3 facts about quadrilaterals

2 answers:

8 0

•A 4 sided shape with. A 4 sided shape with 2 parallel sides.

• all right angles are. all right angles are 90 degress.

• All the angles add up to 360 degrees.

HACTEHA [7]3 years ago

6 0

Answer:

A 4 sided shape with. A 4 sided shape with 2 parallel sides.

all right angles are. all right angles are 90 degress.

All the angles add up to 360 degrees. All the angles add up to 360 degrees.

Step-by-step explanation:

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More help please !!!

butalik [34]

Answer:

(-2, 1).

Step-by-step explanation:

The x coordinates are -1 and -3 and the y coordinates are 4 and -2.

So the midpoint is (-1 + -3)/2, ( 4 + -2) / 2

= (-4/2, 2/2)

= (-2, 1).

4 0

3 years ago

Read 2 more answers

A Geiger counter counts the number of alpha particles from radioactive material. Over a long period of time, an average of 14 pa

UkoKoshka [18]

Answer:

0.2081 = 20.81% probability that at least one particle arrives in a particular one second period.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

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

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Over a long period of time, an average of 14 particles per minute occurs. Assume the arrival of particles at the counter follows a Poisson distribution. Find the probability that at least one particle arrives in a particular one second period.

Each minute has 60 seconds, so $\mu = \frac{14}{60} = 0.2333$