There are 13 girls and 12 boys in a zoom dass. Of these students, 9 girls and 5 boys always have their camera's on. What percentage of the students have their camera's on? (6.5B) zoom​

Answer:

A is false, B is true, C is true, D is true, E if false, T is true,.

Step-by-step explanation:

From the problem 5-8  person should include 5 and 8.

There are 5-8 people including her

So A is false and B is true

Two cups of lemonade for each person So C is true.

4 scoops for each quart of water each quat = 4 cups hence D is ture

5≤n ≤8  so 2x5≤c≤2x8   10≤c≤1b so E is false

1=c  10≤1≤16 so T is true

After running the pump for 4 hours, the NTU measurement would be approximately 0.52.

To determine the NTU measurement after running the pump for 4 hours, we need to consider that the pump reduces the NTU by 10% each hour.

Here's the chart with the NTU values for each hour, rounded to the nearest hundredth:

Hours | NTU

0 | 0.80

1 | 0.72 (0.80 * (1 - 0.10) = 0.80 * 0.9)

2 | 0.65 (0.72 * (1 - 0.10) = 0.72 * 0.9)

3 | 0.58 (0.65 * (1 - 0.10) = 0.65 * 0.9)

4 | 0.52 (0.58 * (1 - 0.10) = 0.58 * 0.9)

After running the pump for 4 hours, the NTU measurement would be approximately 0.52.

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The researcher should use regression analysis, as a statistical tool,  because the researcher is working with two variables measured.

Regression analysis is the most widely used statistical tool that can be used to find out the relation between a set of variables. Thus, from its results, it is possible to analyze the trend or make predictions.  In a regression analysis, it is considered the relationships between two or more variables and it is very similar to correlation.

Like the researcher is working with two variables measured at the interval level. The researcher should use regression analysis.

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Answer:

The value of q is 40

Step-by-step explanation:

In the quadratic equation ax² - bx + c = 0, where

a = 1

b is the sum of its two roots

c is the product of its two roots

Assume that the roots of the quadratic equations are x and y

∵ The quadratic equation is x² - 14x + q = 0

∴ a = 1 , b = 14 and c = q

∵ b is the sum of its two roots

∵ Its roots are x and y

∴ x + y = 14 ⇒ (1)

∵ The difference between the roots is 6

∴ x - y = 6 ⇒ (2)

Now we have a system of equation to solve it

Add equations (1) and (2)

∴ 2x = 20

- Divide both sides by 2

∴ x = 10

Substitute the value of x in equation (1) or (2) to find y

∵ 10 + y = 14

- Subtract 10 from both sides

∴ y = 4

∵ c is the product of the two roots

∴ c = 10 × 4 = 40

∵ c = q

∴ q = 40

The value of q is 40

Answer:

y= =1/2x-8

Step-by-step explanation:

The possible values for f and g are -2, 2, -4, 4, -1, 1.

What is inequality?

A solution for an inequality in x is a number such that when we substitute that number for x we have a true statement. So, 4 is a solution for example 1, while 8 is not. The solution set of an inequality is the set of all solutions.

If fg^2 = 32, then either fg = ±4, ±2, or ±1. If f < 20 and g < 20, then the possible values for f and g are:

f = 2, g = 4

f = 4, g = 2

f = 1, g = 4

f = 4, g = 1

f = 2, g = 2

f = 1, g = 1

Hence, the possible values for f and g are -2, 2, -4, 4, -1, 1.

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Answer:

8 hours

Step-by-step explanation:

wait what is starting temperature?

Answer: 3.5y + 2.25y =345

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Subtract property of deviation becasue your subtracting 6y frrom both sides of the equation.

Step-by-step explanation:

1)Given: 12y - 40 - 4y = 6y - 18

2)Simplify by adding 12y + (-4y): 8y - 40 = 6y - 18

3)Subtract property of deviation: 8y -6y - 40 = 6y -6y - 18

2y - 40 = -18

Hope this helped!

Answer:

C. the addition property of equality

Step-by-step explanation:

True. depending on the circumstances, the dequeue method of our linkedqueue class sometimes throws the queueunderflowexception

The dequeue method of a LinkedQueue class throws a QueueUnderflowException when the queue is empty, and the user attempts to remove an element from it. This is because removing elements from an empty queue is not allowed and violates the basic properties of a queue data structure. Therefore, depending on the circumstances, the dequeue method may throw a QueueUnderflowException to indicate that the operation is invalid.

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The surface are of the figure that gives answers are:  Part A) is 178.98 in² and Part B) is  932 ft

Area Congruence Postulate: If two polygons (or plane figures) are congruent, then their areas are congruent. Area Addition Postulate: The surface area of a three-dimensional figure is the sum of the areas of all of its non-overlapping parts

Part 1) [surface area of a cone without base]=π*r*l

where r=3 in

l= slant height ----> 6 in

Surface area of a cone without base = π*3*6------> 56.52 in²

Surface area of a cylinder =π*r²+2*π*r*h------> only one base

r=3 in

h=5 in

Surface area of a cylinder =π*r²+2*π*r*h

Surface area of a cylinder =π*3²+2*π*3*5-----> 122.46 in²

[surface area of the composite figure]=56.52+122.46-----> 178.98 in²

In conclusion the answer for  Part A) is 178.98 in² and for

Part B)

Surface area of the composite figure

=12*16+2*12*7+2*16*7+5*12+5*16+13*16----> 932 ft²

Therefore, the answer for Part B is  932 ft

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Answer:

Finally, if 12n = -6, then n = -0.5

Step-by-step explanation:

If we have the following equation:

12n = -6

We can solve for n, dividing by 12 on both sides of the equation as:

\(\frac{12n}{12}=\frac{-6}{12}\)

Then, taking into account that  \(\frac{12}{12}\) is equal to 1 and \(\frac{-6}{12}\) is equal to -0.5, we can write the equation as:

\(\frac{12n}{12}=\frac{-6}{12}\\1n = -0.5\\n=-0.5\)

Finally, if 12n = -6, then n = -0.5

Answer: 13. 30

Step-by-step explanation:

13. Area = 18x * 10y = 180xy

Length = 6th

With ?

180xy = 6xy x width

180 x/6xy

Width = 30

14. 3^(9-5)= 3^4 = 81 the truck weighs 81 times as the driver

3^5

Answer:

The value of function at n = 7 is 78.

Step-by-step explanation:

Given function is:

c(n) = 50 + 4n

Here,

c represents the cost monthly cost of gym

n represents the number of visits to the gym

We have to find the value of c(7).

We will put n = 7 in the function.

Thus,

c(7) = 50 + 4(7)

c(7) = 50 + 28

c(7) = 78

Hence,

The value of function at n = 7 is 78.

The value of c(7) in the function c(n) = 50 + 4n is = 78

The function is defined as follows:

c(n) = 50 + 4n

where

function c is defined by the equation above

n is the number of visit

The function gives the monthly cost in dollars.

Therefore,

The value of c(7) can be found as follows:

c(7) = 50 + 4n

c(7) = 50 + 4(7)

c(7) = 50 + 28

c(7) = 78

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Answer:

boxes count from top to bottom

The measures given form 2 triangles.

Each triangle has a hypotenuse of 37 inch and a side length of 12 inches ( right triangle)

So, we have to find the measure of the missing side of the right triangle_

Apply Pythagorean theorem:

c^2= a^2+b^2

Where c is the hypotenuse (37) and a and b are the other legs of the triangle:

37^2 = a^2+12^2

Solve for a

1,369= a^2+144

1,369-144 = a^2

1,225 = a^2

√1225 = a

35=a

The TV is 35 inches tall.

The initial value of A is 3, The initial value of B is 2.25 and club B has a greater rate of change.

Each element of X receives exactly one element of Y when a function from one set to the other is used. The sets X and Y are collectively referred to as the function's domain and co-domain, respectively.

Given:

The graph of club A and the values of club B is given,

Calculate the initial value of A and B as shown below,

The initial value of A = 3,

The initial value of B = 2.25

Hence, A has a greater initial value,

Calculate the rate of change as shown below,

The rate of change for club A = 3.75 / 2.25

The rate of change for club A = 1.67

The rate of change for club B = 4 / 3

The rate of change for club B = 1.33

Thus, the rate of change is higher for club B.

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Answer:

The right hand side is as gollows

Step-by-step explanation:

first mouth

second liver

third Gallbladder

court Apendix

After solving the exponential function y = 12.5ˣ, the value of y = 1.

The formula for an exponential function is f (x) = ax, where x is a variable and an is a constant that serves as the function's base and must be bigger than 0.

The transcendental number e, or roughly 2.71828, is the most often used exponential function basis.

So, the exponential function:

y = 12.5ˣ

We know that x is 0.

The exponential function rule states that when the power is 0, the answer is always 1.

y = 12.5ˣ

y = 12.5⁰

y = 1

Therefore, after solving the exponential function y = 12.5ˣ, the value of y = 1.

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Correct question:

For this exponential function, what is the output value (y), when the input value (x) is O?

y = 12.5ˣ

The calculated volume of the model space is 1657.92 cubic inches

From the question, we have the following parameters that can be used in our computation:

The model space made from:

The volume of the model space is calculated as

Volume = Cone + Cylinder + Hemisphere

Using the volume formulas, we have

Volume = 1/3πr²h + πr²h + 2/3πr³

Substitute the known values in the above equation, so, we have the following representation

Volume = 1/3 * 3.14 * 6² * 8 + 3.14 * 6² * 8 + 2/3 * 3.14 * 6³

Evaluate

Volume = 1657.92

Hence, the volume of the model space is 1657.92 cubic inches

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Independent events are not affected by previous events, that is, the probability of a new event doesn't change from the previous event. However, disjoint sets mean they don't have any data in common, which means the intersection of such sets is impossible. In other words, the events are exclusive, if one occurs, then the other can't occur.

Having said that, we can deduct that scenario 1 represents an independent exclusive event because the occurrence of one event excludes the other. The main reason is that there's just one orange marble.

Answer:

x = 65

Step-by-step explanation:

50 = (20+40+x+52+60+63)/6

50 = (x+235)/6

300 = x+235

x = 65

By using Mai’s method, the skirt will cost $21.67, By using Elena’s method, the skirt will cost $21 and I think Mai’s method is correct.

(1) We need to find out how much the skirt cost if we use the Mai method. the Mai method is to multiply $30 by 0.80 and then we need to again multiply it with the result which can be given as,

= 30 × 0. 85 × 0. 85

= 21.67

Therefore, By using Mai’s method, the skirt will cost $21.67.

(2) We need to find out how much the skirt cost if we use Elena’s method. Elena’s method is to  multiply $30 by 0. 70 it can be given as,

= 30 × 0. 70

=$21

Therefore, By using Elena’s method, the skirt will cost $21.

(3) I think Mai’s method is correct because she took one 15% discount first and then considered the second discount which is given by the shop. whereas  Elena considered the two discounts at once and calculated it as 30% where the shop offered a 15% discount on the dress and then added a second discount on the purchase cost or bill amount that is why Mai’s method is correct.

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0.0764 is the probability that the scores differ by 5 or more points in either direction

The word "probability" derives from the Latin word "probitatem," which means "credibility, likelihood," from the noun probabilis in the 14th century (see probable). The phrase was first used in a mathematical meaning in 1718.

A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.

According to the information, the mean and standard deviation of "X" are:

μ(X) = 24

σ (X) = 2

We have to find the probability the scores differ by 5 or more points on either direction.

Consider X₁ and X₂ as the random variable, which showing the scores of Leon and Fred.

D = X₁ - X₂

According to the information the two scores are independent

The mean of μ(D) = 0

The standard deviation σ(D) = 2.828

Let's standardize D = -5

z = [x - μ(D)] /  σ(D)

z = - 1.77

Let's standardize D = 5

z = [x - μ(D)] /  σ(D)

z = 1.77

Using a table of typical normal probabilities as a guide:

= P (D ≤ -5) or P (D ≥ 5)

= P (z ≤ -1.77) + P (z ≥ 1.77)

= P (z ≥ 1.77) + P (z ≥ 1.77)

= 2P (z ≥ 1.77)
= 2(1 - P (z ≤ 1.77))

= 2 (1 - 0.9618)

= 0.0764

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Answer:

Time 10 = $40 Savings

Time 15 = $60 Savings

Time 25 = $100 Savings

Step-by-step explanation:

Answer:

10/40 ,15/60 ,25/100

Step-by-step explanation:

A polynomial can have as many real zeros as its degree, hence one with three degrees can have as many as three zeros.

The roots of an equation are the solution of that equation since an equation consists of hidden values of the variable to determine them by different processes and then the resultant is called roots.

A polynomial with n degrees can have as many variables as n in total.

For example, a quadratic equation ax² + bx + c = 0 is a two-degree equation so it has a maximum of two roots or zeros.

A polynomial with the given degree structure will have exactly 3 roots because it has 3 degrees.

Hence "The maximum number of real zeros in a polynomial will be same as its degree thus 3 degrees will have 3 zeros".

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The correct option H0: µD ≥ 0,HA: µD < 0, is used to determine whether the first population's mean is lower than the second population's mean, a set of hypotheses.

Paired testing, commonly referred to as auditing, is a practical and easy technique to determine whether and how discrimination is present.

Thus, µD ≥ 0,HA: µD < 0, is used to determine whether the first population's mean is lower than the second population's mean, a set of hypotheses.

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