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Ad libitum [116K]
3 years ago
12

Sharon solved this problem.

Mathematics
1 answer:
Darya [45]3 years ago
3 0
I'm thinking c because 1500 would cover the 1436 pounds of hay that you need and you would multiple by 2 and not divide
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Solve for the variable 4/2 = 9/x<br> A x = 2/9 b x=4 C =4.5 D x= 18
Lesechka [4]

Answer:

\frac{4}{2}  =  \frac{9}{x}  \\

perform cross multiplication:

(4 \times x) = 9 \times 2 \\ 4x = 18 \\ → \: { \tt{x = 4.5}}

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Express each product in the simplest form.
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4 is probably the answer. Hope this helps. :)
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Heights​ (cm) and weights​ (kg) are measured for 100 randomly selected adult​ males, and range from heights of 133 to 193 cm and
yawa3891 [41]

Answer:

The weight of an adult male who is 172 cm tall is 89.36 kg.

Step-by-step explanation:

The regression equation representing the relationship between height and weight of a person is:

\hat y=-105+1.13x

Here

<em>y</em> = weight of a person

<em>x</em> = height of a person

The information provided is:

\bar x=167.90\ cm\\\bar y=81.47\ kg\\r (X, Y) = 0.228\\p-value=0.023\\\alpha =0.05

The hypothesis to test the significance of the correlation between height and weight is:

<em>H₀</em>: There is no relationship between the height and weight, i.e. <em>ρ</em> = 0.

<em>Hₐ</em>: There is a relationship between the height and weight, i.e. <em>ρ </em>≠ 0.

Decision rule:

If the <em>p</em>-value of the test is less than the significance level, then the null hypothesis will be rejected and vice-versa.

According to information provided:

<em>p</em>-value = 0.023 < <em>α</em> = 0.05

The null hypothesis was rejected at 5% level of significance.

Thus, concluding that there is a relationship between the height and weight.

Compute the weight of an adult male with height, <em>x</em> = 172 cm as follows:

\hat y=-105+1.13x

  =-105+(1.13\times 172)\\=-105+194.36\\=89.36

Thus, the weight of an adult male who is 172 cm tall is 89.36 kg.

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Step-by-step explanation:

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If 400 bricks measuring 81" by 31" are required to build a wall 42 ft. high, how long is the wall​
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Idek lol but yeah have a good day
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