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3 years ago

I AM GONNA POST MORE QUESTIONS!!!!!! I AM SO STRESSED I HATE TESTS

Mathematics

2 answers:

Troyanec [42]3 years ago

7 0

Answer:

the second statement is true

Step-by-step explanation:

Reil [10]3 years ago

7 0

Answer:

The second statement is true I think

Step-by-step explanation:

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The area of a circle is given by πr2, where r is the radius of the circle. If we use rounding to the nearest whole number, what

Makovka662 [10]

Answer:

75cm^2

Step-by-step explanation:

Check attachment

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3 years ago

Use distributive property to rewrite 3×546

sergij07 [2.7K]

Answer:

1638

Step-by-step explanation:

3(500)+3(40)+3(6)=1500+120+18=1638

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2 years ago

S_A_V [24]

The corect answer for this question

6 0

2 years ago

The number of failures of a testing instrument from contamination particles on the product is a Poisson random variable with a m

Mazyrski [523]

Answer:

The probability that the instrument does not fail in an 8-hour shift is $P(X=0) \approx 0.8659$

The probability of at least 1 failure in a 24-hour day is $P(X\geq 1 )\approx 0.3508$

Step-by-step explanation:

The probability distribution of a Poisson random variable X representing the number of successes occurring in a given time interval or a specified region of space is given by the formula:

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

Let X be the number of failures of a testing instrument.

We know that the mean $\mu = 0.018$ failures per hour.

(a) To find the probability that the instrument does not fail in an 8-hour shift, you need to:

For an 8-hour shift, the mean is $\mu=8\cdot 0.018=0.144$

$P(X=0)=\frac{e^{-0.144}0.144^0}{0!}\\\\P(X=0) \approx 0.8659$

(b) To find the probability of at least 1 failure in a 24-hour day, you need to:

For a 24-hour day, the mean is $\mu=24\cdot 0.018=0.432$

$P(X\geq 1 )=1-P(X=0)\\\\P(X\geq 1 )=1-\frac{e^{-0.432}0.432^0}{0!}\\\\P(X\geq 1 )\approx 0.3508$

3 0

3 years ago

If m∠TRK equal 32.5°, what is m∠TSK?

MrRa [10]

The answer is whatever is equal to 32.5 hope this helped you

7 0

3 years ago