The box plot shown represents the age of cars in a parking lot. Which statements are correct?

Select 3 correct answer(s)
Question 3 options:

The box plot suggests that about 75% of the cars are older than 5 years.


The mean age of a car is 8 years.


The box plot suggests that about 75% of the cars are newer than 11 years.


There are no outliers.


The box plot suggests that about 33.33% of the cars are between 5 and 11 years.

Answer: We can use the formula for sample size calculation for estimating a population proportion:

n = (z^2 * p * (1 - p)) / E^2

where:

z = the z-score corresponding to the desired level of confidence

p = the estimated proportion from the population (0.13 in this case)

E = the desired margin of error (0.05 in this case)

Substituting the given values, we get:

n = (z^2 * p * (1 - p)) / E^2

n = (2.326^2 * 0.13 * (1 - 0.13)) / 0.05^2

n ≈ 319.8

We need a sample size of at least 320 to be 98% confident that the estimated proportion of women-owned businesses providing profit-sharing and/or stock options is within 5 percentage points of the true population proportion.

The length of the ladder is approximately 17.4 feet.

Let's call the length of the ladder "L". We can use the Pythagorean theorem to solve for L.

We know that the ladder is leaning against a vertical wall at a slope of 9/4, which means that for every 9 units the ladder goes up, it goes 4 units away from the wall. We can use this to set up a right triangle with the ladder as the hypotenuse:

To know the sides use pythagorean theorem. The vertical distance from the ground to the tip of the ladder is 13.7 feet, so the length of the side opposite the angle θ (the angle between the ladder and the ground) is 13.7. The length of the side adjacent to θ (the distance from the wall to the base of the ladder) is (9/4) times the length of the opposite side.

Using the Pythagorean theorem, we have:

L² = (9/4 * 13.7)² + (13.7)²

L² = 114.96 + 187.69

L² = 302.65

L = √(302.65)

L ≈ 17.4

Therefore, the length of the ladder is approximately 17.4 feet.

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Answer:

sin (60°) = √3/2 = 0.866

and sin (60) is equal to cos(30) = 0.866 =√3/2

The score at the 80th percentile is 67.6.

To find the 80th percentile, we need to determine the score that separates the top 20% of the scores from the rest.

The five-number summary gives us the minimum, maximum, median, and quartiles of the distribution. We can use this information to determine the interquartile range (IQR), which is the distance between the first and third quartiles:

IQR = Q3 - Q1 = 76 - 39 = 37

To find the score at the 80th percentile, we need to add 80% of the IQR to Q1:

score at 80th percentile = Q1 + 0.8 × IQR

= 39 + 0.8 × 37

= 67.6

Therefore, the score at the 80th percentile is 67.6.

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The expression which is equivalent to a given expression 24 + 18 is given by option a. 6 ( 4 + 3 ).

The expression is equal to,

24 + 18

verification of equivalent expression is as follow,

6 ( 4 + 3 )

Using the distributive law multiplication over addition is ,

A (B + C ) = AB + AC

Apply it on 6 ( 4 + 3 ) we have

= 6 × 4 + 6 × 3

= 24 + 18

It is correct option and equivalent to 24 + 18.

6 ( 4 + 4 )

Using the distributive law multiplication over addition is ,

A (B + C ) = AB + AC

Apply it on 6 ( 4 + 4 ) we have

= 6 × 4 + 6 × 4

= 24 + 24

It is not correct option and not equivalent to 24 + 18.

2 ( 22 + 9 )

Using the distributive law multiplication over addition is ,

A (B + C ) = AB + AC

Apply it on 2 ( 22 + 9 ) we have

= 2 × 22 + 2 × 9

= 44 + 18

It is not correct option and not equivalent to 24 + 18.

6 ( 4 + 12 )

Using the distributive law multiplication over addition is ,

A (B + C ) = AB + AC

Apply it on 6 ( 4 + 12 ) we have

= 6 × 4 + 6 × 12

= 24 + 72

It is not correct option and not equivalent to 24 + 18.

Therefore, the equivalent expression of 24 + 18 is equal to option a. 6 ( 4 + 3 ).

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To find the smallest possible value of $n$, we need to find the smallest value that satisfies all three conditions.

From the first condition, we know that $n = 9a + 5$ for some positive integer $a$.
From the second condition, we know that $n = 7b + 3$ for some positive integer $b$.
From the third condition, we know that $n = 5c + 1$ for some positive integer $c$.
We can set these equations equal to each other and solve for $n$:
$9a + 5 = 7b + 3 = 5c + 1$
Starting with the first two expressions:
$9a + 5 = 7b + 3 \Rightarrow 9a + 2 = 7b$
The smallest values of $a$ and $b$ that satisfy this equation are $a=2$ and $b=3$, which gives us $n = 9(2) + 5 = 7(3) + 3 = 23$.
Now we need to check if this value of $n$ satisfies the third condition:
$n = 23 \not= 5c + 1$ for any positive integer $c$.
So we need to try the next possible value of $a$ and $b$:
$9a + 5 = 5c + 1 \Righteous 9a = 5c - 4$
$7b + 3 = 5c + 1 \Righteous 7b = 5c - 2$
If we add 9 times the second equation to 7 times the first equation, we get:
$63b + 27 + 49a + 35 = 63b + 45c - 36 + 35b - 14$
Simplifying:
$49a + 98b = 45c - 23$
$7a + 14b = 5c - 3$
$7(a + 2b) = 5(c - 1)$
So the smallest possible value of $c$ is 2, which gives us $a + 2b = 2$. The smallest values of $a$ and $b$ that satisfy this equation are $a=1$ and $b=1$, which gives us $n = 9(1) + 5 = 7(1) + 3 = 5(2) + 1 = 46$.
Therefore, the smallest possible value of $n$ is $\boxed{46}$.

To find the smallest possible value of $n$ which is a four-digit positive integer such that dividing $n$ by $9$, the remainder is $5$, dividing $n$ by $7$, the remainder is $3$, and dividing $n$ by $5$, the remainder is $1$, follow these steps:
Step 1: Write down the congruences based on the given information.
$n \equiv 5 \pmod{9}$
$n \equiv 3 \pmod{7}$
$n \equiv 1 \pmod{5}$
Step 2: Use the Chinese Remainder Theorem (CRT) to solve the system of congruences. The CRT states that for pairwise coprime moduli, there exists a unique solution modulo their product.
Step 3: Compute the product of the moduli.
$M = 9 \times 7 \times 5 = 315$
Step 4: Compute the partial products.
$M_1 = M/9 = 35$
$M_2 = M/7 = 45$
$M_3 = M/5 = 63$
Step 5: Find the modular inverses.
$M_1^{-1} \equiv 35^{-1} \pmod{9} \equiv 2 \pmod{9}$
$M_2^{-1} \equiv 45^{-1} \pmod{7} \equiv 4 \pmod{7}$
$M_3^{-1} \equiv 63^{-1} \pmod{5} \equiv 3 \pmod{5}$
Step 6: Compute the solution.
$n = (5 \times 35 \times 2) + (3 \times 45 \times 4) + (1 \times 63 \times 3) = 350 + 540 + 189 = 1079$
Step 7: Check that the solution is a four-digit positive integer. Since 1079 is a three-digit number, add the product of the moduli (315) to the solution to obtain the smallest four-digit positive integer that satisfies the conditions.
$n = 1079 + 315 = 1394$
The smallest possible value of $n$ is 1394.

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For a normal random variable, the probability of an observation being less than the median is 0.5 or 50%.

This is because the median is the middle value in a set of data, and for a normal distribution, the probability of being below or above the median is equal. Therefore, half of the observations will be below the median and half will be above.

For a normal random variable, the probability of an observation being less than the median is 0.5 or 50%. This is because, in a normal distribution, the median is the value that divides the distribution into two equal halves, with 50% of the observations falling below it and 50% above it.

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As x approaches infinity, the limit of function [(2x-1)(3-x)]/[(x-1)(x+3)] is equal to -2.

What is function?

In mathematics, a function is a relation between a set of inputs (called the domain) and a set of possible outputs (called the codomain) with the property that each input is related to exactly one output.

To find the limit of [(2x-1)(3-x)]/[(x-1)(x+3)] as x approaches infinity, we need to consider the highest power of x in the numerator and the denominator.

In the numerator, the highest power of x is [tex]x^2[/tex], which comes from the product of (2x)(3). In the denominator, the highest power of x is also [tex]x^2[/tex], which comes from the product of (x)(x).

Thus, we can use the rule that when the highest powers of x in the numerator and denominator are equal, the limit is the ratio of the coefficients of these highest powers. Therefore:

lim [(2x-1)(3-x)]/[(x-1)(x+3)]

= lim [([tex]-2x^2[/tex] + 7x - 3)/([tex]x^2[/tex] + 2x - 3)]

= lim [-2 + (7/x) - (3/[tex]x^2[/tex])] / [1 + (2/x) - (3/[tex]x^2[/tex])]

= -2/1

= -2

Therefore, as x approaches infinity, the limit of [(2x-1)(3-x)]/[(x-1)(x+3)] is equal to -2.

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We can expect the mean length of ears in the next generation to be 31.6 cm.

It is given that the narrow sense heritability (h2) is 0.70, which means that 70% of the total variation in maize ear length is due to genetic factors.

Let the mean length of ears in the original population be µ and the mean length of ears in the selected plant be x. Then, we can use the formula for response to selection to find the expected mean length of ears in the next generation:

x' = µ + h2 * (x - µ)

Substituting the given values, we get:

x' = 28 + 0.70 * (34 - 28) = 31.6 cm

Therefore, we can expect the mean length of ears in the next generation to be 31.6 cm.

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When using non-self supporting ladders, it is essential to ensure they are positioned at an appropriate angle to provide the necessary stability and safety for the user.

The angle at which the ladder is placed is critical because it determines the distance between the base of the ladder and the wall or surface it is resting against, In general, non-self supporting ladders must be positioned at an angle where the horizontal distance is no less than 1/4 of the ladder's working length.

For example, if you are using a 12-foot ladder, the base of the ladder should be positioned 3 feet away from the wall or surface it is leaning against. This ensures that the ladder is stable and will not slip or tip over during use.

The angle of the ladder is also important because it affects the amount of force and pressure exerted on the ladder and the surface it is resting against. If the ladder is placed at too steep of an angle, the weight of the user can cause the ladder to slide or fall backward. Conversely, if the ladder is placed at too shallow of an angle, the weight of the user can cause the ladder to slide or fall forward.

Therefore, it is crucial to position non-self supporting ladders at an appropriate angle to ensure the safety of the user. Always follow the manufacturer's guidelines and safety instructions when using ladders and avoid taking unnecessary risks. Remember to take your time and stay focused on the task at hand to avoid accidents and injuries.

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The given triangle is an isosceles triangle, where two sides and two angles are congruent. The value of x is 46 degrees.

It should be noted that because the triangle is isosceles, and the base angles are x.

The following equation can be used to solve for x

x + x + 88 = 180 --- sum of angles in a triangle

So, we have:

2x + 88 = 180

Collect like terms

2x = 180 - 88

2x = 92

Divide both sides by 2

x = 92 / 2

x = 46

Hence, the measure of x is 46°

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Answer:

0.24 mi/min

Step-by-step explanation:

v = x/t

x= 4.8

t = 20

 so 4.8 divided by 20 = 0.24

Answer:

The correct answer is B. In set B, the input of -2 does not correspond to exactly one output.

The number of  combinations of random samples  of 5 students can be selected is 56, here, the correct answer is 60.

To find the number of combinations of selecting a random sample of 5 students from a group of 12 students, you can use the formula for combinations which is:

C(n, k) = n! / (k!(n-k)!)

where C(n, k) represents the number of combinations, n is the total number of students (12 in this case), and k is the number of students to be selected (5 in this case). The exclamation mark (!) represents a factorial, which means the product of all positive integers up to that number.

Using the formula, we can calculate the number of combinations:

C(12, 5) = 12! / (5!(12-5)!)
= 12! / (5!7!)
= (12×11×10×9×8) / (5×4×3×2×1)
= 95,040 / 1,680
= 56.52 (rounded)

Since the number of combinations must be a whole number, the correct answer is 56, which is not among the given answer choices. However, the closest answer choice to 56 is 60.

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The matrix exponential M(t) = exp(t*A) are: M11(t) = exp(1*t)*(-1/2)*(-1/2) + exp(2*t)*(1/2)*(1/2) = (1/4)*exp(t) + (1/2)*exp(2*t)
M12(t) = exp(1*t)*(-1/2)*(1) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) - exp(t))
M21(t) = exp(1*t)*(1)*(1/2) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) + 1)
M22(t) = exp(1*t)*(1)*(1) + exp(2*t)*(1)*(1) = exp(t) + exp(2*t)

To find the matrix exponential M(t) = exp(t*A), we first need to find the eigenvectors of A corresponding to the eigenvalues X1 = 1 and X2 = 2.

For X1 = 1, we solve the equation (A - I)*v = 0, where I is the identity matrix:

(A - I)*v = (1 1; 2 2 - 1)*v = 0
RREF([A - I, zeros(2,1)])
ans =
   0    0   -1
   0    0    0

So we have the equation -v2 = 0, which means v2 can be any non-zero value. Let's choose v2 = 1, then v1 = -1/2. So the eigenvector corresponding to X1 is v1 = (-1/2; 1).

For X2 = 2, we solve the equation (A - 2*I)*v = 0:

(A - 2*I)*v = (-1 1; 2 -2)*v = 0
RREF([A - 2*I, zeros(2,1)])
ans =
   0    0   -1
   0    0    0

So we have the equation -v2 = 0, which means v2 can be any non-zero value. Let's choose v2 = 1, then v1 = 1/2. So the eigenvector corresponding to X2 is v2 = (1/2; 1).

Now we can construct the matrix exponential M(t) = exp(t*A) using the formula:

M(t) = c1*exp(X1*t)*v1*v1' + c2*exp(X2*t)*v2*v2'

where c1 and c2 are constants determined by the initial conditions. Since we don't have any initial conditions given, we can choose c1 = 1 and c2 = 0 for simplicity.

So we have:

M11(t) = exp(1*t)*(-1/2)*(-1/2) + exp(2*t)*(1/2)*(1/2) = (1/4)*exp(t) + (1/2)*exp(2*t)
M12(t) = exp(1*t)*(-1/2)*(1) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) - exp(t))
M21(t) = exp(1*t)*(1)*(1/2) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) + 1)
M22(t) = exp(1*t)*(1)*(1) + exp(2*t)*(1)*(1) = exp(t) + exp(2*t)

So the matrix exponential M(t) is:

M(t) = ( (1/4)*exp(t) + (1/2)*exp(2*t)    (1/2)*(exp(2*t) - exp(t));
       (1/2)*(exp(2*t) + 1)              exp(t) + exp(2*t) )

To find the matrix exponential M(t) = exp(tA) given that the eigenvalues of matrix A are λ1 = 1 and λ2 = 2, we first need to find the eigenvectors corresponding to each eigenvalue, and then form the matrix P of eigenvectors and the diagonal matrix D of eigenvalues. Finally, we can compute M(t) using the formula:

M(t) = P * exp(tD) * P^(-1)

After finding the eigenvectors and forming the matrices P and D, compute exp(tD) by taking the exponentiation of each diagonal element:

exp(tD) = | exp(tλ1)   0      |
              | 0          exp(tλ2) |

Now, compute M(t) by multiplying P, exp(tD), and the inverse of P. The resulting matrix M(t) will have the following components:

M11(t) = exp(1*t)*(-1/2)*(-1/2) + exp(2*t)*(1/2)*(1/2) = (1/4)*exp(t) + (1/2)*exp(2*t)
M12(t) = exp(1*t)*(-1/2)*(1) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) - exp(t))
M21(t) = exp(1*t)*(1)*(1/2) + exp(2*t)*(1/2)*(1) = (1/2)*(exp(2*t) + 1)
M22(t) = exp(1*t)*(1)*(1) + exp(2*t)*(1)*(1) = exp(t) + exp(2*t)

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Answer: The increase percentage of tablet was 15%

Step-by-step explanation:

The price of the a tablet was increased from $180 to $207

Old Price = $180

New Price = $207

Increased price (Change in price) = New Price - Old price

                                                      =  207 - 180

                                                      =  $27

Increase percentage = Change in price/Old price x 100

Hence, The increase percentage of tablet was 15%

The solution to the equation is t = log(146)/8, and the approximate value of t is 0.270.

To solve the equation 0.5 *[tex]10^{8t}[/tex] = 73 for t, we can first simplify the left side of the equation by dividing both sides by 0.5 * 10^8:

[tex]10^{8t}[/tex] = 146

Next, we can take the logarithm of both sides of the equation using base 10:

[tex]log(10^{8t}) = log(146)[/tex]

Using the property of logarithms that says [tex]log(a^{b} ) = b*log(a)[/tex], we can simplify the left side of the equation:

8t * log(10) = log(146)

Since log(10) = 1, we can further simplify the equation:

8t = log(146)

Finally, we can solve for t by dividing both sides by 8:

t = log(146)/8

t = 2.164/8

The approximate the value of t as:

t ≈ 0.27054410

Therefore, the solution to the equation is t = log(146)/8, and the approximate value of t is 0.270.

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√(x² y²) = √[(r² + 2x² y²)/(1 + k²)], This gives us the value of √(x² y²) for the part of the sphere that lies above the cone in the first octant.

To find the value of √(x²y²), we need to know the equation of the surface that defines the part of the sphere and the cone in the first octant.

Let's assume that the sphere has radius r and its center is at the origin. Then, the equation of the sphere is:

x² + y² + z² = r²

Since the part of the sphere that lies above the cone is in the first octant, we can limit our analysis to the region where x, y, and z are all positive.

Now, let's consider the cone. We can assume that the cone has its vertex at the origin and its axis is along the z-axis. The equation of the cone can be written as:

z = k*√(x² + y²)

where k is a constant that depends on the angle of the cone.

To find the value of s√(x² y²), we need to find the point (x,y,z) that lies on the surface that defines the part of the sphere and the cone. Since the point lies on both surfaces, it must satisfy both equations:

x² + y² + z² = r²     (equation of sphere)

z = k*√(x² + y²)     (equation of cone)

We can eliminate z from these equations by substituting the equation of the cone into the equation of the sphere:

x² + y² + (k*√(x² + y²))² = r²

Simplifying this equation, we get:

x² + y² + k²*(x²+ y²) = r²

Factorizing this equation, we get:

(1 + k²)* (x² + y²) = r²

Therefore,

x² y² = (x² + y²)² - 2x² y²

We can then substitute this value into the previous equation to get:

x² + y² + k²*(x² + y²) = r²

(1 + k²)* (x² + y²) = r² + 2x² y²

Taking the square root of both sides, we get:

Therefore, √(x² y²) = √[(r² + 2x² y²)/(1 + k²)], This gives us the value of √(x² y²) for the part of the sphere that lies above the cone in the first octant.

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The answer is that an eight-ounce glass of apple juice contains 54.5 milligrams of vitamin C, and an eight-ounce glass of orange juice contains 67 milligrams of vitamin C.



Let's use algebra to solve this problem.

First, let's define two variables:

- Let's call the amount of vitamin C in one eight-ounce glass of apple juice "a".
- Let's call the amount of vitamin C in one eight-ounce glass of orange juice "o".

Using this notation, we can translate the information given in the problem into two equations:

- Equation 1: a + o = 181.5 (since one glass of apple juice and one glass of orange juice contain a total of 181.5 milligrams of vitamin C)
- Equation 2: 2a + 4o = 538.6 (since two glasses of apple juice and four glasses of orange juice contain a total of 538.6 milligrams of vitamin C)

Now we can solve this system of equations to find the values of "a" and "o".

One way to do this is to use the first equation to express one variable in terms of the other. For example, we could solve for "a" by subtracting "o" from both sides of Equation 1:

a = 181.5 - o

Then we could substitute this expression for "a" into Equation 2, and solve for "o":

2(181.5 - o) + 4o = 538.6

363 - 2o + 4o = 538.6

2o = 175.6

o = 87.8

Now that we know that one eight-ounce glass of orange juice contains 87.8 milligrams of vitamin C, we can use Equation 1 to find the amount of vitamin C in one glass of apple juice:

a + 87.8 = 181.5

a = 93.7

Therefore, an eight-ounce glass of apple juice contains 93.7 milligrams of vitamin C, and an eight-ounce glass of orange juice contains 87.8 milligrams of vitamin C.

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The volume of the truncated cone is approximately 70,336 ft3.

option B.

The volume of the truncated cone is calculated by using the following formula as shown below;

V = ¹/₃πh (R² + r² + Rr)

where;

The volume of the truncated cone is calculated as follows;

V = ¹/₃π(24) (40² + 20² + 40 x 20)

V = 70,371.7 ft³

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For function represented as "f(x) = 3x(x+5)", the value of f(-2) is -18.

The 'Function" is a rule which assigns unique output value for each input value for given set. A function takes one or more inputs, and produces a "single-output", The "input-values" are called domain, and "output-values" are named as range.

In order to find the value of function at "-2", we substitute x as "-2" in the given function f(x) and then evaluate the expression:

We get,

⇒ f(x) = 3x(x+5),

⇒ f(-2) = 3(-2)(-2+5),

⇒ f(-2) = 3(-2)(3),

⇒ f(-2) = -18,

Therefore, the value of f(-2) is -18.

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The given question is incomplete, the complete question is

For the function f(x) = 3x(x+5), find the value of f(-2).

To organize the results in a two-way table, we can create a table with rows for Spanish class (Yes/No) and columns for French class (Yes/No). The two-way table is shown below.

The intersection of each row and column will show the number of students who have taken both classes, only Spanish, only French, or neither.

Using the given information, we can fill in the table as follows:

        French Class No French Class Total

Spanish            45                           64                    109

No                     0                             82                    82

Total                 45                           146                   245

The marginal frequencies are included in the last row and column of the table. The marginal frequency for the Spanish class is 109 (45 + 64) and for the French class is 45 (45 + 0). The marginal frequency for students who have not taken either class is 82.

This table provides a clear visual representation of the survey results and allows for easy comparison between the number of students who have taken each class or neither. The information in this table could be useful for making decisions about language class offerings or analyzing student language learning trends.

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The growth rate of the sloth population when the population is made up of 275 individuals is 99 individuals per year.

To calculate the growth rate of the three-toed sloth population when there are 275 individuals, we will use the logistic growth model formula:

Growth rate = r * N * (1 - N/K)

where r is the maximum per capita growth rate (0.8 per year), N is the current population size (275 individuals), and K is the carrying capacity of the forest (500 individuals).

Growth rate = 0.8 * 275 * (1 - 275/500)
Growth rate = 0.8 * 275 * (1 - 0.55)
Growth rate = 0.8 * 275 * 0.45
Growth rate ≈ 99 individuals per year

So, the growth rate of the sloth population when the population is made up of 275 individuals is approximately 99 individuals per year.

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The flatarchy organization encourages innovation by employees, encouraging them to pursue ideas. So, correct option is C.

In a flatarchy, employees have a high degree of autonomy and decision-making power, which allows them to pursue and implement their ideas more easily.

This organizational structure allows for a more collaborative and open work environment where all employees, regardless of their position in the hierarchy, have the opportunity to contribute to the success of the organization.

In a flatarchy, employees are encouraged to share their ideas and collaborate with their peers. The organization empowers employees to take ownership of their work, encouraging them to be innovative and creative in their approach.

This approach is especially effective when the organization needs to be flexible and adaptable to a rapidly changing environment. By allowing employees to pursue their ideas and implement changes more quickly, the flatarchy organization can stay ahead of its competitors and continue to grow and evolve.

So, correct option is C.

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The  dental hygienist compute "critical value" during the process of hypothesis testing, the dental hygienist computes a value based on the significance level and test type.

During the hypothesis testing process, the dental hygienist would first choose a significance level (such as 0.05) and a test type (such as a one-tailed test in this case). Based on the significance level and degrees of freedom (which depend on the sample size and assumed population standard deviation), the hygienist would then look up the critical value from a t-distribution table.

The critical value represents the cutoff point beyond which the null hypothesis (in this case, that the average number of cavities is not more than 3) would be rejected. If the test statistic (calculated from the sample data) falls within the rejection region (determined by the critical value), the hygienist would reject the null hypothesis and conclude that there is evidence to support the claim that the average number of cavities is more than 3.

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The surface area of the cone with radius 4 inches and height 6.5 inches is equal to 146.07 square inches.

Radius of the cone = 4 inches

height of the cone = 6.5 inches

Let us consider 'r' be the radius of the cone and 'h' be the height of the cone.

Formula to calculate surface area of the cone

= πr ( r  + √ h² + r² )

Substitute the value of radius and height of the cone we have,

⇒ Surface area of the cone = π × 4 ( 4 + √ ( 6.5 )² + ( 4 )² )

⇒ Surface area of the cone =4π ( 4 + √58.25 )

⇒ Surface area of the cone = 4 × 3.14 ( 4 + 7.63 )

⇒ Surface area of the cone =  12.56 × 11.63

⇒ Surface area of the cone = 146.0728 square inches

⇒ Surface area of the cone = 146.07 in²

Therefore, the surface area of the cone is equal to 146.07 square inches.

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An equation that relates the lengths of the sides of the triangle is (2 + y)² + y² = 15².

The dimensions of this triangle are 9.56 cm by 11.56 cm by 15 cm.

In Mathematics and Geometry, Pythagorean's theorem is modeled or represented by the following mathematical equation (formula):

x² + y² = z²

Where:

x, y, and z represents the length of sides or side lengths of any right-angled triangle.

Based on the information provided about the side lengths of this right-angled triangle (one leg is 2 feet longer than the other leg), we have the following equation:

x = 2 + y

By substituting the side lengths and solving the quadratic equation, we have:

x² + y² = z²

(2 + y)² + y² = 15²

4 + 4y + y² + y² = 225

2y² + 4y - 221 = 0

y = 9.56 cm or y = -11.56 cm

x = 2 + y = 2 + 9.56 = 11.56 cm.

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The one of the given factor of the polynomial x³−x²−5x−3 is (x -3) and other factors is given by option b. ( x + 1 )².

The polynomial is equal to,

x³−x²−5x−3

One of the factor of the polynomial x³−x²−5x−3 is equal to

(x - 3 )

To get the remaining factors of the polynomial factorize it by given factor we have,

x³−x²−5x−3

= x³ - 3x² + 2x² -6x + x -3

= x² (x - 3 ) + 2x ( x - 3 ) + 1 ( x -3 )

= ( x -3 ) ( x² + 2x + 1 )

Factorize it further to get the simple factors of the polynomial.

= ( x -3 ) ( x² + x + x + 1)

= ( x -3 ) ( x ( x +1) + 1( x+ 1) )

= ( x -3 ) ( x + 1 )²

Therefore, the other factors of the polynomial is equal to option b. (x+ 1)².

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The above question is incomplete, the complete question is:

Given a polynomial and one of its factors, drag the remaining factors of the polynomial into the bin.

x³−x²−5x−3; x−3

a. (x-1)   b. ( x+1)²  c. ( 2x+ 1)  d. 3x - 1

The volume of the solid is [tex]\frac{32}{3}[/tex] cubic units.

To find the volume of the solid, we need to integrate the area of each cross section taken perpendicular to the y-axis over the range of y-values that the ellipse covers.

the height of each cross section will be equal to the y-coordinate of the ellipse at that point, since the triangles are isosceles and right-angled. The base of each cross section will be twice the height, since the triangles are isosceles, and the hypotenuse will lie in the ellipse.

So, for a given y-value, the area of the cross section will be:

[tex]A(y) = \frac{1}{2} \cdot 2y \cdot y = y^2[/tex]

To find the limits of integration for y, we need to find the y-coordinates of the points where the ellipse intersects the y-axis. We can do this by setting x = 0 in the equation of the ellipse:

[tex]4x^2 + 9y^2 = 36\\9y^2 = 36\\y^2 = 4\\y = \pm 2[/tex]

So, the limits of integration for y are -2 and 2.

The volume of the solid can now be found by integrating the area of the cross sections over the range of y-values:

[tex]V = \int_{-2}^{2} A(y) dy\\V = \int_{-2}^{2} y^2 dy\\\\V = \frac{1}{3}y^3 \Bigg|_{-2}^{2}\\V = \frac{1}{3}(2^3 - (-2)^3)\\V = \frac{32}{3}[/tex]

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Answer:

  C.  CD

Step-by-step explanation:

You want the type of savings vehicle that offers the highest interest rate, possibly with a requirement the deposit be for a specific period.

As of today, my local savings institution offers these choices:

The highest interest rate is for a CD, choice C, which requires the money stay deposited for a specific time.

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Additional comment

This institution also offers an interest rate of 0.10% on checking account deposits, with no monthly fees. Rates vary with the institution and over time. You will likely find different rates and/or charges if you explore the marketplace.

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