All categories

3 years ago

A circle is centered on point B. Points A, C and D lie on it's circumference.

Mathematics

2 answers:

kvasek [131]3 years ago

8 0

Answer:

Step-by-step explanation:

i just did this one

IrinaVladis [17]3 years ago

3 0

The measure of the angle ADC is 20°

<u>Explanation:</u>

Given:

∠ABC = 40°

∠ADC = ?

We know:

Angle subtended at the center is twice the angle subtended at the circumference.

Thus,

∠ABC = 2 x ∠ADC

On substituting the value we get:

40° = 2 X ∠ADC

∠ADC = 20°

Therefore, the measure of the angle ADC is 20°

You might be interested in

Grasshoppers are distributed at random in a large field according to a Poisson process with parameter a 5 2 per square yard. How

HACTEHA [7]

In this question, the Poisson distribution is used.

Poisson distribution:

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.

Parameter of 5.2 per square yard:

This means that $\mu = 5.2r$ , in which r is the radius.

How large should the radius R of a circular sampling region be taken so that the probability of finding at least one in the region equals 0.99?

We want:

$P(X \geq 1) = 1 - P(X = 0) = 0.99$

Thus:

$P(X = 0) = 1 - 0.99 = 0.01$

We have that:

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

$P(X = 0) = \frac{e^{-5.2r}*(5.2r)^{0}}{(0)!} = e^{-5.2r}$

Then

$e^{-5.2r} = 0.01$

$\ln{e^{-5.2r}} = \ln{0.01}$

$-5.2r = \ln{0.01}$

$r = -\frac{\ln{0.01}}{5.2}$

$r = 0.89$

Thus, the radius should be of at least 0.89.

Another example of a Poisson distribution is found at brainly.com/question/24098004

3 0

3 years ago

HELP ASAPPPP!!!BRAINLEST WILL BE GIVEN!!!

liraira [26]

Answer:

30 days

Step-by-step explanation:

The common multiples of 15 and 6 are 30, 60, 90 etc and because it increases by 30 each time we can find out that he will play both football and basketball together in thirty days!

8 0

3 years ago

Please help with this question!!

barxatty [35]

Answer:

-29/20

Step-by-step explanation:

The cosecant function is the inverse of the sine function. Both sine and cosecant are odd functions, meaning csc(-x) = -csc(x) = -1/sin(x).

csc(-θ) = -1/sin(θ) = -1/(20/29) = -29/20

6 0

3 years ago

Find the unknown side length, x. Write your answer in simplest radical form.

velikii [3]

The answer should be 16√5

8 0

3 years ago

SISTEMA DE ECUACIONES

Zina [86]

Step-by-step explanation:

5 0

3 years ago