Ask question

Ask question

All categories

3 years ago

11

Trong một thùng có chứa 3 bi đỏ 4 bi đen

1 answer:

borishaifa [10]3 years ago

7 0

Answer:

The FitnessGram™ Pacer Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. Line up at the start. The running speed starts slowly, but gets faster each minute after you hear this signal. [beep] A single lap should be completed each time you hear this sound. [ding] Remember to run in a straight line, and run as long as possible. The second time you fail to complete a lap before the sound, your test is over.ep explanation:

You might be interested in

If Brian is driving 50 miles per hour how far did he drive

Naya [18.7K]

Answer:

2.5 km long after 59 miles

7 0

2 years ago

Read 2 more answers

HELP PLEASE I WILL<br> MARK BRAINLIEST

soldi70 [24.7K]

X=2
X=-6
The answer is A

4 0

3 years ago

Read 2 more answers

Suppose a polling agency reported that 44.4% of registered voters were in favor of raising income taxes to pay down the nationa

g100num [7]

Answer:

<em>95% of confidence interval for the proportion of registered voters who are in favor of raising income taxes to pay down the national debt.</em>

<em>(0.414 ,0.474)</em>

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

<em>Given sample proportion </em>

<em> p⁻ = 44.4 % = 0.444</em>

<em>Random sample size 'n' = 1049</em>

<em>Given margin of error for 95% confidence level = 3 % = 0.03</em>

<u><em>Step(ii):-</em></u>

<em>95% of confidence interval for the proportion is determined by</em>

$(p^{-} - Z_{\alpha }\sqrt{\frac{p^{-} (1-p^{-} }{n} } , p^{-} + Z_{\alpha }\sqrt{\frac{p^{-} (1-p^{-} }{n} })$ <em></em>

we know that

<em>Margin of error for 95% confidence level is determined by</em>

$M.E = Z_{\alpha }\sqrt{\frac{p^{-} (1-p^{-}) }{n} }$

<u><em>Step(iii):-</em></u>

Now

<em> 95% of confidence interval for the proportion is determined by</em>

$(p^{-} - M.E, p^{-} + M.E)$ <em></em>

<em>Given Margin of error </em>

<em> M.E = 0.03</em>

<em>Now 95% of confidence interval for the proportion</em>

$(0.444 - 0.03, 0.444+ 0.03)$ <em></em>

<em>(0.414 ,0.474)</em>

<u><em>Conclusion:-</em></u>

<em>95% of confidence interval for the proportion of registered voters who are in favor of raising income taxes to pay down the national debt.</em>

<em>(0.414 ,0.474)</em>

6 0

3 years ago

How do you solve for ? 1/5(x-4)=5

zepelin [54]

$\frac{1}{5} *(x-4) =5$
$(x-4) = \frac{5}{ \frac{1}{5}}$ (take 1/5 to right hand side, thus it will divide by 5)
$(x-4) = 25$ (simplify)
$x = 29$

6 0

3 years ago

Read 2 more answers

Isa finished 30% of his homework in 27 minutes. How many more minutes will it take Isa to complete his homework, assuming that h

Brilliant_brown [7]

Answer:

90 Minutes

Step-by-step explanation:

If he took 27 minutes to do 30% of his homework, then we can reverse the operation to find the total amount

30% is the same as 0.3, therefore you divide 27 by 0.3 because the 100% is 1, so by dividing you'll get the 100%.

7 0

3 years ago

Read 2 more answers