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LenaWriter [7]
3 years ago
10

A circular crop field has an irrigation system in which a pipe, with one end attached to a tower at the center of the field, tur

ns continuously to deliver water. The horizontal distance, in meters, from the tip of the pipe to the farmhouse is represented by y = Equals 400 sine (StartFraction pi Over 8 EndFraction x + pi) + 500, where x represents time in hours.
What does the amplitude of this function represent?

A.the length of the pipe
B.the distance between the tower and the farmhouse
C.the time it takes for the pipe to complete one full circle
D.the difference between the maximum and minimum distances from the tip of the pipe to the farmhouse

Mathematics
1 answer:
Zina [86]3 years ago
5 0

Answer:

A) length of the pipe

Step-by-step explanation:

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MATH PROBLEM

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What are the like terms on the left side of the equation?
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ser-zykov [4K]

Answer:

Step-by-step explanation:

For the sample, n = 12

Mean, x = (158.2 + 162.8 + 161.5 + 161.2 + 166.5 + 160.1 + 158.4 + 175.6 + 159.9 + 168.8 + 161.9 + 163.7)/12 = 163.22

Variance, s² = (summation(x - mean)²/n

Summation(x - mean)² = (158.2 - 163.22)^2 + (162.8 - 163.22)^2 + (161.5 - 163.22)^2 + (161.2 - 163.22)^2+ (166.5 - 163.22)^2 + (160.1 - 163.22)^2 + (158.4 - 163.22)^2 + (175.6 - 163.22)^2 + (159.9 - 163.22)^2 + (168.8 - 163.22)^2 + (161.9 - 163.22)^2 + (163.7 - 163.22)^2 = 273.5368

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This is a test for a single variance. We would set up the test hypothesis.

For the null hypothesis,

H0: σ² ≥ 25

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The formula for determining the test statistic,x² is

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Where n - 1 is the degree of freedom, df.

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For a test of 90% reliability, Confidence level = 0.9

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8 0
3 years ago
Rewrite using positive exponents 
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Answer:

Your selection is appropriate

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... a⁻² = 1/a²

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4 0
3 years ago
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Answer:

Step-by-step explanation:

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Sorry I didn’t do a but just add all the things above and u get your answer

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