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3 years ago

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A triangular right prism is cut perpendicular to the base.What is the shape of the cross section?

1 answer:

maks197457 [2]3 years ago

7 0

When a cross section is cut from a triangular right prism which is perpendicular to the base, the shape would be a rectangle with the length equal to height of the prism and the width equal to x which is to be determined still since it would depend at what part the area was cut.

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Natalija [7]

Answer:

Option 2 and Option 5

Step-by-step explanation:

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Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (pH lev

stiv31 [10]

Answer:

The mean and standard deviation of the corrected pH measurements are 6.63 and 3.8025 respectively.

Step-by-step explanation:

We can correct the values of the mean and standard deviation using the properties of the mean and the variance.

To the original value X we have to add 0.2 and multiply then by 1.3 to calculate the new and corrected value Y:

$Y=1.3(X+0.2)$

The mean and standard deviation of the original value X are 4.9 and 1.5 respectively.

Then, we can apply the properties of the mean as:

$E(Y)=E(1.3(X+0.2))=1.3E(X+0.2)=1.3E(X)+1.3*0.2\\\\E(Y)=1.3E(X)+0.26\\\\E(Y)=1.3*4.9+0.26=6.37+0.26=6.63$

For the standard deviation, we apply the properties of variance:

$V(Y)=V(1.3(X+0.2))\\\\V(Y)=1.3^2\cdot V(X+0.2)\\\\V(Y)=1.69\cdot V(X)\\\\V(Y)=1.69\cdot 1.5^2=1.69\cdot 2.25=3.8025$

The properties that have been applied are:

$1.\,E(aX)=aE(X)\\\\ 2.\,E(X+b)=E(X)+b\\\\3.\,V(aX)=a^2V(X)\\\\4.\,V(X+b)=V(X)+0$

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3 years ago

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lara31 [8.8K]

The answer to this question is x ≤ 30

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Eddi Din [679]

Im not sure what you are asking is there another part to the question.

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There are 8 oranges, 5 apples, and 6 bananas In the fruit basket.

scoundrel [369]

Step-by-step explanation:

all of them are correct

there are 5 apples and 6 bananas

there are 6 bananas and 5 apples

5 apples plus 6 bananas=11

8 oranges+5 apples+6 bananas=19

so the ratio is 11:19

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