A sensor is used to monitor the performance of a nuclear reactor. The sensor accurately reflects the state of the reactor with a probability of .97. But with a probability of .02, it gives a false alarm (by reporting excessive radiation even though the reactor is performing normally), and with a probability of .01, it misses excessive radiation (by failing to report excessive radiation even though the reactor is performing abnormally).
What is the probability that a sensor will give an incorrect report, that is, either a false alarm or a miss?


To reduce costly shutdowns caused by false alarms, management introduces a second completely independent sensor, and the reactor is shut down only when both sensors report excessive radiation. (According to this perspective, solitary reports of excessive radiation should be viewed as false alarms and ignored, since both sensors provide accurate information much of the time.) What is the new probability that the reactor will be shut down because of simultaneous false alarms by both the first and second sensors?


Being more concerned about failures to detect excessive radiation, someone who lives near the nuclear reactor proposes an entirely different strategy: Shut down the reactor whenever either sensor reports excessive radiation. (According to this point of view, even a solitary report of excessive radiation should trigger a shutdown, since a failure to detect excessive radiation is potentially catastrophic.) If this policy were adopted, what is the new probability that excessive radiation will be missed simultaneously by both the first and second sensors?

The rule for (f - g)(x) is (f - g)(x) = 2x² - 11x - 3 and the value of (f - g)(-2) is 27

From the question, we have the following parameters that can be used in our computation:

f(x) = 2x² - 3x + 4

g(x) = 8x + 7

The rule for (f - g)(x) is calculated as

(f - g)(x) = f(x) - g(x)

Substitute the known values in the above equation, so, we have the following representation

(f - g)(x) = 2x² - 3x + 4 - 8x - 7

So, we have

(f - g)(x) = 2x² - 11x - 3

Here, we have

x = -2

Substitute the known values in the (f - g)(x) = 2x² - 11x - 3, so, we have the following representation

(f - g)(-2) = 2(-2)² - 11(-2) - 3

Evaluate

(f - g)(-2) = 27

Hence, the value of (f - g)(-2) is 27

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The surface area of the cylinder is 133 square meters.

The formula for the surface area of a cylinder is given by:

Surface Area =  2πrh + 2πr²

Given that the radius (r) is 2.3 meters and the height (h) is 6.9 meters, we can substitute these values into the formula:

Surface Area =2 x 3.14 x 2.3 x 6.9 + 2 x 3.14 x 5.29

= 2 x 3.14 x 15.87 + 33.925

= 132.8848 square meter.

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Answer: B 133

Step-by-step explanation:

The test statistic is given as follows:

t = 2.52.

We have the standard deviation for the sample, thus, the t-distribution is used. The test statistic is given by the equation presented as follows:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

In which:

The parameters for this problem are given as follows:

[tex]\overline{x} = 0.3, \mu = 0, s = 0.8, n = 45[/tex]

Hence the test statistic is given as follows:

[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]

[tex]t = \frac{0.3 - 0}{\frac{0.8}{\sqrt{45}}}[/tex]

t = 2.52.

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The value of y is 4.4.

Let's go through the steps to solve for y:

Distributive property:

[tex]1/5y + 2 - 4/5 = 1/2y - 1 + 1/10y[/tex]

Combine like terms:

[tex]1/5y + 2 - 4/5 = 1/2y - 1 + 1/10y[/tex]

Simplify the equation by getting rid of fractions. To do this, we can multiply every term by the least common denominator (LCD) of 10:

[tex]10 * (1/5y + 6/5) = 10 * (3/5y - 1 + 1/10y)[/tex]

Simplifying further:

[tex]2y + 12 = 6y - 10 + y[/tex]

Now, let's combine like terms again:

[tex]2y + 12 = 7y - 10[/tex]

Next, let's isolate the variable y. Subtract 2y from both sides and add 10 to both sides:

[tex]12 + 10 = 7y - 2y[/tex]

Simplifying:

22 = 5y

Finally, divide both sides by 5 to solve for y:

y = 22/5

Note: It's important to check our solution by substituting y = 4.4 back into the original equation to ensure it satisfies the equation.

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Answer:

11/2

Step-by-step explanation:

11/5 = 2/5y

11 = 2y

y = 11/2

To determine the optimal number of matted and unmatted pictures to maximize the company's profit, we can set up a linear programming problem.

Let's denote:

- x: the number of matted pictures

- y: the number of unmatted pictures

The objective is to maximize the profit, which can be expressed as:

Profit = 40x + 35y

We need to consider the following constraints:

1) The number of pictures completed each day cannot exceed 36:

x + y ≤ 36

2) The total man-hours of labor cannot exceed 80:

4x + 2y ≤ 80

3) The number of pictures cannot be negative:

x, y ≥ 0

Now we can solve this linear programming problem to find the optimal values for x and y.

First, let's graph the feasible region defined by the constraints:

```

x + y ≤ 36

4x + 2y ≤ 80

x, y ≥ 0

```

The feasible region is the area of the graph that satisfies all the constraints.

Next, we need to evaluate the objective function (Profit = 40x + 35y) at the vertices of the feasible region to find the maximum profit.

We can use different methods such as the corner-point method or the simplex method to determine the vertices and evaluate the profit at each vertex.

Thus, once we find the vertex that yields the maximum profit, we will have the optimal values for x and y.

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Answer:

Impossible

Step-by-step explanation: if a cube is number from 1-6 theirs no chance of getting a number less than 1.

259.25π in² is the surface area of the cone

The surface area of a cone can be calculated using the formula SA = πr² + πrl

where r is the radius and l is the slant height.

Given that the diameter is 17 inches, the radius (r) is half of the diameter, which is 17/2 = 8.5 inches.

The slant height (l) is given as 22 inches.

Substituting these values into the formula:

Surface Area = π(8.5)² + π(8.5)(22)

= 72.25π + 187π

= 259.25π

Therefore, the surface area of the cone is 259.25π in²

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Answer:

Step-by-step explanation:

I'm sorry, but I cannot answer your question without a visual representation or description of the rectangular prism. Please provide more information or a picture so that I can assist you accurately.

Answer:

72 cm 2?? THERE Isn't anything bellow I am sorry?

Step-by-step explanation:

The bisector of angle RQP is angle PQT and angle RQT, both angles are equal and their sum is equal to angle RQP.

Angle bisector or a bisector angle is a type of angle obtained after dividing the initial angle into two equal parts.

The bisected angle can be obtained using a pair of compass and a pencil attached to it.

To bisect the given angle RQP; we will take the following steps;

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Sorry for bad handwriting

if i was helpful Brainliests my answer ^_^

The functions have the following

Domain: (-∞, -1) ∪ (-1, ∞)

Range: (-∞, -∞) excluding -5

Vertical Asymptote: x = -1

Horizontal Asymptote: y = -5

We have,

Domain:

The domain of a function refers to the set of all possible input values (x) for which the function is defined.

In this case, the function f(x) is defined for all real numbers except when the denominator (x + 1) is equal to zero.

The domain is all real numbers except x = -1.

So, the domain is (-∞, -1) ∪ (-1, ∞).

Range:

The range of a function refers to the set of all possible output values (y) that the function can produce.

In this case, we can observe that as x approaches -1 from either side, the function approaches negative infinity.

The range is (-∞, -∞) excluding -5.

Vertical Asymptote:

A vertical asymptote occurs when the function approaches infinity or negative infinity as x approaches a certain value.

In this case, the vertical asymptote occurs when the denominator (x + 1) is equal to zero, which is x = -1.

Horizontal Asymptote:

To determine the horizontal asymptote, we need to examine the behavior of the function as x approaches positive or negative infinity.

As x approaches positive or negative infinity, the term 1/(x + 1) becomes negligible compared to -5.

The horizontal asymptote is y = -5.

Thus,

The functions have the following

Domain: (-∞, -1) ∪ (-1, ∞)

Range: (-∞, -∞) excluding -5

Vertical Asymptote: x = -1

Horizontal Asymptote: y = -5

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The required surface area of the larger solid is approximately 147 mm². Option A is correct.

We know that,

The surface area of any form is the area of the shape that is fronted.

The surface area of a 3D object is the amount of area covering the outside.

Let's say the surface area of the bigger solid S.

Since the two solids are similar, their volumes have a ratio of (side length)³.

Let's say the ratio of the side lengths of the larger to the smaller solid as k. Then,

⇒ k³ (540 mm³) = 857.5 mm³

Simplifying the above equation, we get:

⇒ k = 7/6

So, the larger solid is about 7/6=1.183 times bigger than the smaller solid in terms of side length.

Since the surface area has a ratio of (side length)²,

we can find the surface area of the larger solid by:

⇒ (1.83²)(108 mm³)

≈ 174 mm³

Therefore, the surface area of the larger solid is approximately 147 mm².

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Answer:

Step-by-step explanation:

x° + 2x° + 9° = 180°

3x° + 9° = 180°

x° + 3° = 60°

x = 57°

The circumference of the circle with the measure of diameter as 28 cm is 87.92 cm.

Given a circle.

Also given that,

Diameter of the circle = 28 cm

We know that, radius of a circle is half the measure of the diameter of the circle.

Radius of the circle = 28 / 2 = 14 cm

The formula to find the circumference of the circle is,

Circumference = 2 πr

Here r is the radius of the circle.

Substituting the given,

Circumference = 2 π (14)

                         = 28π

                         = 28 × 3.14

                         = 87.92 cm

Hence the circumference is 87.92 cm.

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The amplitude and the period of the function f(x) = cos(5θ) are 1 and 2π/5

From the question, we have the following parameters that can be used in our computation:

f(x) = cos(5θ)

A sinusoidal function is represented as

f(x) = Acos(B(x + C)) + D

Where

So, we have

A = 1

Period = 2π/5

Evaluate

A = 1

Period = 2π/5

Hence, the amplitude is 1 and the period is 2π/5

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The time that the ball traveled is given as follows:

t = 2.5 seconds.

The quadratic function modeling the ball's height after t seconds is given as follows:

H(t) = -16t² + 40t.

To obtain the time traveled by the height, we must obtain the roots of the quadratic function, as follows:

-16t² + 40t = 0.

16t² - 40t = 0

t(16t - 40) = 0.

Hence the roots are:

Which means that the time traveled by the ball is given as follows:

2.5 - 0 = 2.5 seconds.

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Answer:

$2.25

Step-by-step explanation:

Red: $2

Blue: $6

Green: $6 + $5 (original cost of game) = $11

Yellow: $20

The total number of slots on the spinner is 4, with one slot for each color. Since the spinner can land on any color with equal probability, the probability of it landing on each color is 1/4 or 0.25.

Therefore, the expected value of the game is:

(0.25 x $2) + (0.25 x $6) + (0.25 x $11) + (0.25 x $20) - $5 = $2.25

The volume of the oblique rectangular prism that is given above would be = 212.4

To calculate the volume of the oblique rectangular prism, the formula for the volume of a prism should be used which is given below. That is;

Volume of prism= L×w×h

where;

Length = 9

width = 4

height = ?

But the height of the oblique rectangular prism can be calculated using the sine formula;

That is;

height = 8× 0.7314

= 5.9

Therefore volume = 9×4×5.9 = 212.4

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Answer: 126 feet

Step-by-step explanation: Convert yards into feet. IF we are given different units then you must convert it.

To convert yards into feet, MULTIPLY by 3

29 yards * 3= 87 feet

13 yards * 3= 39 feet

Now, key word= THROWS IN ALL= addition

87 + 39 is 126

The phase shift of the trigonometric function is given as follows:

D) 90º to the left.

The standard definition of the sine function is given as follows:

y = Asin(B(x - C)) + D.

For the cosine function, we have the same definition, we only use cos() instead of sin().

For which the parameters are given as follows:

For this problem, we have that the phase shift is of C = 90. As we are adding inside of the domain of the function, the phase shift is to the left.

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The three statements about the measures of center that are true include the following:

A. The mean for Group A is less than the mean for Group B.

B. The median for Group A is less than the median for Group B.

C. The mode for Group A is less than the mode for Group B.

In Mathematics and Geometry, the mean for this set of data can be calculated by using the following formula:

Mean = [F(x)]/n

Group A

Mean for Group A = [(1 × 5) + (2 × 4) + (3 × 1)]/(5 + 4 + 1)

Mean for Group A = (5 + 8 + 3)/10

Mean for Group A = 16/10

Mean for Group A = 1.6

Mode for Group A = 1

Median for Group A = (1 + 2)/2

Median for Group A = 3/2

Median for Group A = 1.5

Group B

Mean for Group A = [(1 × 3) + (2 × 2) + (3 × 4) + (5 × 1)]/(3 + 2 + 4 + 1)

Mean for Group A = (3 + 4 + 12 + 5)/10

Mean for Group A = 24/10

Mean for Group A = 2.4

Mode for Group B = 3

Median for Group B = (2 + 3)/2

Median for Group B = 5/2

Median for Group B = 2.5

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Answer: A,B,C

Step-by-step explanation:

The width of the rectangle is 13 cm and the dimension is 26 cm x 13 cm

Given data ,

Let the length be L and width be W

Now , the width is 1/2 of the length, so we can write:

W = (1/2)L

The area of a rectangle is given by the formula:

Area = Length x Width

Given that the area is 338 square centimeters, we can write:

338 = L × W

Substituting W with (1/2)L, we have:

338 = L × (1/2)L

To solve this equation, we can multiply both sides by 2 to eliminate the fraction:

676 = L²

Taking the square root of both sides, we find:

L = √676

L = 26

So the length of the rectangle is 26 centimeters.

Substituting this value back into the equation for the width, we have:

W = (1/2)L

W = (1/2)(26)

W = 13

Hence , the dimensions of the rectangle are length = 26 centimeters and width = 13 centimeters

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The pairs of coordinates arranged from least to greatest based on the differences between the points are:

(-1,-2) and (1,-4)

(4,1) and (2,2)

(-5,2) and (-3,-2)

(3,-4) and (-2,1)

(5,-2) and (-1,-1)

Let's calculate the differences and arrange the pairs accordingly:

(4,1) and (2,2):

Difference in x-coordinates: 4 - 2 = 2

Difference in y-coordinates: 1 - 2 = -1

(-5,2) and (-3,-2):

Difference in x-coordinates: -5 - (-3) = -2

Difference in y-coordinates: 2 - (-2) = 4

(3,-4) and (-2,1):

Difference in x-coordinates: 3 - (-2) = 5

Difference in y-coordinates: -4 - 1 = -5

(-1,-2) and (1,-4):

Difference in x-coordinates: -1 - 1 = -2

Difference in y-coordinates: -2 - (-4) = 2

(5,-2) and (-1,-1):

Difference in x-coordinates: 5 - (-1) = 6

Difference in y-coordinates: -2 - (-1) = -1

Now let's arrange them in order from least to greatest based on the differences in the points:

(3,-4) and (-2,1) (difference: 5)

(-1,-2) and (1,-4) (difference: 2)

(4,1) and (2,2) (difference: 2)

(-5,2) and (-3,-2) (difference: 4)

(5,-2) and (-1,-1) (difference: 6)

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Answer:

4/15 square unit (0.2667 rounded)

Step-by-step explanation:

The whole square is one square as

((1/10) x 10 (columns)) multiplied by ((1/3) x 3 (rows)) = 1 multiplied by 1 = 1.

So, with that, the area of the striped rectangles should be:

(1/10) x 4 (columns in the striped area of rects) multiplied by (1/3) x 2 (rows in the striped area of rects) = 0.4 multiplied by 2/3 = 4/15 square unit.

Answer:

hello

the answer is:

Sin B = CA/AB ----> Sin 65° = 5/AB ----> 0.906 = 5/AB

----> AB = 5.51

There are 125 stickers did Sally have to start.

We have to given that,

Sally had 52 more stickers than Joe after Joe gave 1/5 of his stickers to her.

Let us assume that,

Joe had x stickers to start with.

Since, After Joe gave 1/5 of his stickers to her.

He have 4/5 of his original amount left.

That is, 4/5x

Since, Sally had 52 more stickers than Joe

Hence, We get;

4/5x + 52 = 1/5x + y  .. (i)

where y is the number of stickers Sally had to start with.

Here, they both had a total of 260 stickers,

Hence,

x + y =260  .. (ii)

From (i) and (ii);

y = 125

Thus, There are 125 stickers did Sally have to start.

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Answer:

5/12

Step-by-step explanation:

Since Julia has 12 different flowers and we know she has 5 roses

we can turn it into a fraction which will be 5/12.'

The maximum error of the midpoint approximation is 0.55.

To estimate the maximum error, we can consider the worst-case scenario by assuming that the second derivative is at its maximum value throughout the interval [11, 31]. In this case, we can use the largest possible value for M.

To find the maximum error of the midpoint approximation, we need to determine the width of the interval and divide it by 2.

Width of the interval = upper bound - lower bound = 10.5 - 9.4 = 1.1

Maximum error (E) = (Width of the interval) / 2 = 1.1 / 2 = 0.55

Therefore, the maximum error of the midpoint approximation is 0.55.

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