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Bas_tet [7]
3 years ago
9

It takes 2/3 seconds to clap your hands how many times can you clap in 60 seconds?

Mathematics
2 answers:
lesya692 [45]3 years ago
7 0
I thought it would be 40 b/c 60 times 2/3
boyakko [2]3 years ago
3 0
Do 60 divided by 2/3 (66.6666666...)
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Simplify the following polynomial and write the answer in standard form. (9-2x^3+5^2-4x+5) - (-2x^3+2x-3)
pogonyaev
If I am reading the question correctly it would come out to -6x+42  First do all the addition and squaring, then factor in that negative.  You come out to -2x^3 +2x^3-4x-2x+25+5+9+3.  The x^3's cancel, the -x's add to -6x, then all that other adds to 42.
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3 years ago
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A brochure claims that the average maximum height for a certain type of plant is 0.7 m. A gardener suspects that this is not acc
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Answer:

As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

Step-by-step explanation:

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\mu=0.70\\N=40\\\alpha=0.05\\X=0.65\\s=0.20

2. Hypotesis testing

H_{0}=\mu=0.70

H_{1} =\mu< 0.70

3. Find the rejection area

From the one tail standard normal chart, whe have Z-value for \alpha=0.05 is 1.56

Then rejection area is left 1.56 in normal curve.

4. Find the test statistic:

Z=\frac{X-\mu_{0} }{\sigma/\sqrt{n}}

Z=\frac{0.65-0.70}{0.20/\sqrt{40}}\\Z=-1.58

5. Hypotesis Testing

Z_{\alpha}=1.56\\Z=-1.58

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As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

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4 years ago
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3 years ago
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The future worth (F) of the investment at present (P) with a compound interest i after n years is calculated through the equation,
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3 years ago
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It’ll be D) 7/46 you can reduce it by dividing everything with 4
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