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2 years ago

PLEASE I REALLY NEED HELP FAST

Mathematics

1 answer:

aleksandr82 [10.1K]2 years ago

8 0

It's around 1 to 3

From 35 it's 1,2,3

From 5500 samples of 35

5500/35≈157

Now

If 1 comes from each

157(1)=157 detects

If 2

157(2)
314detects

If 3

157(3)
471 detects

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erastovalidia [21]

Answer:

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3 years ago

Evaluate this expression.<br> y + 7, if y = 12

photoshop1234 [79]

Answer:

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3 years ago

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Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres (L) of gasoline sold to his

Fudgin [204]

Answer:

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There is 80% confidence that the true population mean lies within the confidence interval.

Step-by-step explanation:

From the question we are told that

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$\= x - E < \mu < \= x + E$

=> $56 - 5.43 < \mu < 56 + 5.43$

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3 years ago

The second term in a geometric sequence is 20. The fourth term in the same sequence is 45/4 or 11.25. What is the common ratio i

kati45 [8]

$\bf \begin{array}{ccll}
n&term&value\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2&a_2&20\\
3&a_3&20r\\
4&a_4&20rr\\
&&20r^2\\\\
&&\frac{45}{4}
\end{array}\implies \stackrel{4^{th}~term}{20r^2=\cfrac{45}{4}}\implies r^2=\cfrac{45}{80}
\\\\\\
r^2=\stackrel{simplified}{\cfrac{9}{16}}\implies r=\sqrt{\cfrac{9}{16}}\implies r=\cfrac{\sqrt{9}}{\sqrt{16}}\implies r=\cfrac{3}{4}$