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Mazyrski [523]
3 years ago
10

A safety regulation states that the maximum angle of elevation for a rescue ladder is 72º. A fire department's longest

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
6 0

Answer:

  110sin(72°) feet

Step-by-step explanation:

In the right triangle with the 110 ft ladder as the hypotenuse, the side opposite the 72° angle represents the maximum height the ladder will reach. The definition of the sine function tells you ...

  Sin = Opposite/Hypotenuse

so the Opposite side will be ...

  ladder height = (110 ft)sin(72°)

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The authors of a paper presented a correlation analysis to investigate the relationship between maximal lactate level x and musc
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Answer:

a) Sample correlation coefficient, r = 0.7411

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Step-by-step explanation:

a) The formula for the sample correlation coefficient is given by the formula:

r = \frac{S_{xy} }{\sqrt{S_{xx} S_{yy} }} }

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b)

i) formula for the test statistic is given by the formula:

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t = 4.102

ii) Degree of freedom, df = n -2

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The P-value is calculate from the degree of freedom and the test statistic using excel

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P-value = (=TDIST(4.1,12,1)

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What is the value of u if 6u =15
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