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Anit [1.1K]
3 years ago
10

bill dupp lumber yard charges $2.80 for each cubic foot of sand delivered,plus $50 to deliver the sand. is this function continu

ous or discrete?
Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Answer:

2.80×50

Step-by-step explanation:

2.80×50 step by step

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The measure of each exterior angle of a regular 30-gon is
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2 years ago
Choose the best answer from among choices below. A police department wants to find out if a correlation exists between x = the n
ira [324]
∑x = 5 + 7 + 8 + 4 + 11 + 12 + 8 + 7 = 62
(∑x)^2 = 62^2 = 3,844
x bar = 62 / 8 = 7.75
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∑y = 79 + 82 + 83 + 81+ 86 + 89 + 91 + 84 = 675
(∑y)^2 = 455,625
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∑xy = 395 + 574 + 664 + 324 + 946 + 1,068 + 728 + 588 = 5,287
 
r = (∑xy - n(x bar)(y bar)) / (sqrt(∑x^2 - n(x bar)^2) sqrt(∑y^2 - n(y bar)^2)) = (5,287 - 8(7.75)(84.375)) / (sqrt(522 - 8(7.75)^2) sqrt(57,069 - 8(84.375)^2)) = (5,287 - 5,231.25) / (sqrt(522 - 480.5) sqrt(57,069 - 56,953.125)) = 55.75 / (sqrt(41.5) sqrt(115.875)) = 55.75 / 69.3456 = 0.8039




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3 years ago
Write 3.764x10^-5<br> in standard notation.
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37.64 × 10^-6
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