3 years ago

Find the volume of a rectangular pyramid with the following dimensions.

Mathematics

1 answer:

PolarNik [594]3 years ago

3 0

Answer:

Step-by-step explanation:

like my answer please gimme the brain

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The diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4 inches and a standard dev

leva [86]

Answer:

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

Step-by-step explanation:

In this problem we have a normal ditribution with mean of 4.0 in and standard deviation of 1.5 in.

The proportion of the trees that are expected to have diameters greater than 5 inches is equal to the probability of having a tree greater than 5 inches.

We can calculate the z value for x=5 in and then look up in a standard normal distribution table the probability of z.

$z=\frac{x-\mu}{\sigma}=\frac{5-4}{1.5}=0.67$

$P(x>5)=P(z>0.67)=0.25$

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

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Step-by-step explanation:

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3 years ago

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I'm not really good at math, but i would appreciate it if i can get some help with this math problem. 2y^3-4x^2-4-1+3x^2-3y^3-y^

SOVA2 [1]

Answer:

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Step-by-step explanation:

Just simplify everything. I recomend putting them in seperate groups. By exponent. Don't forget the signs, they are very important.

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