please help ASAP!!!!!​

Answer:

Answer:

Step-by-step explanation:

1. By definition, two angles are complementary if their sum is 90 degrees.

2. Keeping the information shown above on mind, you can write the following expression:

3. Now you must solve for x.

4. Therefore, you obtain that the value of x is the shown below

The perimeter of the cross-section of the rectangular prism is 42 meters.

The cross-section formed by the plane that contains points D, E, K, and L is a trapezoid with bases DE and KL and height 5.

The length of DE can be found using the Pythagorean theorem: DE = √((EK - DK)² + (EL - DL)²) = √((12 - 4)² + (0 - 0)²) = 8 meters.

Similarly, the length of KL is also 8 meters.

Therefore, the perimeter of the cross-section is the sum of the lengths of the sides of the trapezoid, which is given by

perimeter = DE + KL + 2√((EK - DL)² + 5²)

perimeter = 8 + 8 + 2√((12 - 0)² + 5²)

perimeter = 16 + 2*√(169)

perimeter = 16 + 26

perimeter = 42 meters (rounded to the nearest tenth)

Hence, the perimeter of the cross-section is 42 meters.

To know more about rectangular prism:

https://brainly.com/question/21308574

#SPJ4

--The given question is incomplete, the complete question is given

" The rectangular prism is intersected by a plane that contains points D, E, K, and L.

What is the perimeter of the cross section?

Enter your answer in the box. Round only your final answer to the nearest tenth.

m

A rectangular prism with height 5 meters, length 12 meters, and width 4 meters. The vertices are labeled as G, D, H, L, E, F, J, and K."--

The more precise estimator ẏ₁ is the most efficient in estimating the average salary. With given values, the confidence interval is calculated to determine whether to accept the claim of a $50,000 mean salary.



In this scenario, we have two estimators for the average salary: ẏ₁, which uses precise data, and ẏ₂, which includes less precise data. The efficiency of the estimators depends on the variance of the data. If we compare the variances, Var(ẏ₁) = 0% and Var(ẏ₂) = o²(1 + 3c). Since Var(ẏ₁) is zero, it implies that ẏ₁ is the most efficient estimator. The answer does not depend on the value of c.

In the second part, with c = 0, we have Var(Y) = o². Given N = 300, s² = 20,000,000, and ẏ₁ = $48,000, we can use these values to construct a confidence interval. Using a 1% significance level, the critical value is 2.57 (from the standard normal distribution). The confidence interval is given by ẏ₁ ± 2.57 * sqrt(s²/N), which results in $48,000 ± 2.57 * sqrt(20,000,000/300). If this interval contains $50,000, we would accept your friend's claim; otherwise, we would reject it.

To learn more about average click here

brainly.com/question/29550341

#SPJ11





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

Step-by-step explanation:

The line representing the equation 7x1 + 4x2 = 28 goes through the points (4,0) and (0,7).

The angle between vectors u and v is approximately 43.7 degrees to the nearest tenth of a degree.

To find the angle between two vectors, we can use the dot product formula and the magnitude of the vectors. The dot product of two vectors u and v is given by:

u · v = |u| |v| cos(theta)

where |u| and |v| are the magnitudes of vectors u and v, respectively, and theta is the angle between the vectors.

Given vectors u = <6, 4> and v = <7, 5>, we can calculate their magnitudes as follows:

|u| = sqrt(6^2 + 4^2) = sqrt(36 + 16) = sqrt(52) ≈ 7.21

|v| = sqrt(7^2 + 5^2) = sqrt(49 + 25) = sqrt(74) ≈ 8.60

Next, we calculate the dot product of u and v:

u · v = (6)(7) + (4)(5) = 42 + 20 = 62

Now, we can substitute the values into the dot product formula:

62 = (7.21)(8.60) cos(theta)

Solving for cos(theta), we have:

cos(theta) = 62 / (7.21)(8.60) ≈ 1.061

To find theta, we take the inverse cosine (arccos) of 1.061:

theta ≈ arccos(1.061) ≈ 43.7 degrees

Therefore, the angle between vectors u and v is approximately 43.7 degrees to the nearest tenth of a degree.

Learn more about angle here:

brainly.com/question/13954458

#SPJ11

We need 16 in the given expression to create a perfect square trinomial.

Let us say the given expression is:

\(x^{2} +8x +k^2\)...............(1)

We can rewrite the above expression as:

\(x^{2} +2*x*4 +k^2\).........(2)

The square of a+b is a²+2ab+b².

If we compare (2) with \(a^{2} +2ab+ b^{2}\)

We get, a =x, b = 4 and k²=b²

Since b=4

So, k² =4²

k² =16

Put the value of  k² in (1)

We get the expression \(x^{2} +8x +16\)

Therefore, We need 16 in the expression \(x^{2} +8x+....\)to create a perfect square trinomial.

To get more about polynomials visit:

https://brainly.com/question/2833285

Answer: OPTION C aka 16

Step-by-step explanation:

Answer:

I don`t know what time it is in the UK rn so I hope I`m not too late, but I tried putting the problems into a calculator.

Answer:

11

Step-by-step explanation:

1. First do the brackets because BEDMAS

So, (12÷4+1) = 4

2. 15 - 1 x 4

3. 15 - 4

4. 11

Hope this helps! :)

Use the symbolab website/app it's really helpful

To find the z-score for a sales associate who earns $37,500, we can use the formula:

z = (x - μ) / σ

Where:

x is the value we want to convert to a z-score (in this case, $37,500),

μ is the mean of the distribution (in this case, $32,500), and

σ is the standard deviation of the distribution (in this case, $2,500).

Substituting the given values into the formula, we have:

z = (37,500 - 32,500) / 2,500

z = 5,000 / 2,500

z = 2

Therefore, the z-score for a sales associate who earns $37,500 is 2.

To learn more about mean visit;

brainly.com/question/31101410

#SPJ11

The z-score for a sales associate earning $37,500 in a system where the mean salary is $32,500 and the standard deviation is $2,500 has a z-score of 2. This score indicates that the associate's salary is two standard deviations above the mean.

The z-score represents how many standard deviations a value is from the mean. In this case, the value is the salary of a sales associate, the mean is the average salary, and the standard deviation is the average variation in salaries.

We calculate the z-score by subtracting the mean from the value and dividing by the standard deviation, like so:

Z = (Value - Mean) / Standard Deviation

So, the z-score for an associate earning $37,500 would be:

Z = ($37,500 - $32,500) / $2,500

This gives us a z-score of +2, indicating that a salary of $37,500 is two standard deviations above mean.

https://brainly.com/question/34836468

#SPJ12

Answer:

D.

Step-by-step explanation:

Answer

The answer is D (10,9)

Step-by-step explanation:

i took the test on edmentum and got it right

(-5, 0 ) and (0, 5) are the ordered pair satisfies the inequality y < x+5

a relationship between two expressions or values that are not equal to each other is called 'inequality.

The given inequality is y < x+5

First, we have to find the x-intercept which occurs at y = 0

0 < x + 5

x<-5

For y-intercept,

y <  0+ 5

y <5

As a result, the obtained ordered pair is  (-5, 0 ) and (0, 5).

Hence, (-5, 0 ) and (0, 5) are the ordered pair satisfies the inequality y < x+5

To learn more on Inequality click:

https://brainly.com/question/28823603

#SPJ1

Divide both sides by −2, this sentence best describes what operation should be performed to solve the equation -2j = 15.

What is equation?

In mathematical formulas, the equals sign is used to indicate that two expressions are equal. The meaning of the word equation and its cognates might vary slightly depending on the language. In contrast to the definition of an equation in English, which is any properly created formula that joins two expressions with an equals sign, the definition of an equation in French is any properly constructed formula that comprises one or more variables.

As given,

-2j=15

Or, (-2j/-2)=(15/-2)

Or, j=-7.5

Hence the correct answer is divide both sides by −2.

To learn more about equation from the given link

https://brainly.com/question/2972832

#SPJ1

Answer:

Step-by-step explanation:

Use the slope formula to find the slope  m.

m  =  1 /2

m = rise/run = y_2 - y_1 / x_2 - x_1

m = slope

(x_1, y_1) = coordinates of first point in the line

(x_2, y_2) = coordinates of second point in the line

It shows that the values of the mileages are close to 24 mpg. Hence statistics refes 24 as the mean.

Mean is one of the measure of dispersion and is the avearage of a set of data.

According to the question, the magazine reports that the most common gas mileage was 24 mpg. This shows that reports have published several gas mileages for cars and truck and the average of this mileage is 24mpg

It shows that the values of the mileages are close to 24 mpg. Hence statistics refes 24 as the mean.

Learn more on mean here: https://brainly.com/question/14532771

#SPJ1

Answer:

9.5 Hours

Step-by-step explanation:

3.1x+40.5 is the equation

input x

3.1(9.5)+40.5

29.45+40.5

69.95

round that to 70

The time spent by the student studying would be option B: 9.5 Hours.

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

A student gets a score of 70 on the test.

The equation form as

3.1x + 40.5

Put x = 9.5

3.1(9.5)+40.5

29.45+40.5

69.95

Thus, round that to 70.

Learn more about equations here;

https://brainly.com/question/10413253

#SPJ1

Answer:

Principal = $9,152.93

Step-by-step explanation:

A = $9,152.93

A = P + I where

P (principal) = $7,500.00

I (interest) = $1,652.93

Calculation Steps:

First, convert R as a percent to r as a decimal

r = R/100

r = 10/100

r = 0.1 rate per year,

Then solve the equation for A

A = P(1 + r/n)nt

A = 7,500.00(1 + 0.1/12)(12)(2)

A = 7,500.00(1 + 0.008333333)(24)

A = $9,152.93

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $7,500.00 at a rate of 10% per year compounded 12 times per year over 2 years is $9,152.93.

Answer:

Step-by-step explanation:

Let equal sides of an isosceles triangle = a inches

Base = \(\frac{1}{2}a+2\) inches

Perimeter  = 32 inches

a + a + \(\frac{1}{2}a+2\) = 32

\(2a + \frac{1}{2}a+2 = 32\\\\\frac{2a*2}{1*2}+\frac{1}{2}a+2=32\\\\\frac{4a}{2}+\frac{1}{2}a+2=32\\\\\frac{5}{2}a+2 = 32\\\\\)

Subtract 2 from both sides

\(\frac{5}{2}a=32-2\\\\\frac{5}{2}a=30\\\\a=30*\frac{2}{5}\\\\a=6*2\)

a = 12 inches

base = \(\frac{1}{2}*12+2\)

        = 6 + 2

Base = 8 inches

The least possible use of the scale to find the counterfeit is 2.

Given:

Total number of marbles = 9

One marble is a counterfeit and it weighs less than others.

To find the counterfeit marble, divide the marbles in 3 groups, each containing equal number of marbles.

So, each group will have 3 marbles.

Now, weigh group 1 and group 2. If there is a difference in weight then the group having less weight has the counterfeit marble and if they weigh same then the third group has the counterfeit marble.

Now, weigh 2 marbles from the group that has the counterfeit marble, if they weigh same then the third marble is counterfeit and if their weight is different, then the marble weighing less is counterfeit.

Therefore, the least possible use of the scale to find the counterfeit is 2.

To know more about use of the scale here. https://brainly.com/question/14751282#

#SPJ4

Answer:

Step-by-step explanation:

its 45 cm due too

The parent function for g(x) = x + 2 is the identity function, f(x) = x, which is a straight line passing through the origin with a slope of 1.

To graph g(x) = x + 2, we start with the parent function and apply the transformation. The transformation for g(x) involves shifting the graph vertically upward by 2 units.

Here's the step-by-step process to graph g(x):

Plot points on the parent function, f(x) = x. For example, if x = -2, f(x) = -2; if x = 0, f(x) = 0; if x = 2, f(x) = 2.

Apply the vertical shift by adding 2 units to the y-coordinate of each point. For example, if the point on the parent function is (x, y), the corresponding point on g(x) will be (x, y + 2).

Connect the points to form a straight line. Since g(x) = x + 2 is a linear function, the graph will be a straight line with the same slope as the parent function.

The transformation of the parent function f(x) = x to g(x) = x + 2 results in a vertical shift upward by 2 units. This means that the graph of g(x) is the same as the parent function, but it is shifted upward by 2 units along the y-axis.

Visually, the graph of g(x) will be parallel to the parent function f(x), but it will be shifted upward by 2 units. The slope of the line remains the same, indicating that the transformation does not affect the steepness of the line.

The activity ratio in the value stream measures the efficiency of the production process by evaluating the ratio of value-added activities to non-value-added activities.

The activity ratio is a performance metric used in value stream mapping, which is a lean management tool for analyzing and improving the flow of materials and information in a production process.

It focuses on distinguishing value-added activities, which directly contribute to meeting customer requirements, from non-value-added activities, which do not add value but consume resources and time.

By calculating the activity ratio, organizations can assess the proportion of time and resources spent on value-added activities versus non-value-added activities.

A higher activity ratio indicates that a greater portion of resources is dedicated to value-added activities, indicating improved efficiency and reduced waste.

Conversely, a lower activity ratio suggests a higher proportion of resources being utilized for non-value-added activities, indicating potential areas for improvement and waste reduction.

The activity ratio serves as a valuable diagnostic tool for organizations to identify process inefficiencies, bottlenecks, and areas for improvement. By analyzing the activity ratio, organizations can streamline their processes, eliminate waste, and optimize resource allocation to enhance overall productivity and customer value.

To know more about value stream refer here:

https://brainly.com/question/32695907

#SPJ11

Answer:

5/7

Step-by-step explanation:

Billy experienced a rate of catfish to toral fish of 10/14. This is 5/7. So if this rate continues, he could expect the probability of catching a catfish to be : 5/7

Parabolas are used to represent quadratic equations

The equation of the parabola is: \(y = 3(x - 1)^2 +4\)

The equation of a parabola is:

\(y = a(x - h)^2 + k\)

Where (h,k) represents the vertex.

The vertex is given as:

(h,k) = (1,4)

So, we have:

\(y = a(x - 1)^2 +4\)

The parabola opens up.

So, the value of a is positive (say a = 3)

So, we have:

\(y = 3(x - 1)^2 +4\)

Hence, the equation of the parabola is: \(y = 3(x - 1)^2 +4\)

Read more about parabolas at:

https://brainly.com/question/4061870

Compute the Gaussian density for the following cases. (a) x=0, m=0, s-1. Give the name of question5a (b) x-2, m=0, s-1. The value of the account on January 1, 2021, would be $2,331.57.

To calculate the value of the account on January 1, 2021, we need to consider the compounding interest for each year.

First, we calculate the value of the initial deposit after three years (12 quarters) using the formula for compound interest:

Principal = $1,000

Rate of interest per period = 8% / 4 = 2% per quarter

Number of periods = 12 quarters

Value after three years = Principal * (1 + Rate of interest per period)^(Number of periods)

                           = $1,000 * (1 + 0.02)^12

                           ≈ $1,166.41

Next, we calculate the value of the additional $1,000 deposit made on January 1, 2019, after two years (8 quarters):

Principal = $1,000

Rate of interest per period = 2% per quarter

Number of periods = 8 quarters

Value after two years = Principal * (1 + Rate of interest per period)^(Number of periods)

                         = $1,000 * (1 + 0.02)^8

                         ≈ $1,165.16

Finally, we add the two values to find the total value of the account on January 1, 2021:

Total value = Value after three years + Value after two years

                ≈ $1,166.41 + $1,165.16

                ≈ $2,331.57

Therefore, the value of the account on January 1, 2021, is approximately $2,331.57.

Learn more about value  here: brainly.com/question/9796766

#SPJ11

Answer:

We love mathematics essays

Step-by-step explanation:

If bullies disappeared for a day, the bullied kids would be ecstatic. (people like me) No more getting teased about being a nerd, makeup, clothes, social life, family life etc

Answer:

n=56

Step-by-step explanation:

choose as brinlest

Answer:

n=−56

Step-by-step explanation:

The cost of an adult ticket is $80, and the cost of a child ticket is $50.

Let's denote the cost of an adult ticket as "A" and the cost of a child ticket as "C". We can set up a system of equations based on the given information:

For Family 1: 2A + 3C = 310 (equation 1)

For Family 2: 3A + 4C = 440 (equation 2)

We have two equations with two unknowns (A and C). We can solve this system of equations to find the values of A and C.

We can start by eliminating one variable. Let's multiply equation 1 by 3 and equation 2 by 2:

6A + 9C = 930 (equation 3)

6A + 8C = 880 (equation 4)

Now, subtract equation 4 from equation 3 to eliminate A:

(6A + 9C) - (6A + 8C) = 930 - 880

C = 50

Now, substitute the value of C back into equation 1 to solve for A:

2A + 3(50) = 310

2A + 150 = 310

2A = 310 - 150

2A = 160

A = 80

Therefore, the cost of an adult ticket is $80, and the cost of a child ticket is $50.

In conclusion, the price of an adult ticket is $80, and the price of a child ticket is $50.

For more questions on cost

https://brainly.com/question/2292799

#SPJ8

The amount of ice cream consumed in the United State would be 5,650 millions of pounds in 2028.

Based on the information provided about the mount of ice cream consumed in the United State, a quadratic equation that models the amount of ice cream consumed, in millions of pounds, since 2010 is given by;

y = 12(x - 6)² + 3922

Where:

By substituting the value of y, the number of years can be calculated as follows;

5,650 = 12(x - 6)² + 3922

5,650 - 3922 = 12(x - 6)²

1728 = 12(x - 6)²

144 = (x - 6)²

12 = x - 6

x = 12 + 6

x = 18 years.

Since 2010; 2010 + 18 = 2028.

Read more on quadratic equation here: brainly.com/question/4053652

#SPJ1

Answer: You have to multiply the weight by the precentage I think, which would be: 480 Pounds

Step-by-step explanation:

Answer:

12.8 pounds

Step-by-step explanation:

All you do is 8+60% = 12.8

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia