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3 years ago

7k + 5 – 2 = 7k + 3 0 Anyone sorry for so many i just need help

Mathematics

1 answer:

mamaluj [8]3 years ago

6 0

Answer:

K=27

Step-by-step explanation:

the answer is 27

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Which expression simplifies to 4 √13 √208 √17 √29 √52

arsen [322]

Answer:

√208

Step-by-step explanation:

Step 1: Convert 4 to √

4² = 16

4 = √16

Step 2: Multiply radicals

√16(√13) = √208

7 0

3 years ago

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What is the linear factor

Effectus [21]

Answer:

The linear factors of a polynomial are the first-degree equations that are the building blocks of more complex and higher-order polynomials

Step-by-step explanation:

4 0

3 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

Can someone help with this question?

ivann1987 [24]

You solve an expression for a variable if that variable sits alone on one side of the equation, and everything else is on the other side.

So, our goal is to leave $h$ alone on the right hand side, and move everything else to the left.

So, we start with

$V = \dfrac{1}{3}s^2h$

We multiply both sides by 3:

$3V = s^2h$

We divide both sides by $s^2$

$\dfrac{3V}{s^2} = h$

To compute the required height, simply plug in the values:

$\dfrac{3\cdot 400}{10^2} = \dfrac{3\cdot 400}{100} = 3\cdot 4 = 12$

3 0

3 years ago

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Help with question # 16. Please and thank you.

Korolek [52]

Okay
now draw a right angled triangle
labeling the hypotenus 57ft
the opposite x and the adjacent 5.5 ft and the angle in the right angle triangle is 55 °.
now solve
sin 55°=x/5.5
0.8192(the sin of 55)= x/5.5
cross multiply
X=4.51

5 0

3 years ago