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avanturin [10]
3 years ago
10

Please help i need to get this done by tomorrow

Mathematics
2 answers:
daser333 [38]3 years ago
6 0
It will take 9 hours because if you multiply 45 x 9 it will give you 405

Mumz [18]3 years ago
3 0
Will take 9 hours in total
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You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.
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True or false? a tangent line is a line that intersects a circle at exactly one point. APEX ​
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I believe its true

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The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e
marusya05 [52]

Answer:

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

\hat p =\frac{955-812}{955}= 0.150

0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131

0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169

And the 90% confidence interval would be given (0.131;0.169).

Step-by-step explanation:

We have the following info given:

n= 955 represent the sampel size slected

x = 812 number of students who read above the eighth grade level

The estimation for the proportion of tenth graders reading at or below the eighth grade level is given by:

\hat p =\frac{955-812}{955}= 0.150

The confidence interval for the proportion  would be given by this formula

\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}

For the 90% confidence interval the significance is \alpha=1-0.9=0.1 and \alpha/2=0.05, with that value we can find the quantile required for the interval in the normal standard distribution and we got.

z_{\alpha/2}=1.64

And replacing into the confidence interval formula we got:

0.150 - 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.131

0.150 + 1.64 \sqrt{\frac{0.150(1-0.150)}{955}}=0.169

And the 90% confidence interval would be given (0.131;0.169).

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3 years ago
4/12×1/8 in simplest form​
Sliva [168]

Answer:

\frac{1}{24}

Step-by-step explanation:

\frac{4}{12} *\frac{1}{8} =\frac{1}{24}

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A: tracy's family has greater valiablity because put the number in order

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