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defon
2 years ago
10

Can someone plz help with this?

Mathematics
1 answer:
Scorpion4ik [409]2 years ago
7 0

Answer:

A.90

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Peter ran 15 miles without stopping during the marathon. Anne ran the distance that Peter ran before she stopped.    How far did
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A tax assessor wants to assess the mean property tax bill for all homeowners in a certain state. From a survey ten years ago, a
Jet001 [13]

Answer:

The answer is below

Step-by-step explanation:

From the table, the mean (μ) = 1390.75 and the standard deviation (σ) = 518.75

The confidence level (C) = 90% = 0.9

α = 1 - C = 1 - 0.9 = 0.1

α/2 = 0.1 / 2 = 0.05

The z score of α/2 (0.05) is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.645.

The margin of error (E) is given as:

E=Z_\frac{\alpha}{2}*\frac{\sigma}{\sqrt{n} }  \\\\E=1.645*\frac{518.75}{\sqrt{14} } =228.07

The confidence interval = μ ± E = 1390.75 ± 228.07 = (1162.68, 1618.82)

The confidence interval is between 1162.68 and 1618.82.

7 0
3 years ago
Can you use a proportion to solve for a missing side length when given two similar triangles?​
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Answer:

yes you can.

Step-by-step explanation:

to answer the question asked you can solve a proportion when given two triangles, but in this one I feel somethings missing like its possibly a multiple choice.

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3 years ago
-5/k=?/8k complete the expression
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?=-40 use -5/k)*(8k here u go
6 0
3 years ago
Read 2 more answers
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