 + 90 = 𝟏𝟑𝟓 ($).
4) All real numbers (no restrictions).
5) The ...