I need help with 1 over x minus 8 so like 1/x-8
Negative Exponent

The area of the associated sector is: 120π

A sector is the portion of the area of a circle surrounded by an arc and two radii.

Analysis:

Area of a sector = ∅/360 x π\(r^{2}\)

∅ = 75°

r = 24 units

Area of sector = 75/360 x π\((24)^{2}\) = 120\(\pi\) square units

In conclusion, the area of the associated sector is 120π square units

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Answer:

A

Step-by-step explanation:

I Just Took the Test.

if we are going by angle 43 degrees it would be cosine. adjavent over hypotnuse. Cos(43)=x/17. 17*cos(43)=x   x = 12.433. 12.4

Based on the provided frequency distribution, we can calculate the required percentages: Total number of organizations surveyed: 151 + 104 + 114 + 75 + 49 + 80 = 573,

a. Percentage of organizations that took fewer than 2 days, on average, to detect incidents:
(151 + 104) / 573 * 100 = 44.50%

b. Percentage of organizations that took between 2 and 31 days, on average, to detect incidents:
(114 + 75) / 573 * 100 = 32.98%

c. Percentage of organizations that took 31 or more days, on average, to detect incidents:
(49 + 80) / 573 * 100 = 22.51%

d. Based on these percentages, we can conclude the following:
- Most of the incidents are detected in less than 31 days (Option D).
- Less than 25% of the incidents are detected after 31 days or more (Option B).

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Answer:

x= -13/5

Step-by-step explanation:

Answer:

\(x = \frac{13}{-5} or \frac{-13}{5}\)

Step-by-step explanation:

Add 2 to each side to isolate the negative 5x:

11 + 2 = -5x + 2

13 = -5x

Divide both sides by -5:

\(\frac{-5x}{-5} = \frac{13}{-5}\)

\(x = \frac{13}{-5} or \frac{-13}{5}\)

Hope this helps!

The net present value (NPV) for a 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year, assuming that the firm has an opportunity cost of 15%, is $9,474.23.

NPV is a method used to determine the present value of cash flows that occur at different times.

The net present value (NPV) calculation considers both the inflows and outflows of cash in each year of the project. The NPV is then calculated by discounting each year's cash flows back to their present value using a discount rate that reflects the firm's cost of capital or opportunity cost.

A 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year has a total cash inflow of $50,000 ($2,000 × 25).

Summary: Thus, the net present value (NPV) for a 25-year project with an initial investment of $5,000 and a cash inflow of $2,000 per year, assuming that the firm has an opportunity cost of 15%, is $9,474.23.

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•Triangle 1

#Find CD first use tan formula

tan(∅) = opposite / adjuscent

tan(45) = CD / 5

CD = 5 × tan(45)

CD = 5

•Triangle 2

#Now you can find AC use Pythagoras theorem (c = AC)

a² + b² = c²

4² + 5² = c²

16 + 25 = c²

41 = c²

c = √41

c = 6.4

so, AC is 6.4

#Give me brainliest ok? im tired writing all of this

Hello there, and welcome to Brainly!

In this case, x is to be made the subject of the equation, setting x by itself.

Note the equal sign, what you do to one side, you do to the other.

Do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

~

First, subtract n from both sides of the equation:

m (-n) = n (-n) + (x/p)

m - n = x/p

Next, fully isolate the x by multiplying p to all terms on both sides of the equation:

(p) * (m - n) = (x/p) * (p)

p * (m - n) = x

Next, simplify. Distribute p to all terms within the parenthesis:

p(m - n) = x

pm - pn = x

x = pm - pn is your answer.

~

The required reflection of the points N(-3, 1), G(0, 4), B(-1, 1) across the y-axis are N(3, 1),  G(0, 4), B(1, 1) .

Point (x, y) is reflected across the x-axis as (x, -y). The y-coordinate stays the same when a point is reflected across the y-axis, but the x-coordinate is assumed to be the additive inverse.

We have,

N(-3, 1), G(0, 4), B(-1, 1)

While, find reflected points we are considering y-axis as mirror,

Then,

Reflection of point N(-3, 1) across the y-axis

⇒ N(3, 1)

Reflection of point G(0, 4) across the y-axis

⇒ G(0, 4)

Reflection of point B(-1, 1) across the y-axis

⇒ B(1, 1)

Thus, required reflected points are  N(3, 1),  G(0, 4), B(1, 1) .

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We are told that the interest is compounded continuously, therefore, we use the following formula:

Where "A" is the present value, "P" the initial value, "r" the interest rate, and "t" the time:

Now we solve for "r", first by dividing both sides by "P":

Now we take natural logarithm to both sides:

Now we divide both sides by "t":

Now we replace the given values:

Solving the operations we get:

Therefore, the interest rate is 6.3%.

The volume of the pyramid is B) 192ft

The volume of a pyramid can be calculated utilizing the condition:

V = (1/3) * base region * height...........(1)

In the case of a square pyramid, the base area is given by the condition:

base area = (edge length)²

Thus, in this issue, we have:

base area = (6 ft)² = 36 ft²

height = 16 ft (given)

Substituting these values into the condition for the volume of a pyramid ( equation (1) ), we get:

V = (1/3) * 36 ft² * 16 ft

V = 192 cubic feet

In this way, the volume of the pyramid is 192 cubic feet.

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=================================================

Explanation:

Check out the image below. I've posted the synthetic division table. The value at the very end of the bottom row is the remainder. By the remainder theorem, this is exactly the value of g(-5).

Recall the remainder theorem says: If you divide p(x) by (x-k), then the remainder is p(k). In this case, k = -5 is our test root which is the value placed in the box on the left.

As a way to check the answer, we can say

g(x) = 2x^2 + 6x + 5

g(-5) = 2(-5)^2 + 6(-5) + 5

g(-5) = 25

So the answer is confirmed.

ok

it must be the first choice associative and distributive propertives

try please

The area of a rectangle can be found by multiplying its length and width.

To find the area of rectangles with different perimeters, we need to use the formula:

Area = length x width

Possible dimensions:

Length = 5 cm, Width = 3 cm

Length = 4 cm, Width = 4 cm

Area of the first rectangle = 5 cm x 3 cm = 15 cm²

Area of the second rectangle = 4 cm x 4 cm = 16 cm²

Possible dimensions:

Length = 6 cm, Width = 4 cm

Length = 5 cm, Width = 5 cm

Area of the first rectangle = 6 cm x 4 cm = 24 cm²

Area of the second rectangle = 5 cm x 5 cm = 25 cm²

Possible dimensions:

Length = 4 cm, Width = 3 cm

Area of the rectangle = 4 cm x 3 cm = 12 cm²

Therefore, the areas of the possible rectangles with perimeters 16cm, 20cm, and 14cm are:

For perimeter 16cm: 15 cm² and 16 cm²

For perimeter 20cm: 24 cm² and 25 cm²

For perimeter 14cm: 12 cm²

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For the first sample {2.038 2.054 2.053 2.055 2.059 2.059 2.009 2.042 2.053 2.047}, the process is still "in order," while for the second sample {2.022 1.997 2.044 2.044 2.032 2.045 2.045 2.047 2.030 2.044}, the process might be "out of order."

To determine whether the process is still "in order" or "out of order," we can compare the current sample of output to the known mean and standard deviation of the process.

For the first sample {2.038 2.054 2.053 2.055 2.059 2.059 2.009 2.042 2.053 2.047}:

Calculate the sample mean by summing up all the values in the sample and dividing by the number of values (n = 10):

Sample mean = (2.038 + 2.054 + 2.053 + 2.055 + 2.059 + 2.059 + 2.009 + 2.042 + 2.053 + 2.047) / 10 = 2.048.

Compare the sample mean to the known process mean (2.050):

The sample mean (2.048) is very close to the process mean (2.050), indicating that the process is still "in order."

Calculate the sample standard deviation using the formula:

Sample standard deviation = sqrt(sum((x - mean)^2) / (n - 1))

Using the formula with the sample values, we find the sample standard deviation to be approximately 0.019 liters.

Compare the sample standard deviation to the known process standard deviation (0.020):

The sample standard deviation (0.019) is very close to the process standard deviation (0.020), further supporting that the process is still "in order."

For the second sample {2.022 1.997 2.044 2.044 2.032 2.045 2.045 2.047 2.030 2.044}:

Calculate the sample mean:

Sample mean = (2.022 + 1.997 + 2.044 + 2.044 + 2.032 + 2.045 + 2.045 + 2.047 + 2.030 + 2.044) / 10 ≈ 2.034

Compare the sample mean to the process mean (2.050):

The sample mean (2.034) is noticeably different from the process mean (2.050), indicating that the process might be "out of order."

Calculate the sample standard deviation:

The sample standard deviation is approximately 0.019 liters.

Compare the sample standard deviation to the process standard deviation (0.020):

The sample standard deviation (0.019) is similar to the process standard deviation (0.020), suggesting that the process is still "in order" in terms of variation.

In summary, for the first sample, the process is still "in order" as both the sample mean and sample standard deviation are close to the known process values.

However, for the second sample, the difference in the sample mean suggests that the process might be "out of order," even though the sample standard deviation remains within an acceptable range.

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The ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

Given the scale factor of two similar polygons, we need to find the ratio of their perimeters and the ratios of their areas,

To find the ratio of the perimeters of two similar polygons, we can simply write the scale factor as it is because the ratio of the perimeter is equal to the ration of the corresponding lengths.

1) So, perimeter = 3:1

The ratio of areas between two similar polygons is equal to the square of the scale factor.

Since the scale factor is 3:1, the ratio of their areas is:

(Ratio of areas) = (Scale factor)² = 9/1 = 9:1

Similarly,

2) Perimeter = 7:4

Area = 49/16

Hence the ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

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Answer:

was only able to do #11

Step-by-step explanation:

Answer:

#12

Step-by-step explanation:

A researcher obtains z = -6.45. The decision for a one-tailed test, upper-tail critical, at a .05 level of significance to retain the null hypothesis, option B.

Now, determining the critical value for the one-tailed test, upper-tail critical, at a .05 level of significance. Using a z-table, we find that the critical value for a one-tailed test at the .05 level of significance is 1.645.
Then, compare the obtained z-value to the critical value. In this case, the obtained z-value is -6.45, and the critical value is 1.645.
Further, making a decision based on the comparison. Since the obtained z-value (-6.45) is less than the critical value (1.645), we fail to reject the null hypothesis.
Therefore, the correct option is B) to retain the null hypothesis.

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Answer:

13

Step-by-step explanation:

test edge2020

Answer:

13

Step-by-step explanation:

x

Answer: 126

Step-by-step explanation:

11+5=16

Step-by-step explanation:

square root of 121 is 11 and cube root of 125 is 5 i.e

11^2=121 and 5^3=125

Answer:

D) \(1\frac{21}{40}m^2\)

Step-by-step explanation:

We can first change the area of his garden into an improper fraction:

\(7\frac{5}{8} m^2 = \frac{61}{8}m^2\)

Since Eric wants to split his garden into five equal sections, we divide the area of his garden by \(5\):

\(\frac{61}{8}\div 5 = \frac{61}{40}\)

\(=1\frac{21}{40}m^2\)

∴ The area of each new section is \(1\frac{21}{40}m^2\)

Hope this helps :)

Two or more angles are said to be supplementary if and only if they add up to \(180^{o}\).

Thus the required statements and appropriate reasons are stated below:

Two lines are said to be perpendicular when the measure of the angle between them is a right angle. Thus all right angle is congruent.

Angles are said to be congruent if and only if they have equal measure.

Thus in the given question, it can be deduced that:

                     STATEMENT                             REASONS

1. AC ⊥ BD, <1 ≅ <4                                  Given

2. <BCA = \(90^{o}\), <DCA = \(90^{o}\)                       Definition of perpendicular lines

3. <BCA ≅ <DCA                                      Right angles are congruent

4. <BCA = <1 + <2                                     Angle addition property

5. <DCA = <3 + <4                                    Angle addition property

6. <1 + <2 = <3 + <4                                   Distributive property

7. <1 + <2 = <4 + <3                                    Substitution property

8. <2 ≅ <3                                                 Reflexive property

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Using Pythagoras theorem If sin tetha = x/4, then cos tetha = √(16-x²)/4

Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“.

The sides of this triangle have been named Perpendicular, adjascent and Hypotenuse. If sin (tetha) = x/4, this means

x = opposite and

4 = hypotenuse

From hypotenuse² = opposite² + adjacent²

4² = x²+y²

y² = 16-x²

y = √ ( 16-x²)

cos (tetha) = adjacent/ hypotenuse

cos (tetha) = √(16-x²)/4

Therefore the value of cos (tetha) = √(16-x²)/4

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Answer:

B: 8

Step-by-step explanation:

The area of the two smaller squares equals the area of the big square so find the area to the big square

17 * 17 = 289

289 - 225 = 64

The square root of 64 is 8 so the answer is 8.

-5+-10 can also be written as -5-10.

An easy way to do it(this is how I solve it) is to add it like 5+10 then slappa a negative sign in front.

5+10=15

-15

hope it helps!

Answer:-4

Step-by-step explanation:

11,7,3,-1,-5,......they have a difference of -4

11-4=7

7-4=3

3-4=-1

-1-4=-5

Recursive formula for the given sequence is \(a_{n}=a_{n-1}-4\)

A recursive formula is a formula that defines any term of a sequence in terms of its preceding term(s).

Consider

The first term \(a_{1} =11\)

second term \(a_{2}=7\)

Common difference = 7-11 = -4

Third term \(a_{3}=3\)

Common difference = 3-7 =- 4

Fourth term \(a_{4}=-1\)

Common difference = -1-3= -4

Then the formula for the sequence is \(a_{n}=a_{n-1}-4\)

Hence, the Recursive formula for the give sequence is \(a_{n}=a_{n-1}-4\)

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The probability of selecting exactly two mid-sized cars and four compact cars out of a total of six cars is approximately 11.56%.

The answer to this question involves using the formula for combinations and multiplying the probabilities of each selected car.

Calculate the number of ways to select two mid-sized cars and four compact cars.
- Choose 2 mid-sized cars from 10: C(10, 2) = 10! / (2! * (10 - 2)!) = 45 ways
- Choose 4 compact cars from 15: C(15, 4) = 15! / (4! * (15 - 4)!) = 1365 ways

There are a total of 25 cars to choose from and we need to select 2 mid-sized cars from the 10 available and 4 compact cars from the 15 available. Using the formula for combinations, we get:

C(10,2) * C(15,4) = 45 * 1365 = 61,425

This represents the number of ways we can select exactly 2 mid-sized cars and 4 compact cars. To find the probability, we divide this number by the total number of possible selections:

C(25,6) = 53,130

So the probability of selecting exactly 2 mid-sized cars and 4 compact cars is:

61,425 / 53,130 ≈ 0.1156 or 11.56%

In conclusion, the probability of selecting exactly two mid-sized cars and four compact cars out of a total of six cars is approximately 11.56%.

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Answer:

  (x, y) = (-1, 5)

Step-by-step explanation:

You want to solve this system of equations by substitution.

The idea of substitution means we want to replace an expression in one equation for an equivalent expression based on the other equation.

Here, the second equation gives an expression equivalent to "y", so we can use that expression in place of y in the first equation:

  5x +2(-2x +3) = 5 . . . . . . . . (-2x+3) substitutes for y

  x +6 = 5 . . . . . . . . . . simplify

  x = -1 . . . . . . . . . subtract 6

  y = -2(-1) +3 = 5 . . . . . use the second equation to find y

The solution is (x, y) = (-1, 5).

__

Additional comment

Choosing substitution as the solution method often works well if one of the equations gives an expression for one of the variables, or if it can be solved easily for one of the variables. The "y=" equation is a good candidate for providing an expression that can be substituted for y.

Any equation that has one of the variables with a coefficient of +1 or -1 is also a good candidate for providing a substitution expression.

  4x -y = 3   ⇒   y = 4x -3 . . . . . for example

The attached graph confirms the solution above.

Answer:

$1.38/guest

Step-by-step explanation:

$550/400 guests = 1.375 ≈ $1.38/guest

The hotel's food cost per guest for this breakfast event is $1.375.

Calculate the hotel's food cost per guest for a breakfast event with 400 guests and a total breakfast cost of $550.

Step 1: Identify the given values.
Total number of guests = 400
Total breakfast cost = $550

Step 2: Calculate the food cost per guest.
To find the food cost per guest, you'll need to divide the total breakfast cost by the total number of guests:

Food cost per guest = total breakfast cost / total number of guests
Food cost per guest = $550 / 400

Step 3: Compute the result
Food cost per guest = $1.375

So, the hotel's food cost per guest for this breakfast event is $1.375.

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True. Probability of an uncertain outcome is a number between 0 and +1, exclusively.

The probability of an uncertain outcome is a measure of the likelihood that the outcome will occur, and it is always a number between 0 and 1, inclusive. A probability of 0 means that the event is impossible, while a probability of 1 means that the event is certain. Probabilities between 0 and 1 indicate the degree of uncertainty about whether the event will occur or not.

Probabilities cannot be negative or greater than 1, as they represent a proportion of the total possible outcomes. If the probability of an event were negative or greater than 1, it would imply that the event is impossible or certain to occur, respectively, and violate the fundamental laws of probability theory.

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