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algol13
2 years ago
13

Ms. Hernandez has 17 tomato plants that she wants to plant in rows. She will plant 2 plants in some rows and 1 plant in the othe

rs. How many different ways can she plant the tomato plants? Make a table to solve.
Mathematics
1 answer:
garik1379 [7]2 years ago
6 0
You Kinda Have To Treat This Like Area and Width Etc. Multiplication Should be Your Answer, But I don't know About the Table Part.
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Two 5-year girls, Alyse and Jocelyn, have been training to run a 1-mile race. Alyse's 1 mile time A is approximately Normally di
tatyana61 [14]

Answer:

1.7 × 10⁻⁴

Step-by-step explanation:

The question relates to a two sample z-test for the comparison between the means of the two samples  

The null hypothesis is H₀:  μ₁ ≤ μ₂

The alternative hypothesis is Hₐ: μ₁ > μ₂

z=\dfrac{(\bar{x}_1-\bar{x}_2)-(\mu_{1}-\mu _{2} )}{\sqrt{\dfrac{\sigma_{1}^{2} }{n_{1}}-\dfrac{\sigma _{2}^{2}}{n_{2}}}}

Where;

\bar {x}_1 = 13.5

\bar {x}_2 = 12

σ₁ = 2.5

σ₂ = 1.5

We set our α level at 0.05

Therefore, our critical z = ± 1.96

For n₁ = n₂ = 23, we have;

z=\dfrac{(13.5-12)-(0)}{\sqrt{\dfrac{2.5^{2} }{23}-\dfrac{1.5^{2}}{23}}} = 3.5969

We reject the null hypothesis at α = 0.05, as our z-value, 3.5969 is larger than the critical z, 1.96 or mathematically, since 3.5969 > 1.96

Therefore, there is enough statistical evidence to suggest that Alyse time is larger than Jocelyn in a 1 mile race on a randomly select day and the probability that Alyse has a larger time than Jocelyn is 0.99983

Therefore;

The probability that Alyse has a smaller time than Jocelyn is 1 - 0.99983 = 0.00017 = 1.7 × 10⁻⁴.

8 0
3 years ago
Help pls<br> percentages
Tasya [4]

Step-by-step explanation:

100 multiple it by the percentage

3 0
2 years ago
Read 2 more answers
PLEASE HELP
cricket20 [7]
You can use the cosine rule for this - you might have to change some of the letters around for it to make sense though. Hope this helps!

4 0
2 years ago
Please please please!!!!! help!!!!
mrs_skeptik [129]

Answer:

32\588585+++==+++=+=4858i234[oy45873569756308

Step-by-step explanation:

8 0
2 years ago
The length of a rectangle is four feet longer than the width. the area is 21. find the dimension
MakcuM [25]
The length is 7 and the width is 3
7 0
3 years ago
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