Evaluate expression if r=3, q=1 , and w=-2 .
r + 3q / 4r

Answer: x=7/2, x=-3

Step-by-step explanation:

First lets do look at it without the absolute value marks

4x-1=13

4x=14

x=7/2

Now lets do the same but assume 13 is negative,

4x-1=-13

4x=-12

x=-3

Answer:

170 degrees

Step-by-step explanation:

110+ 60= 170

x angle = 170 degrees

The answer is, the correct statement are , 1. The matrix B² is positive definite if A is positive definite. ,2. A square matrix and its transpose have the same set of eigenvectors. , 3. A real square matrix has only real eigenvalues. , 4. The dimension of the row space of a matrix A with rank 4 is 4. , 5. The dimension of the null space of matrix A is 4.

the correct statements from the options provided:

1. The matrix B² is positive definite if A is positive definite.
2. A square matrix and its transpose have the same set of eigenvectors.
3. A real square matrix has only real eigenvalues.
4. The dimension of the row space of a matrix A with rank 4 is 4.
5. The dimension of the null space of matrix A is 4.

Please note that the statements regarding the values of x, dx, v, r, Av, and trace are incomplete or incorrect, so I have not included them in my answer.

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Answer:

83 deg

Step-by-step explanation:

sum of angles in triangle = 180

<1=180-(31+66)=180-97=83

Answer:

83 degrees

Step-by-step explanation:

the angles in a triangle add up to 180 degrees

Answer:

V≈743.25

Step-by-step explanation:

V=5

12tan(54°)ha2=5

12·tan(54°)·4·182≈743.24624

a). The percentage of all possible values of the variable that lie between 7 and 12 is approximately 68%.

b). The percentage of all possible values of the variable that exceed 5 is 84.13.

c). The percentage of all possible values of the variable that are less than 4 is 0.62%.

To calculate this, we can use the properties of the standard normal distribution, which has a mean of 0 and a standard deviation of 1. We need to convert the values of 7 and 12 to z-scores, which represent the number of standard deviations away from the mean. The z-score for 7 is (7 - 9) / 2 = -1, and the z-score for 12 is (12 - 9) / 2 = 1.5. Looking up these z-scores in a standard normal distribution table, we find that the area between -1 and 1.5 is approximately 0.682. Therefore, approximately 68% of the values lie between 7 and 12.

The percentage of values of the variable that exceed 5 is approximately 84.13%. This can be calculated by finding the area under the normal distribution curve to the right of 5. To do this, we convert 5 to a z-score: (5 - 9) / 2 = -2. We then look up the z-score -2 in the standard normal distribution table and find that the area to the left of -2 is approximately 0.1587. Since we want the percentage of values that exceed 5, we subtract this value from 1 to get 1 - 0.1587 = 0.8413, or approximately 84.13%.

The percentage of values of the variable that are less than 4 is approximately 2.28%. To calculate this, we convert 4 to a z-score: (4 - 9) / 2 = -2.5. Looking up the z-score -2.5 in the standard normal distribution table, we find that the area to the left of -2.5 is approximately 0.0062. Therefore, approximately 0.62% of the values are less than -2.5. However, since we are interested in values less than 4, we need to consider the area to the right of -2.5. This is equal to 1 - 0.0062 = 0.9938. Therefore, approximately 99.38% of the values are greater than 4. To find the percentage that is less than 4, we subtract this value from 1: 1 - 0.9938 = 0.0062, or approximately 0.62%.

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Answer:

c = -22, 22

Step-by-step explanation:

\( {(x - 11)}^{2} = {x}^{2} - 22x + 121\)

\( {(x + 11)}^{2} = {x}^{2} + 22x + 121\)

The answer is x = -55/18. Step by step explanation is in the image below. :)

The statement "if f'(x) = g'(x) for 0 < x < 6, then f(x) = g(x) for 0 < x < 6" is false. This statement is False. If f'(x) = g'(x) for 0 < x < 6, it means that the derivatives of both functions are equal on the interval (0, 6).

However, this does not necessarily mean that the functions themselves are equal on that interval.

In other words, there could be a constant difference between f(x) and g(x), which would not affect their derivatives.

To illustrate this, consider the functions f(x) = x^2 and g(x) = x^2 + 1. The derivative of both functions is 2x, which is equal for all values of x.

However, f(x) and g(x) are not equal on the interval (0, 6), as g(x) is always greater than f(x) by 1.

Therefore, the statement "if f'(x) = g'(x) for 0 < x < 6, then f(x) = g(x) for 0 < x < 6" is false.

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Answer:

10/3 or reduced to 1 1/3

Step-by-step explanation:

So mutiplying  equations are pretty simple. But we can notice that we have a number instead of a fraction. When we see this, a thing that automatically goes through my head is, that a number as a fraction is also 5/1. From there you equation is now 2/3x5/1. We can now multiply the top two numbers and the bottom two numbers. Which equals 10/3.

☁️ Answer ☁️

10/3

Here's the mixed number form:

3 1/3.

Hope it helps!

Have a nice day noona/hyung ￣▽￣

Answer:

{4 |8}. 96. 24

sin4B{3. |9}= ___. = ___ = cos2A

{10|10} 100. 25

{9 |9}

We can conclude that there are no nontrivial clean pulsations for the given left-mounted beam with a simple support on the right.

To find the equation of clean pulsations for a left-mounted beam with a simple support on the right, we can use the differential equation that describes the deflection of the beam. Assuming the beam is subject to a distributed load and has certain boundary conditions, the equation governing the deflection can be written as:

d^2y/dx^2 + (chx)^2 * y = 0

Where:

y(x) is the deflection of the beam at position x,

d^2y/dx^2 is the second derivative of y with respect to x,

ch(x) is the hyperbolic cosine function.

To solve this differential equation, we can assume a solution in the form of y(x) = A * cosh(kx) + B * sinh(kx), where A and B are constants, and k is a constant to be determined.

Substituting this assumed solution into the differential equation, we get:

k^2 * (A * cosh(kx) + B * sinh(kx)) + (chx)^2 * (A * cosh(kx) + B * sinh(kx)) = 0

Simplifying the equation and applying the given identity (chx)^2 - (shx)^2 = 1, we have:

(A + A * chx^2) * cosh(kx) + (B + B * chx^2) * sinh(kx) = 0

For this equation to hold for all values of x, the coefficients of cosh(kx) and sinh(kx) must be zero. Therefore, we get the following equations:

A + A * chx^2 = 0

B + B * chx^2 = 0

Simplifying these equations, we have:

A * (1 + chx^2) = 0

B * (1 + chx^2) = 0

Since we are looking for nontrivial solutions (A and B not equal to zero), the expressions in parentheses must be zero:

1 + chx^2 = 0

Using the identity (sinx)^2 + (cosx)^2 = 1, we can rewrite this equation as:

1 + (1 - (sinx)^2) = 0

Simplifying further, we get:

2 - (sinx)^2 = 0

Solving for (sinx)^2, we find:

(sin x)^2 = 2

Since the square of the sine function cannot be negative, there are no real solutions to this equation. Therefore, we can conclude that there are no nontrivial clean pulsations for the given left-mounted beam with a simple support on the right.

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Answer:

x = 4

Step-by-step explanation:

x + 4(x+5) = 40 (Given)

x + 4x + 20 = 40 (Distribute the 4 into the x and 5)

5x + 20 = 40 (Add like terms)

5x = 20 (Subtract 20 on both sides)

x = 4 (Divide 5 on both sides)

Answer:

Step-by-step explanation:

c. trust me im right

Answer:

56.52 inches

Step-by-step explanation:

pi is the ratio of the circumference to the diameter so you can simply multiply the diameter by pi to get the circumference which is 3.14 * 18 = 56.52

The sample space is 4845.Therefore, option C is correct.

Given: The mayor of a city randomly chooses 4 of the 20 wards in her city and surveys all the voters in those selected wards.

Solution: We have a sample size of 4 wards out of a total of 20 wards. The mayor has chosen all the voters in those 4 wards. So, the sampling method used here is stratified sampling as the mayor chose the voters of specific 4 wards.

Sample space = Total number of ways to select 4 wards out of 20 wards= C(20,4) = 20!/(4!(20 - 4)!) = 4845

Hence, the sample space is 4845.Therefore, option C is correct.

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Answer:

24/5

Step-by-step explanation:

khan <3

The 4th term of the geometric progression is a₄ = 24/5

A geometric progression is a sequence in which each term is derived by multiplying or dividing the preceding term by a fixed number called the common ratio.

The nth term of a GP is aₙ = arⁿ⁻¹

The general form of a GP is a, ar, ar2, ar3 and so on

Sum of first n terms of a GP is Sₙ = a(rⁿ-1) / ( r - 1 )

Given data ,

Let the GP be represented as A

Now , the value of A =  -3/5, 6/5, -12/5 ...

Let the first term of the GP be a = -3/5

Let the second term of the GP be ar = 6/5

Now , the common ratio of the GP = second term / first term

Substituting the values in the equation , we get

The common ratio r = ( 6/5 ) / ( -3/5 )

The common ratio r = -2

Now , the 4th term of the GP is a₄ = ar³

Substituting the values in the equation , we get

a₄ = ( -3/5 ) ( -2 )³

a₄ = ( -3/5 ) ( -8 _

a₄ = 24/5

Hence , the 4th term of the GP is 24/5

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Answer:

1. alternate exterior angles

2. co-interior angles

3. corresponding angles

4. alternate interior angles

5. corresponding angles

6. co-interior angles

Answer:

30

Step-by-step explanation:

Solve for the hypotenuse for the bottom triangle (a^2+ b^2=c^2). You should get 40. After solving that you should be able to solve for c in the top triangle which should get you 30.

Using implicit differentiation, it is found that the rate of change is of the width is of -3 feet/min.

The area of a rectangle of length l and height h is given by:

\(A = lh\)

Applying implicit differentiation, the rate of change is given by:

\(\frac{dA}{dt} = l\frac{dh}{dt} + h\frac{dl}{dt}\)

In this problem, we have that:

Then:

\(\frac{dA}{dt} = l\frac{dh}{dt} + h\frac{dl}{dt}\)

\(0 = 6 + 2\frac{dl}{dt}\)

\(2\frac{dl}{dt} = -6\)

\(\frac{dl}{dt} = -3\)

The rate of change is of the width is of -3 feet/min.

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Answer:

d. $6

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Answer:

1) 12 boxes

2) 3, 6, 12

3) 12

4) 110 degrees

Step-by-step explanation:

1) Count the rectangles. Multiply the length of the rectangle in boxes to the width of rectangle in boxes.

Length: 4 boxes

Width: 3 boxes

4 x 3 = 12

12 boxes

2)

10% of 30 is 0.1 times 30.

0.1 x 30 = 30/10 = 3

20% of 30 is 0.2 times 20.

0.2 x 30 = 30/5 = 6

40% of 30 is 0.4 times 20.

0.4 x 30 = 30/2.5 = 12

3) Count the cubes. Reminder there are 2 boxes you cannot see.

Top Layer: 2

Middle Layer: 4

Back Bottom Layer: 4

Front Bottom Layer: 2

2 + 4 + 4 + 2 = 12

4) I cannot see the semicircle clearly, but I do know that a circle is 360 degrees. A semicircle, half of a circle, is 180 degrees.

180/18 (The angle of each section)

10

11 Sections

10 x 11 = 110

The Analyst can use COALESCE function to eliminate the null values from the results.

The SQL Coalesce functions is used to handle NULL values. During the expression evaluation process the NULL values are replaced with the user-defined value. It  returns the first non-NULL value from a series of expressions.

The SQL Coalesce function evaluates the arguments in order and always returns first non-null value from the defined argument list.

Few Properties of COALESCE Function

SYNTAX -

COALESCE ( expression [ ,...n ] )  

Hence, the analyst can use COALESCE function to eliminate the null values from the results.

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Answer:

the answer is C.

Step-by-step explanation:

sine A = O/H

Cos A = A/H

Buss and Plomin's model of temperament proposes that there are three general temperaments: emotionality, activity, and sociability.

These temperaments are believed to be genetically based and to influence an individual's personality traits and behaviors throughout their life. Emotionality refers to an individual's tendency to experience strong emotional reactions, while activity refers to an individual's level of energy and impulsiveness.

Emotionality refers to an individual's tendency to experience and express emotions, such as fear, anger, and sadness.

Activity refers to an individual's level of physical and mental energy, and their tendency to seek out stimulation and engage in activities.

Sociability refers to an individual's preference for social interaction, including their level of interest in and enjoyment of socializing with others.

According to Buss and Plomin's model, these three temperaments are considered to be broad, genetically influenced traits that are present in varying degrees in every individual, and which can have a significant impact on a person's personality and behavior throughout their life.

Sociability, on the other hand, refers to an individual's degree of interest in social interaction and the degree to which they seek out social stimulation.

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Answer:

51 were the total number of the tickets sold at a school carnival were early-admission tickets.

Step-by-step explanation:

Total number of tickets sold by  = 100

Let \(x\) be the early-admission tickets sold by the school.

As 51% of the tickets sold at a school carnival were early-admission tickets.

so

\(x=\frac{51}{100}\times 100\)

  \(= 51\)

Therefore, 51 were the total number of the tickets sold at a school carnival were early-admission tickets.

Answer:

A&B

Step-by-step explanation:

Because by going through this paragraph the closest answer is that these are necessary steps to ensure that the youth have successful lives.

Answer:

Mrs Morgan spent 30% of her earnings.

Step-by-step explanation:

The percentage of her earnings did Ms. Morgan spent is calculated as:

Amount spent/ Total amount of money× 100

$15/$50 × 100

= 30%

Therefore, Mrs Morgan spent 30% of her earnings.

The new disney ears looked lovely.