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hoa [83]
2 years ago
6

find the critical t value for each of the following confidence intervals: 90% confidence interval when n = 20

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
6 0
The answer is n=40 and that’s because bxndndns
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I need help with my algebra hw
Y_Kistochka [10]

Answer:

well?

Step-by-step explanation:

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3 years ago
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Convert into slope-intercept form: <img src="https://tex.z-dn.net/?f=y-1%3Dm%28x-3%29" id="TexFormula1" title="y-1=m(x-3)" alt="
aliina [53]

Answer:

y=2x-5

Step-by-step explanation:

First simplify: y-1=2x-6

y-1=2(x-3)

First simplify and distribute everything.

<u>y-1=2x-6</u>

So, x equals 2 because it got distributed into the numbers inside the parenthesis.  Same with the 2 and -3.  They multiplied to become -6.

Since it's y-1=2x-6, you can simplify it even more so the -1 goes to the other side and turns into positive 1.

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This results in y=2x-5.  Hope this helped ;)

6 0
3 years ago
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Express the number 20000 as a single digit integer times a power of 10
PolarNik [594]
The answer is 2 x 10^4 or 2 to the power of 4 (4th power) where;
2  x 10 x 10 x 10 x 10
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Expressing a number to a single digit integer times a power of 10 is also writing a number in scientific form,where the number is multiplied by 10 to nth "power". Scientific notation is also called standard index form whereby, too large or too big numbers.
In writing the scientific notation of a number it follows this form: m x 10^n ( m is multiplied to 10 to the power of n)  where, m, the coefficient, is the real number and n is the exponent integer.<span><span /></span>

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3 years ago
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Paraphin [41]

Answer:

88 inches

Step-by-step explanation:

Diameter is 2 times the radius (r) so divided 28 by 2 to get 14 as the radius.

Plug this in:

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28π

87.964

88

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3 years ago
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Select the correct answer.
laila [671]
B but I don’t know 100%
3 0
3 years ago
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