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3 years ago

Ms.Drevis's garden has lots of apple trees.120 apples fall on ground in 30 seconds.How many apples fall in one second?

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

Answer:

4 apples fall in one second

Step-by-step explanation:

120/30 = 4

120 = the amount of apples

30 = the time in seconds

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prohojiy [21]

Answer:
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Explain;
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(a brainliest would be appreciated)

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3 years ago

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A student wants to survey the sophomore class of 200 students about whether the school should require uniforms. A

Fittoniya [83]

Answer: C

Step-by-step explanation:

<u>Given:</u>

Sample size (n) = 50

x = 12

$\widehat{\mathbf{p}}=\frac{\mathbf{x}}{n}=\frac{12}{50}=0.24$

Confidence level = 90%

α = 1 − 0.90 = 0.10

α/2 = 0.05

$\text { Critical value }\left(z_{c}\right)=z_{\frac{\alpha}{2}}=z_{0.05}=1.6449$

(from standard normal table)

90% Confidence interval is,

$\begin{aligned}&\text { Confidence interval }=\widehat{\mathbf{p}} \pm z_{c} \times \sqrt{\frac{\hat{\mathbf{p}}(1-\hat{\mathbf{p}})}{n}} \\&\text { C. I }=0.24 \pm 1.6449 \times \sqrt{\frac{0.24(1-0.24)}{50}} \\&\text { C. I }=0.24 \pm 1.65 \times \sqrt{\frac{0.24(1-0.24)}{50}}\left\end{aligned}$

Therefore, 90% confidence interval for the true proportion of sophomores who favour the adoption of uniforms is C

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2 years ago

Madeline has been working on a 500-piece puzzle. She has completed 0.65 of the puzzle.

gogolik [260]

I think it might be 13%

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3 years ago

Enter the equation of the circle described below.<br><br> Center (5, 2), radius = 3

riadik2000 [5.3K]

For a circle with center (h,k) and radius, r
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so

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3 years ago

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atroni [7]

Answer:

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Step-by-step explanation:

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3 years ago

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