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3 years ago

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Hi I need this question please asap.

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Contact [7]3 years ago

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Ike Jehoshaphat isn’t oso los

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6 + (9 − 1) 2 ÷ 4 <br> the 2 is an exponent

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2 years ago

What is the slope of the line through (1,0) and (3,8)

Arturiano [62]

Slope = (y2 - y1)/(x2 - x1)

Slope = (8 - 0)/(3 - 1)

Slope = 8/2

Slope = 4

Answer

4

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3 years ago

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what are the missing variables?

Julli [10]

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2 years ago

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Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

$df=n-1=28-1=27$

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

$MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450$

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2 years ago

If melba rode her bike 7/8 miles in 1/4hour. what is the unit rate in miles per hour

kari74 [83]

3.5 miles per hour. 7/8 (.875) divided by 1/4 (.25) equals 3.5. Hope this helps!

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3 years ago