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3 years ago

What is the surface area

Mathematics

2 answers:

Musya8 [376]3 years ago

5 0

Answer:it is the yellow part

Step-by-step explanation:

because the yellow face is touching the floor

denis-greek [22]3 years ago

3 0

Answer:

Surface area: A=496

Volume: V=640

Step-by-step explanation:

Shape: Rectangle Prism

Solved for volume

Formula for volume: L*W*H

Formula for surface area: 2(wl+hl+hw)

To calculate the volume

1: First calculate the width, height, and the length. Which is Length: 16ft Width: 8ft Height: 5ft.

Answer for volume: V=640

To calculate the surface area:

1: Use the formula wl+hl+hw. So plus the length, width and the height which is. Height: ft Width: 8ft Length: 16ft.

Answer for surface area: A=496

Hope this helps.

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2 years ago

Suppose we roll a fair six-sided die and sum the values obtained on each roll, stopping once our sum exceeds 307. Approximate th

SOVA2 [1]

Answer:

There is a probability of P=0.94 that at least 81 rolls are needed to get the sum of 307.

Step-by-step explanation:

The roll of a six-sided die sum has this parameters:

Mean: 3.5

Standard deviation: 1.7

If the die is rolled 81 times, the distribution of the sum of the 81 rolls will have the following parameters:

$\mu=n*M=81*3.5=283.5\\\\\sigma=\sqrt{n}s=\sqrt{81}*1.7=9*1.7=15.3$

Note: the variance of the sum of random variables is equal to the sum of the variance of the individual variables.

Then, we can calculate the probabilties that the sum of 81 rolls is lower than 307.

$z=\frac{x-\mu}{\sigma}=\frac{307-283.5}{15.3}= \frac{23.5}{15.3}= 1.536\\\\\\P(x$

There is 94% of chances that the sum of 81 rolls is lower than 307, so there is a probability of P=0.94 that at least 81 rolls are needed to get the sum of 307.

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3 years ago