Help I don’t understand this

A. Addition

Explanation

PEMDAS is an acronym for the words parenthesis, exponents, multiplication, division, addition, subtraction. Given two or more operations in a single expression, the order of the letters in PEMDAS tells you what to calculate first, second, third and so on, until the calculation is complete

Step 1

so, firts calculate the parenthesis

the operation in parenthesis is an addition

i hope this helps you

CenterWare's direct labor rate variance is $2,100 unfavorable, indicating that the actual rate paid for labor was higher than the standard rate. The direct labor efficiency variance is $2,500 favorable, suggesting that the company achieved higher productivity than expected. The total variance for direct labor is $400 favorable.

To compute the direct labor rate variance, we need to calculate the difference between the actual rate and the standard rate, and then multiply it by the actual hours worked. The formula for the rate variance is (Actual Rate - Standard Rate) × Actual Hours. In this case, the standard rate is $21.00 per hour, and the actual rate is $18.00 per hour. The actual hours worked are 2,500 DLH. Plugging in these values, we find the direct labor rate variance to be ($18.00 - $21.00) × 2,500 = -$7,500, indicating an unfavourable variance.

To calculate the direct labor efficiency variance, we need to find the difference between the actual hours worked and the standard hours allowed, and then multiply it by the standard rate. The formula for the efficiency variance is (Actual Hours - Standard Hours) × Standard Rate. The standard hours allowed are 2,000 DLH (1,000 pots × 2.0 hours per pot). Substituting the values, we get (2,500 - 2,000) × $21.00 = $10,500, indicating a favorable variance.

The total variance for direct labor is the sum of the rate variance and the efficiency variance. In this case, the total variance is -$7,500 + $10,500 = $3,000, which is favorable, indicating that the company performed better than expected in terms of labor cost and efficiency.

The responsibility for the rate variance generally lies with the purchasing department, as they are responsible for negotiating labor rates and purchasing materials at the standard price. The efficiency variance is typically the responsibility of the production department, as they are accountable for achieving the standard labor hours and maximizing productivity.

The rate variance reflects the difference between the actual rate paid for labor and the standard rate. An unfavorable rate variance suggests that the company paid more for labor than anticipated, which could be due to factors like higher wages or inefficient labor management. Conversely, a favorable rate variance would indicate cost savings in labor.

The efficiency variance measures the productivity of labor and represents the difference between the actual hours worked and the standard hours allowed. A favorable efficiency variance implies that the company achieved higher productivity or used fewer labor hours than expected. It could result from factors such as skilled and efficient labor, improved production processes, or effective workforce management.

To learn more about variance refer:

https://brainly.com/question/25639778

#SPJ11

Answer:

119

Step-by-step explanation:

Write 35% as 35 over 100

Since, finding the fraction of a number is same as multiplying the fraction with the number, we have

35 over 100 of 340 = 35 over 100 × 340

35 divided by 100 x 340 = 119

Hence, you solution is 119.

Answer:

The first row

Step-by-step explanation:

Letters A,B,C,D

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

Explanation:

Check out the diagram below to see where the lines of symmetry are located.

For the letter A, we have a vertical line through the center that is the mirroring line. Reflecting one half over that line generates the other half.

For letter B, we have a horizontal line through the center. This applies to letters C and D as well.

This is why answer choice 1 is the final answer.

-----------

For letter Z, we have neither a vertical nor a horizontal mirror line. This letter doesn't have any lines of symmetry (though it does have rotational symmetry). So we can rule out answer choice 2.

Letter N is pretty much the same idea as letter Z. There aren't any lines of symmetry but we do have rotational symmetry. So we can rule out answer choice 3.

Lastly, we can rule out answer choice 4 because letter S has the same properties as letters Z and N.

The value of the function f(g(2))  is: f(g(2)) = -12

Here,

To find the value of f(g(2)),

we first need to find the value of g(2), and then use that result as the input for the function f.

Given:

f(x) = 2x - 4

g(x) = -5x + 6

Step 1: Find g(2)

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

g(2) = -10 + 6

g(2) = -4

Step 2: Use the result g(2) as the input for f(x)

f(g(2)) = f(-4)

f(x) = 2x - 4

f(-4) = 2(-4) - 4

f(-4) = -8 - 4

f(-4) = -12

Therefore, f(g(2)) = -12.

To learn more on function click:

brainly.com/question/21145944

#SPJ4

34% of the data in a normal distribution is more than 1 standard deviation above the mean.

In a normal distribution, about 68% of the data falls within one standard deviation above or below the mean. This means that roughly 34% of the data falls one standard deviation above the mean.

To be more precise, we can use the empirical rule or the 68-95-99.7 rule, which states that:

Approximately 68% of the data falls within one standard deviation of the mean.

Approximately 95% of the data falls within two standard deviations of the mean.

Approximately 99.7% of the data falls within three standard deviations of the mean.

Therefore, if we assume that the normal distribution is perfectly symmetrical, we can estimate that roughly 34% of the data falls more than one standard deviation above the mean.

To learn more about normal distribution here:

https://brainly.com/question/20875827

#SPJ4

No, Lydia's assertion that δSTU is a right triangle is not correct.

A right triangle is a triangle in which one of the angles measures 90 degrees (a right angle). To determine if δSTU is a right triangle, we need to examine the angles formed by the given coordinates.

Using the coordinates:

s (-3, 0)

t (0, -3)

u (3, -3)

We can calculate the slopes of the lines formed by connecting these points to see if any of them are perpendicular (indicating a right angle).

The slope of the line connecting points s and t is:

m(st) = (y₂ - y₁) / (x₂ - x₁) = (-3 - 0) / (0 - (-3)) = -3/3 = -1

The slope of the line connecting points s and u is:

m(su) = (y₂ - y₁) / (x₂ - x₁) = (-3 - 0) / (3 - (-3)) = -3/6 = -1/2

The slope of the line connecting points t and u is:

m(tu) = (y₂ - y₁) / (x₂ - x₁) = (-3 - (-3)) / (3 - 0) = 0/3 = 0

None of the slopes calculated are perpendicular to each other, meaning none of the angles formed by the given coordinates are 90 degrees. Therefore, δSTU is not a right triangle.

In summary, Lydia's assertion that δSTU is a right triangle is incorrect because the angles formed by the given coordinates do not include a 90-degree angle.

Learn more about triangle here : brainly.com/question/29083884

#SPJ11

Answer:\(y=\frac{x}{w+q}\)

Step-by-step explanation:

Answer: x = 28

Please give Brainliest if this helped you

Step-by-step explanation:

The average rate of change of y with respect to x over the interval [1, 5] for function \(y=4x^{2}\) is 24.

To find the average rate, follow these steps:

Therefore, the average rate of change of y with respect to x over the interval [1, 5] for the function \(y=4x^{2}\)  is 24.

Learn more about average rate of change:

brainly.com/question/8728504

#SPJ11

Answer:Triangle A = 7.5 Triangle B= 15 Area=22.5

Step-by-step explanation:

So first we have to get the area of Triangle A. This means we have to find the height and base of it. The base is 5 and the height is 3 as you can see in the picture. So 5x3 equals 15, but because it's a triangle we have to divide by 1/2, which makes 7.5. So the area for Triangle A is 7.5.

Now we have to find the area for Triangle B. The height is 3 and the base is 10. So like we did with Triangle A we have to multiply and then divide by 1/2. Which makes 15.

Now that you have both areas you just have to add them together. Which makes 22.5.

So 22.5 is the answer. Give brainilest if you can!

The bird is flying at an angle of elevation of 39 degrees from the observer's line of sight, who is located 500 feet away from the school. By using trigonometry, we can determine that the bird is flying at a height of approximately 318.3 feet over the school.

To calculate the height at which the bird is flying, we can use trigonometric ratios. Let's consider the right triangle formed by the observer (O), the bird (B), and the school (S). The side opposite the angle of elevation (39 degrees) is the height at which the bird is flying, and the adjacent side is the distance from the observer to the school (500 feet).

We can use the tangent function, which is defined as the ratio of the opposite side to the adjacent side in a right triangle. Applying it here, tan(39°) = height/500. Rearranging the equation, we find that the height is given by height = 500 * tan(39°).

Calculating this value, we get height ≈ 500 * 0.809 = 404.5 feet. Therefore, the bird is flying at a height of approximately 318.3 feet (rounded to one decimal place) over the school.

Learn more about angle here:

https://brainly.com/question/30147425

#SPJ 11

Answer:

1781.55 i thing but try with this answer

Step-by-step explanation:

The values of a, b and c are a= 2, b = 3, c = -10

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We have been given an Cos Ф = 1/8

Cos Ф = 4x/y

Cos Ф = 4x/y = 1/8

x/y = 1/32

We need to write given expression in the form y² = ax² +bx+c, where a, b and c are numbers.

2x² + 12x + 8

=  2x² + 12x + 18 - 18 + 8

= (√2x + 3√2)² - 10

= (√2)² (x + 3)² - 10

= 2(x + 3)² - 10

Comparing with expression where a, b and c are numbers.

a = 2, b = 3 and c = -10

Learn more about an expression here:

brainly.com/question/1859113

#SPJ1

The value of the exponent (2/5)^3 is \(\frac{8}{125}\)

In the above question, it is given that

(2/5)^3

The number of times a number has been multiplied by itself is referred to as an exponent. For instance, the expression 2 to the third (written as 2^3) signifies 2 x 2 x 2 = 8.

We need to solve it and then find the value of the exponent

(2/5)^3

= \(\frac{2}{5}\) x \(\frac{2}{5}\) x \(\frac{2}{5}\)

= \(\frac{2 . 2. 2}{5 . 5 . 5}\)

= \(\frac{8}{125}\)

Therefore the value of the exponent (2/5)^3 is \(\frac{8}{125}\)

To learn more about, exponential here

https://brainly.com/question/219134

#SPJ1

Given:

A right rectangular prism's edge lengths are 6 inches, 3 inches, and 3 1/2 inches.

We will find the number of cubes with edge length = 1/3 inches that can fit inside the prism

We will find the volume of the prism and the volume of the cube, then divide the volume of the prism by the volume of the cube:

So, the number of the cubes will be as follows:

So, the answer will be option D) 1701 unit cubes

Answer:

(8,0)

Step-by-step explanation:

Answer:The y-intercept is (0,10)

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

x-intercept(s): (ln(11),0)

y-intercept(s): (0,10)

The solution is: number of cubes are 1120.

Here, we have,

Volume of wood block :

V = (n+5)(n+8)(n+14)

Number of cubes = Volume of wood block/ Volume of small cubes

Number of cubes, N = (n+5)(n+8)(n+14)    ....1)

Number of cubes with on sides painted is :

n = (n+5-2)(n+8-2)(n+14-2)

n = (n+3)(n+6)(n+12)

It is given that :

n = N/2

(n+3)(n+6)(n+12) = (n+5)(n+8)(n+14)/2

Solving above equation, we get :

n = 2

Putting value of n in equation 1, we get :

N = (2+5)(2+8)(2+14)

N = 7×10×16

N = 1120  cubes

Therefore, number of cubes are 1120.

Hence, this is the required solution.

To learn more on volume click :

brainly.com/question/1578538

#SPJ1

complete question:

A block of wood is in the shape of a rectangular prism with dimensions n+5 cm, n+8 cm, and n+14 cm. All faces of the block are painted, and then the block is cut into 1cm cubes using parallel cuts to each face. If exactly half of the cubes have no paint on them, find the total number of cubes.

Answer:

1+i

Step-by-step explanation:

Divide by 1

(1/1+i)

(1+i)

Identify the components of the numbers and add the real and imaginary parts separately

=(1)+(1)i

=(1)+(1)i

=(1+i)

Answer: A is 80 and B is 85 train B is going faster

Step-by-step explanation:

hope this helps

because A is already given and to find b divide d/t to find constant and after doing so b is 5km per hour faster

The probability that a randomly selected x-value from the distribution is in the given interval is 68.27%.

The area under the normal curve is calculated using the cumulative normal distribution.

Step 1: Calculate z-score for lower boundary (25):

z = (25-28)/3

= -1

Step 2: Calculate z-score for upper boundary (31):

z = (31-28)/3

= 1

Step 3: Calculate the area under the normal curve between the two z-scores using the cumulative normal distribution:

Area = 0.6827

Step 4: Calculate the probability that a randomly selected x-value from the distribution is in the given interval:

Probability = Area

= 0.6827

Learn more about probability here

https://brainly.com/question/11234923

#SPJ4

a. all solutions contain (0,0), we note that when x = 0, y = 0 + C(0) = 0 for any value of C. b. the particular solution is y = x + x = 2x. c. There are no horizontal asymptotes because y approaches infinity as x approaches infinity and negative infinity as x approaches negative infinity.

(a) To verify that y = x + Cx, x = -C and C = 0 is a general solution, we substitute y = x + Cx into the differential equation:

dxdy = x*(x + Cx) - (x + Cx)^2 = x^2 - C^2x^2

The right-hand side simplifies to (1 - C^2)x^2, which is a function of x only. Therefore, y = x + Cx is a solution for any value of C, including C = 0.

To show that all solutions contain (0,0), we note that when x = 0, y = 0 + C(0) = 0 for any value of C.

(b) To find the particular solution that passes through (1,2), we plug in x = 1 and y = 2 into the general solution:

y = x + Cx

2 = 1 + C*1

C = 1

So the particular solution is y = x + x = 2x.

To find dxdy at (0,0), we take the derivative of y with respect to x:

dxdy = 2

(c) To find the vertical asymptotes, we look for values of x such that the denominator of y' (which is y^2 - x^2) becomes zero. This occurs when y = x or y = -x. Thus, the lines y = x and y = -x are vertical asymptotes.

There are no horizontal asymptotes because y approaches infinity as x approaches infinity and negative infinity as x approaches negative infinity.

(d) The particular solution that passes through (1,2) is a straight line with slope 2, passing through the point (0,0). To sketch both branches of this curve, we extend the line through the origin in both directions.

Learn more about horizontal asymptotes here

https://brainly.com/question/4138300

#SPJ11

Answer:

The average rate of change of a function over an interval is found by taking the difference between the function's values at the endpoints of the interval and dividing by the length of the interval. In this case, we have:

f(1) = -3(1)^3 + 7(1) = -3 + 7 = 4

f(3) = -3(3)^3 + 7(3) = -27 + 21 = -6

The average rate of change over the interval from x=1 to x=3 is therefore (-6 - 4) / (3 - 1) = -10 / 2 = -5.

To label your answer, you could write something like: "The average rate of change of the whale's movement over the interval from x=1 to x=3 seconds is -5 meters/second."

Alright! Let's go step by step. We want to understand how the house size relates to the number of residents. In other words, as the number of residents changes, how does the size of the house change? This relationship can be represented by a linear regression equation. The general form of a linear regression equation is:

y = m*x + b

Here:

- y is the dependent variable (in our case, the house size).

- x is the independent variable (in our case, the number of residents).

- m is the slope of the line (how much y changes for a unit change in x).

- b is the y-intercept (the value of y when x is 0).

We'll use the data you provided to calculate 'm' and 'b'. There are different ways to calculate these values, but I'll use a method that is relatively simple to understand:

m = (N * Σ(xy) - Σx * Σy) / (N * Σ(x^2) - (Σx)^2)

b = (Σy - m * Σx) / N

Where:

- N is the number of data points (in our case, 15).

- Σ stands for summation (sum of all values).

Now, let's calculate 'm' and 'b' using the data you provided:

Number of Residents(x) | House size (Sq. ft)(y) | xy | x^2

------------------------|------------------------|----|-----

3                      | 1992                   |5976|9

3                      | 1754                   |5262|9

3                      | 1766                   |5298|9

5                      | 2060                   |10300|25

6                      | 2293                   |13758|36

6                      | 2139                   |12834|36

3                      | 1836                   |5508|9

4                      | 1924                   |7696|16

6                      | 2321                   |13926|36

4                      | 2060                   |8240|16

3                      | 1769                   |5307|9

4                      | 1955                   |7820|16

5                      | 2309                   |11545|25

4                      | 1857                   |7428|16

4                      | 1972                   |7888|16

Σx = 66

Σy = 30999

Σxy = 120978

Σ(x^2) = 282

Plug these values into our formulas:

m = (15 * 120978 - 66 * 30999) / (15 * 282 - 66^2)

  ≈ 305.91

b = (30999 - 305.91 * 66) / 15

  ≈ 905.27

So our linear regression equation is:

House size = 305.91 * (Number of Residents) + 905.27

Now, let's predict the house size for a family of 5 residents:

House size = 305.91 * 5 + 905.27

           ≈ 2444.82 Sq. ft

This means that, according to our linear regression model, a family of 5 residents would need a house size of approximately 2445 square feet.

Answer:

8

Step-by-step explanation:

f(x) = 5(3) - 7

f(x) = 15 - 7

f(x) = 8

Answer:

(-1, 0) and (5, 0)

Step-by-step explanation:

Just know that zeros is another term for x-intercepts. That's the point on the graph where the y coordinate equals 0.

We have two points here. (-1, 0) and (5,0) because those two points cross the line x=0

The value of x in the solution set of the inequality is -4.

Inequalities are of two types, > and <. The > sign means that left hand side is greater than the right hand side, while the < sign means that the left hand side is less than than the right hand side.

We can solve the inequality by assuming the inequality sign as the = sign, except that when we divide or multiply one side by (-1), the inequality sign will reverse (for eg it will change from > to <).

9(2x+1) < 9x - 18

2x+1 < x - 2

2x < x - 3

x < -3

This means that x can be any value less than -3 (but not equal to -3 since the sign is < and not ≤) . Hence, the answer is -4.

To learn more about inequalities visit the link below:

https://brainly.com/question/28823603

#SBJ4

Answer:

-4

Step-by-step explanation:
taking  test

By completing the square, the solutions to the equation x² - 3x + ¼ = 0, fully simplified, are: x = 3/2 + √2 and x = 3/2 - √2.

To solve the equation x² - 3x + ¼ = 0 by completing the square, we follow these steps:

Step 1: Move the constant term to the right side of the equation:

x² - 3x = -¼

Step 2: Take half of the coefficient of x (-3/2) and square it to complete the square. Add this value to both sides of the equation:

x² - 3x + (-(3/2))² = -¼ + (-(3/2))²

x² - 3x + 9/4 = 8/4

x² - 3x + 9/4 = 2

Step 3: Rewrite the left side of the equation as a perfect square:

(x - 3/2)² = 2

Step 4: Take the square root of both sides:

x - 3/2 = ±√2

x = 3/2 ±√2

Learn more about Completing the Square on:

https://brainly.com/question/13981588

#SPJ1