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3 years ago

In circle O, ST is a diameter. What must be the value of x?

Mathematics

2 answers:

adell [148]3 years ago

7 0

Answer:

Step-by-step explanation:

leonid [27]3 years ago

4 0

Answer:

The answer is 25.

Step-by-step explanation:

The value of x is 25. 25 25 25. 25 is your answer.

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(3 points) Buchtal, a manufacturer of ceramic tiles, reports on average 3.1 job-related accidents per year. Accident categories

Strike441 [17]

Answer:

0.8743 = 87.43% probability that more than one accident occurs per year

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.

Buchtal, a manufacturer of ceramic tiles, reports on average 3.1 job-related accidents per year.

This means that $\mu = 3.1$

What is the probability that more than one accident occurs per year?

This is:

$P(X > 1) = 1 - P(X \leq 1)$

In which

$P(X \leq 1) = P(X = 0) + P(X = 1)$

Then

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

$P(X = 0) = \frac{e^{-3.6}*(3.6)^{0}}{(0)!} = 0.0273$

$P(X = 1) = \frac{e^{-3.6}*(3.6)^{1}}{(1)!} = 0.0984$

$P(X \leq 1) = P(X = 0) + P(X = 1) = 0.0273 + 0.0984 = 0.1257$

$P(X > 1) = 1 - P(X \leq 1) = 1 - 0.1257 = 0.8743$

0.8743 = 87.43% probability that more than one accident occurs per year

8 0

3 years ago

A number,y,is 2 more than 3 times another number,x, the sum of the 2 numbers is 26. What are the two numbers?

Ivanshal [37]

Y = 2 + 3x
x + y = 26

Substitute:
x + (2 + 3x) = 26
4x + 2 = 26
4x = 24
x = 6

6 + y = 26
y = 20

3 0

3 years ago

What is 7/8<br> expressed as a percent?<br> Enter your answer in the box.

ASHA 777 [7]

The answer is 87.5% You can check it everywhere. :)

7 0

4 years ago

Please help! Solve for a.

Marat540 [252]

What am I solving? Like what is the question?

3 0

3 years ago

Given that aₙ = (-2) (5)ⁿ⁻1 for a geometric sequence, determine the common ratio:

patriot [66]

Answer:

Step-by-step explanation:

The nth term of the geometric sequence is

$a_n=(-2)(5)^{n-1}$

In general the nth term of a geometric sequence is

$a_n=a_1(r)^{n-1}$

By comparism;

$r=5$ is the common ratio of the sequence.

$a_1=(-2)(5)^{1-1}=-2$

$a_2=(-2)(5)^{2-1}=-10$

Common ratio is

$r=\frac{-10}{-2}=5$

4 0

3 years ago