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3 years ago

Which pair of figures has the same number of faces as vertices?

Mathematics

2 answers:

HACTEHA [7]3 years ago

7 0

Answer:

Option 3 is correct.

( rectangular pyramid and triangular pyramid )

Step-by-step explanation:

The number of faces and vertices in each of the given figures are as follows:

Triangular prism has 5 faces and 6 vertices.

Triangular pyramid has 4 faces and 4 vertices.

Rectangular Prism has 6 faces and 8 vertices.

and Rectangular pyramid has 5 faces and 5 vertices.

Hence the correct statement among the given options is:

i.e. the figures which have equal number of faces as vertices are:

Rectangular pyramid and Triangular Pyramid.

Hence option 3 is correct.

Sophie [7]3 years ago

5 0

Every Pyramid has the same number of faces as vertices, you can see it is only option C where both options are pyramid. so, it is correct

In short, Your Answer would be Option C

Hope this helps!

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On Texas Avenue between University Drive and George Bush Drive, accidents occur according to a Poisson process at a rate of thre

Zarrin [17]

Answer:

(a) The probability is 0.6514

(b) The probability is 0.7769

Step-by-step explanation:

If the number of accidents occur according to a poisson process, the probability that x accidents occurs on a given day is:

$P(x)=\frac{e^{-at}*(at)^{x} }{x!}$

Where a is the mean number of accidents per day and t is the number of days.

So, for part (a), a is equal to 3/7 and t is equal to 1 day, because there is a rate of 3 accidents every 7 days.

Then, the probability that a given day has no accidents is calculated as:

$P(x)=\frac{e^{-3/7}*(3/7)^{x}}{x!}$

$P(0)=\frac{e^{-3/7}*(3/7)^{0}}{0!}=0.6514$

On the other hand the probability that February has at least one accident with a personal injury is calculated as:

P(x≥1)=1 - P(0)

Where P(0) is calculated as:

$P(x)=\frac{e^{-at}*(at)^{x} }{x!}$

Where a is equivalent to (3/7)(1/8) because that is the mean number of accidents with personal injury per day, and t is equal to 28 because 4 weeks has 28 days, so:

$P(x)=\frac{e^{-(3/7)(1/8)(28)}*((3/7)(1/8)(28))^{x}}{x!}$

$P(0)=\frac{e^{-(3/7)(1/8)(28)}*((3/7)(1/8)(28))^{0}}{0!}=0.2231$

Finally, P(x≥1) is:

P(x≥1) = 1 - 0.2231 = 0.7769

3 0

3 years ago

- Why is R2 important? in multiple regression

andriy [413]

Answer:

R-squared is a statistical measure of how close the data are to the fitted regression line.

Step-by-step explanation:

It is also known as the coefficient of determination, or the coefficient of multiple determination for multiple regression. ... 100% indicates that the model explains all the variability of the response data around its mean.

4 0

3 years ago

At the start of 2014 Mike's car was worth £12000.

chubhunter [2.5K]

We have to calculate the value of the car after 3 years at the start of 2017.
= 1200(1-0.30)^{3}
= 12000 × 0.343
= $4,116

5 0

3 years ago

Read 2 more answers

About when does the softball reach its maximum height?

Masja [62]

Based on the given graph, the time when the softball reaches its maximum height is about 1.8 seconds.

<h3>When is the softball at it highest?</h3>

The softball is at its maximum height at the point where the curve begins to go back down.

This means the maximum height is 50 feet.

The time when this softball reaches this height is between 1 and 2 seconds at 0.8.

The time the softball reaches its maximum height is therefore 1.8 seconds.

Find out more on maximum height at brainly.com/question/23144757

#SPJ1

7 0

2 years ago

1. 2 months ago you had 3 mice, you now have 18.

Sphinxa [80]

Answer:

k= 15 every two months

Step-by-step explanation: so you started with 3 and you gained fifth teen in two months so every two months you will gain fifth teen mice.

7 0

3 years ago