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Anna007 [38]
3 years ago
10

Help will mark Brainly

Mathematics
1 answer:
o-na [289]3 years ago
6 0

Answer:

V ≈ 8.67x10^7 ft^3

Step-by-step explanation:

We know that the volume of a pyramid is V= (lwh)/3

Since it is a square pyramid, it means that the length and the width are the same:

Length=755.9 feet

Width=755.9 feet

Height=455.4 feet

So, the volume is :

V = [(755.9)(755.9)(455.4)]/3

V = 86736214.158 ft^3

V ≈ 8.67x10^7 ft^3

Hope this helps!

Mark brainliest if u think I helped! Would really appreciate!

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Answer:

(A) It is less than the contribution predicted by the regression line.

Step-by-step explanation:

The residual is the subtraction of the observed value by the predicted value.

So, if James has a negative residual, it means that his contribution is less than what was expected by the regression line.

The correct answer is:

(A) It is less than the contribution predicted by the regression line.

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4 years ago
Southwest Co-op produces bags of fertilizer, and it is concerned about impurity content. It is believed that the weights of impu
Harman [31]

Answer:

a) 0.216

b) 0.1587

c) 0.369

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 12.2 grams

Standard Deviation, σ = 2.8 grams

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Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

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Calculation the value from standard normal z table, we have,  

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b) P(contains more than 15 grams of impurities)

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Calculation the value from standard normal z table, we have,  

P(x > 610) = 1 - 0.8413 = 0.1587 = 15.87\%

c) P(contains between 12 and 15 grams of impurities)

P(12 \leq x \leq 15) = P(\displaystyle\frac{12 - 12.2}{2.8} \leq z \leq \displaystyle\frac{15-12.2}{2.8}) \\\\= P(-0.0714 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -0.0714)\\= 0.841 - 0.472 = 0.369 = 36.9\%

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4 years ago
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harkovskaia [24]

Answer:

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Answer: it is the one with c

Step-by-step explanation:

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