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3 years ago

I just cant figure out this question and the paper is due soon! i need help asap can some one please help me?

Mathematics

1 answer:

Hatshy [7]3 years ago

6 0

Answer:

Step-by-step explanations

Clay 1.5 0.12 30

Silty Clay 1.9 0.18 40

Clay Loam 2.4 0.25 40

Silty Clay Loam 2.4 0.25 50

Sandy Clay Loam 1.8 0.20 50

Sandy Clay 1.9 0.12 50

Silt 2.0 0.40 50

Silty Loam 2.4 0.43 50

Loam 2.0 0.54 50

Sandy Loam 1.4 0.75 50

Loamy Sand 0.8 0.88 50

Fine Sand 0.7 1.25 60

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I’m pretty sure the answer is a ?

irina [24]

I believe that it’s B

7 0

3 years ago

Question 2.<br> Which fraction is equivalent to 4%?<br> A) 1/50<br> B) 2/25<br> C) 1/25

gtnhenbr [62]

It is C) 1/25
Hope this helps

7 0

3 years ago

Find the critical value of x2 based on the given information H1 >3.5 n=14 a=0.05

egoroff_w [7]

Answer:

The degrees of freedom are given by:

$df = n-1=14-1=13$

The significance level is $\alpha=0.05$ and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:

$\chi^2_{\alpha}= 22.362$

And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

Step-by-step explanation:

We have the followign system of hypothesis:

Null hypothesis: $\sigma^2 \leq 3.5$

Alternative hypothesis: $\sigma^2 >3.5$

The degrees of freedom are given by:

$df = n-1=14-1=13$

$\chi^2_{\alpha}= 22.362$

And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.

4 0

3 years ago

The area of the vegetable garden is 0.4 of the community area of 4.5 x 6.2 . What is the area of the vegetable garden?

Gala2k [10]

Answer:

11.16 units²

Step-by-step explanation:

Area of community area=4.5×6.2= 27.9 units²

Area of vegetable garden=27.9×0.4=11.16 units²

5 0

3 years ago

This is a cross section of the design of a bookshelf.

Elanso [62]

Answer:

25 in

Step-by-step explanation:

$a^{2} +b^{2} =c^{2} \\15^{2} +20^{2} =c^{2} \\225+400=c^{2} \\c^{2} =625\\c=\sqrt{625} \\c=25$

6 0

3 years ago