Question 10 of 10 6 st Answer here 5 E Given the two similar triangles above, what is the measure of side DE?​

Answer:

2:1

Step-by-step explanation:

So, let's say we have two tigers and one bear. If we want to talk about how many tigers we have compared to how many bears we have, we can say "the ratio of tigers to bears is 2 to 1."

What this means is that for every two tigers we have, we have one bear. So if we had four tigers, we would expect to have two bears, because we have two sets of two tigers each, and each set of two tigers corresponds (to be similar to something else) to one bear.

A ratio is just a way of comparing two things, like tigers and bears, by describing how much of one thing there is compared to the other thing. So when we say the ratio of tigers to bears is 2 to 1, we're saying that we have twice as many tigers as we do bears.

To calculate the effect of the pump, use the formula: P = Q * ΔP / η and To calculate the efficiency of the pump, use the formula: η = P / P_e. Use the data provided in the EXCEL file.

To solve the questions, follow these steps:

a) Calculate effects and efficiencies for all operating points:

1. To calculate the effect of the pump, use the formula: P = Q * ΔP / η, where P is the power of the pump, Q is the volume flow rate, ΔP is the pressure difference across the pump, and η is the efficiency of the pump.

2. To calculate the efficiency of the pump, use the formula: η = P / P_e, where P is the power of the pump, and P_e is the electrical power input to the pump.

3. Use the data provided in the EXCEL file to calculate the effects and efficiencies for all operating points.

b) Create a graph showing the delivery pressure (Pa) ("Pump 1") as a function of volume flow (Flow Rate Q) in (m3 / s):

1. Select the data for the delivery pressure (Pa) and volume flow (Flow Rate Q) in the EXCEL file.

2. Click on the "Insert" tab in EXCEL and select the "Scatter" chart option.

3. Choose the "Scatter with Straight Lines" option to create a graph showing the delivery pressure (Pa) as a function of volume flow (Flow Rate Q).

c) Create a graph showing motor power (Pump 1) (W) as a function of volume flow (Flow Rate) Q (l / s) on an axis and efficiency (Pump 1 (%) on a secondary axis:

1. Select the data for the motor power (Pump 1) (W) and volume flow (Flow Rate) Q (l / s) in the EXCEL file.

2. Click on the "Insert" tab in EXCEL and select the "Scatter" chart option.

3. Choose the "Scatter with Straight Lines" option to create a graph showing the motor power (Pump 1) (W) as a function of volume flow (Flow Rate) Q (l / s).

4. Add a secondary axis to the graph by clicking on the "Format" tab in EXCEL and selecting the "Secondary Axis" option.

5. Select the data for the efficiency (Pump 1 (%) and add it to the secondary axis of the graph.

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The algebraic equation that could be used to solve the problem is C. n + 4n = 2.10.

An algebraic equation is a mathematical statement that represents the equality of two expressions, using one or more variables, and mathematical operations such as addition, subtraction, multiplication, and division.

To solve this problem, we can use algebraic equations. Let's use the variable "n" to represent the number of nickels that Peggy has.

From the problem statement, we know that Peggy has four times as many quarters as nickels, which means she has 4n quarters.

We also know that she has a total of $2.10 in all. The value of her nickels is 0.05n dollars each, and the value of her quarters is 0.25(4n) = n dollars each. So we can set up the following equation:

0.05n + 0.25(4n) = 2.10

Simplifying this equation, we get:

0.05n + n = 0.525

1.05n = 2.10

n = 2

Therefore, Peggy has 2 nickels and 4(2) = 8 quarters.

Hence, the equation that could be used to solve the problem is C. n + 4n = 2.10.

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Therefore, the volume of the larger cylinder is 44.8. [tex]m^{3}[/tex], which is closest to option (c) 437.5. [tex]m^{3}[/tex].

Volume is a measure of the amount of space occupied by an object or substance. It is a three-dimensional quantity that is usually measured in cubic units, such as cubic meters (m³), cubic centimeters (cm³), cubic inches (in³), or gallons (gal).

Given by the question.

The ratio of the volumes of two similar solids is the cube of the ratio of their corresponding side lengths. In this case, the ratio of the scale factor of the cylinders is 5:2, so the ratio of their volumes is (5/2) ^3 = 125/8.

If the volume of the smaller cylinder is 28 m^3, then we can set up the following equation to solve for the volume of the larger cylinder:

(125/8) * V = 28

where V is the volume of the larger cylinder.

Simplifying this equation, we get:

V = 28 * (8/125) * 125

V = 224/5

V = 44.8 [tex]m^{3}[/tex]

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The equation that describe the number N bachelor's degrees awarded is N = 0.05t + 1.2 (a). The estimated number of bachelor's degrees to be awarded in 2023 is 1.85 million (b).

The practical sentence is "The number of bachelor's degrees awarded increases by 0.05 million, or 50,000, each year." (c). The graph, see the attachment.

(a) To find the equation describing the number N of bachelor's degrees awarded t years after 2010, we can use the formula for a linear equation: N = mt + b, where m is the slope and b is the y-intercept.

We can find the slope by using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. In this case, the two points are (2010, 1.2 million) and (2020, 1.7 million).

The y-intercept is the value of N when t = 0, which is the number of bachelor's degrees awarded in 2010, or 1.2 million. So the equation is:

(b) To estimate the number of bachelor's degrees to be awarded in 2023, we can plug in the value of t = 2023 - 2010 = 13 into the equation:

So the estimated number of bachelor's degrees to be awarded in 2023 is 1.85 million.

(c) A practical sentence expressing how the number of bachelor's degrees awarded changes yearly is: "The number of bachelor's degrees awarded increases by 0.05 million, or 50,000, each year."

(d) To graph the number of bachelor's degree line over the time period stated in (a), we can plot the two points (2010, 1.2) and (2020, 1.7) and draw a line through them.

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Part A: The height of the container is 5cm.

Part B: The cost of the coffee is $2.83.

Part C: The height of the container is 9cm.

Part D: The cost of the hot chocolate powder is $49.35.

What is volume of cylinder ?

The volume of a cylinder is the amount of space occupied by a cylindrical shape. It is given by the formula:

V = πr²h

where V is the volume, r is the radius of the circular base of the cylinder, and h is the height of the cylinder. The formula is derived by multiplying the area of the circular base (πr²) by the height (h) of the cylinder.

According to the question:
Part A:

Given that the container is a cylinder with a radius of 3cm, we can use the formula for the volume of a cylinder to find the height of the container. The formula for the volume of a cylinder is:

V = πr²h

where V is the volume of the cylinder, r is the radius of the cylinder, and h is the height of the cylinder.

Substituting the given values, we get:

45π = π(3)²h

Simplifying and solving for h, we get:

h = 5

Therefore, the height of the container is 5cm.

Part B:

The volume of the container is 45π cm³ and the cost of coffee is $0.02 per cubic centimeter. Therefore, the total cost of the coffee is:

Total cost = Volume x Cost per unit volume

Total cost = 45π x $0.02

Total cost = $0.90π

Rounding to two decimal places, we get:

Total cost = $2.83

Therefore, the cost of the coffee is $2.83.

Part C:

Given that the container is a cylinder with a radius of 5cm, we can use the same formula for the volume of a cylinder to find the height of the container. Substituting the given values, we get:

225π = π(5)²h

Simplifying and solving for h, we get:

h = 9

Therefore, the height of the container is 9cm.

Part D:

The volume of the container is 225π cm³ and the cost of hot chocolate powder is $0.07 per cubic centimeter. Therefore, the total cost of the hot chocolate powder is:

Total cost = Volume x Cost per unit volume

Total cost = 225π x $0.07

Total cost = $15.75π

Rounding to two decimal places, we get:

Total cost = $49.35

Therefore, the cost of the hot chocolate powder is $49.35.

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The number which is a cube number, an odd number, middle digit is prime and is of less than 6 digit is 1331.

The only number that satisfies all the given conditions is 1331.

The number 1331 is a cube number because it is 11 to the power of 3,

which is written as ⇒ (11 × 11 × 11 = 1331).

The number 1331 is also a square number because it is 11 to the power of 2, which means

⇒ (11 × 11 = 121), and 121 is a square number.

The number 1331 is not divisible by 2, so it is an odd number.

The middle digit of the number 1331 is 3, which is a prime number.

And also, the number 1331 has less than 6 digits.

Therefore, the required number is 1331.

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The given question is incomplete, the complete question is

I am a cube number, a square number, an odd number ,my middle digit is prime and i have less than 6 digits, Find that number.

The solution for \( X \) is \( X = (A - D C)^{-1} D B \).

Assume \( A, B, C, D \), and \( X \) are \( n \times n \) matrices, and assume invertibility of matrices wherever needed. Then, the equation \( A X(B+C X)^{-1}=D \) can be solved for \( X \) by following these steps:

Step 1: Multiply both sides of the equation by \( (B+C X) \) to get rid of the inverse:
\( A X = D(B+C X) \)

Step 2: Distribute the \( D \) on the right side of the equation:
\( A X = D B + D C X \)

Step 3: Rearrange the equation to isolate \( X \) on one side:
\( A X - D C X = D B \)

Step 4: Factor out \( X \) on the left side of the equation:
\( (A - D C) X = D B \)

Step 5: Multiply both sides of the equation by the inverse of \( (A - D C) \) to solve for \( X \):
\( X = (A - D C)^{-1} D B \)

Therefore, the solution for \( X \) is \( X = (A - D C)^{-1} D B \).

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Answer:

denote the time by T , distance by S , and the speed by V. We have that S = 7150km, V = 780 km/hr , T= ?.. T = S:V = 7150 : 780 = 9.17

Answer is T = 9.17 hour

The dataset's median, which has a value of 82 and a total of 11 values, is the sixth figure.

When a dataset is ordered from smallest to largest, the median, a measure of central tendency, shows the middle value of the dataset. It is frequently used as a more reliable substitute for the mean, which can be vulnerable to anomalies in the data with extremely high or low values. We must first sort the numbers in a dataset from smallest to largest before we can determine the median. The median is just the middle value when the dataset has an odd number of numbers. For instance, the median, or middle number, in the dataset "2, 5, 7, 10, 12" is 7.

given

Values that are noticeably higher or lower than the remainder of the dataset are found using the fences.

Step 1: Sort the information by size, starting from the smallest:

[tex]54, 72, 75, 81, 81, 82, 83, 83, 83, 85, 100[/tex]

Step 2: Calculate the middle

The dataset's median represents its middle number. The median is the sixth number in the dataset, which contains 11 values total:

Average: 82

Step 3: Determine the first and third quartiles (Q1 and Q3, respectively):

The medians for the dataset's lower and upper halves are Q1 for the lower part and Q3 for the upper. We don't use the median value to determine Q1 and Q3 because the dataset has an odd amount of values.

54, 72, 75, 81, 81 in the bottom half.

Top half: 83, 83, 83, 83, 85, and 100

Q1 = 75 for the bottom half's median.

Q3 = 83 for the top half's median.

The dataset's median, which has a value of 82 and a total of 11 values, is the sixth figure.

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As a result, there is a 6% sales tax.

Percentages is a relative figure used to represent hundredths of a quantity. Because one percent (symbolised as 1%) represents one hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified. percentage. Percentile is a related topic in mathematics.

The difference in sales tax is the price of the snowboarder with tax versus the price of the snowboarder without tax.

Sales tax therefore equals $848 - $800 = $48.

We need to multiply the result by 100 to get the sales percentage of tax, which we can then divide by the price of the snowboard before taxes.

Sales tax percentage = (Sales tax / Cost without tax) x 100

= ($48 / $800) x 100

= 0.06 x 100

= 6%

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Answer:Latasha should ask her mom for help

Step-by-step explanation:

Based on the ratio of red to white paint in making pink paint of 1:3, the total cost to Robert to buy enough paint to make 12 liters is $54.

The Ratio refers to the relative size of one quantity compared to another.

Ratios are expressed in standard ratio form using (:) with one value in relation to another.

Ratios can also be depicted in percentages, fractions, and decimals.

The Ratio of mixing red and white paint = 1:3

The sum of ratios = 4 (1 + 3)

To mix 12 liters of pink paint, the quantity of red paint = 3 liters (12 x 1/4)

To mxi 12 liters of pink paint, the quantity of white paint required = 9 liters (12 x 3/4)

Cost of red paint per 500ml = £5

The cost of 1 liter of red paint = £10 (£5 x 2)

The total cost of 3 liters of red paint = £30 (£10 x 3)

Cost of white paint per 3 liters = £8

The total cost of 9 liters of white paint = £24 (£8 x 9/3)

The total cost of 12 liters of pink paint mixture = £54 (£30 + £24)

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Answer:

760 students

Step-by-step explanation:

divide 228 ÷ 30%

30% = 0.30

228 ÷ 0.30 = 760

The value of the painting at t = 4 is $400 (V(4) = $400) and the value of the painting at t = 6 is $800 (V(6) = $800).

To find the value of the painting at t = 4 and t = 6, we can simply plug in these values into the function V(t) = 100 • 2^t/2, for t >= 0 where t is the number of years since the painting was purchased, and V(t) is its value (in dollars) at time t, and simplify.

For t = 4, we have:
V(4) = 100 • 2^4/2
V(4) = 100 • 2^2
V(4) = 100 • 4
V(4) = 400

For t = 6, we have:
V(6) = 100 • 2^6/2
V(6) = 100 • 2^3
V(6) = 100 • 8
V(6) = 800

Therefore, V(4) = $400 and V(6) = $800.

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The maximum number of sports drinks that can be purchased for $80 is 90 when they are priced at $0.70 per drink. (option B)

Let's start by finding the number of sports drinks that can be purchased for $80 when they are priced at $0.80 per drink.

The price of each drink is $0.80, and the shipping and handling cost is $10.

Let x be the number of sports drinks that can be purchased for $80:

0.80x + 10 = 80

Subtracting 10 from both sides:

0.80x = 70

Dividing both sides by 0.80:

x = 87.5

Since we cannot purchase a fraction of a sports drink, we must round down to the nearest whole number, which is 87.

Now let's check if we can purchase more sports drinks for $80 when they are priced at $0.70 per drink.

The price of each drink is $0.70, and the shipping and handling cost is $17.

Let y be the number of sports drinks that can be purchased for $80:

0.70y + 17 = 80

Subtracting 17 from both sides:

0.70y = 63

Dividing both sides by 0.70:

y = 90

Since we cannot purchase a fraction of a sports drink, we must round down to the nearest whole number, which is 90.

Therefore, the maximum number of sports drinks that can be purchased for $80 is 90 when they are priced at $0.70 per drink.

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The dependent variable and independent variable in the 15th question is

t = dependent and m = independent variable.

A variable is a quantity that may change within the context of a mathematical problem or experiment.

Given is a statement, The temperature, t, of water and the number of minutes, m, the water is in the freezer, we need to identity the dependent variable and independent variable for this statement,

Independent variable :-

It is a variable that doesn't change by the other variables.

Dependent variable :-

The dependent variable is the variable that is used for tested in an experiment.

Here, the temperature of the water is dependent on the number of minutes it has been kept in the freezer,

So, the temperature of the water is the dependent variable and the number of minutes it has been kept in the freezer is the independent variable.

Hence, the dependent variable and independent variable in the 15th question is t = dependent and m = independent variable.

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The question 17 is not completely mentioned

Answer:

To compare Arthur's long jump to the record, we need to convert both measurements to the same unit. Let's convert both measurements to inches:

Record: 22 ft 6 3/4 in = (22 x 12) + 6 + 3/4 = 270 + 6 + 0.75 = 276.75 in

Arthur's jump: 22 ft 5 1/2 in = (22 x 12) + 5 + 1/2 = 270 + 5 + 0.5 = 275.5 in

To determine how much farther Arthur needs to jump to break the record, we subtract Arthur's jump distance from the record distance:

Record distance - Arthur's jump distance = 276.75 in - 275.5 in = 1.25 in

However, we are told that long jumps are measured to the nearest quarter inch. Therefore, we need to round the difference to the nearest quarter inch. Since 1.25 inches is closer to 1.25 than it is to 1.5, we round down to the nearest quarter inch. This gives us:

1.25 in ≈ 1.25/4 = 0.3125 quarters ≈ 0.25 quarters

Therefore, Arthur needs to jump an additional 0.25 quarters (or 1/16 of an inch) to break the record.

25344 ft

We can use the conversion factors to convert 8 kilometers to another measure.

From the given conversion factors, we know that:

1 km ≈ 0.6 mi

1 mi = 5,280 ft

So, to convert 8 kilometers to feet, we can first convert it to miles and then convert miles to feet:

8 km x 0.6 mi/km = 4.8 miles

4.8 miles x 5,280 ft/mile = 25,344 ft

Therefore, 8 kilometers is equivalent to 25,344 feet.

The answer is option (C) 25,344 ft

We have that, given the equation (x)/(7)+(x)/(9)=(9)/(14) we will get as an answer x = 567/224

To solve the equation (x)/(7)+(x)/(9)=(9)/(14), we need to find the common denominator of the fractions on the left-hand side of the equation. The common denominator of 7 and 9 is 63, so we can multiply each fraction by the appropriate factor to get the common denominator:

[tex](x)/(7) * (9)/(9) + (x)/(9) * (7)/(7) = (9)/(14)[/tex]

[tex](9x)/(63) + (7x)/(63) = (9)/(14)[/tex]

Now we can combine the numerators on the left-hand side of the equation:

[tex](16x)/(63) = (9)/(14)[/tex]

To isolate the variable x, we can cross-multiply and then divide by the coefficient of x:

[tex](16x)(14) = (9)(63)[/tex]

[tex]224x = 567[/tex]

[tex]x = 567/224[/tex]

To check our answer, we can plug it back into the original equation and simplify:

[tex](567/224)/(7) + (567/224)/(9) = (9)/(14)[/tex]
[tex](567/224) * (1/7) + (567/224) * (1/9) = (9)/(14)(567/1568) + (567/2016) = (9)/(14)(1275752 + 1140480)/(3167232) = (9)/(14)(2416232)/(3167232) = (9)/(14)(9)/(14) = (9)/(14)[/tex]

Since both sides of the equation are equal, our answer is correct.

Answer: [tex]x = 567/224[/tex]

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Answer:

864 cards

Step-by-step explanation:

Goal: 15 set of cards

*72 cards in a set*

15 x 72 = 1080

15 sets of cards = 1080 cards in total

However Kareem so far has 216 cards.

To find out how much more cards Kareem need to reach his goal, you do the following:

1080 - 216 = 864

Kareem needs 864 more cards to reach his goal.

hope this helped....

Answer:

Step-by-step explanation:

A is y=x+4

b is y=14

The first four terms of the sequence generated by g_(1)=(1)/(2) g_(n)=6g_(n-1), for all integers n>=2 are (1/2), 3, 18, and 108.

The first four terms of the sequence generated by g_(1)=(1)/(2) g_(n)=6g_(n-1), for all integers n>=2 are (1/2), 3, 18, and 108.

To find the first four terms of the sequence, we can use the given formula and plug in the values for n.

For the first term, n=1, so we use the formula g_(1)=(1)/(2) to get the first term, which is (1/2).

For the second term, n=2, so we use the formula g_(n)=6g_(n-1) and plug in the value for n and the value of the first term for g_(n-1):

g_(2)=6g_(2-1)=6g_(1)=6(1/2)=3

For the third term, n=3, so we use the same formula and plug in the value for n and the value of the second term for g_(n-1):

g_(3)=6g_(3-1)=6g_(2)=6(3)=18

For the fourth term, n=4, so we use the same formula and plug in the value for n and the value of the third term for g_(n-1):

g_(4)=6g_(4-1)=6g_(3)=6(18)=108

Therefore, the first four terms of the sequence are (1/2), 3, 18, and 108.

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i) If σ > 0 is unknown, then the distribution of Y is in a location-scale family with the parameters: Location parameter: α and Scale parameter: γ
ii) If σ > 0 is known, then the distribution of Y is in an exponential family with the parameters: Shape parameter: α and Scale parameter: σγ

(i) If σ > 0 is unknown, then the distribution of Y is in a location-scale family. This is because the distribution of Y can be expressed as a linear transformation of the distribution of X. Specifically, Y = σ log X = σ(log X - E[log X]) + E[log X], where E[log X] is the expected value of log X. This is the form of a location-scale family, with location parameter E[log X] and scale parameter σ.

(ii) If σ > 0 is known, then the distribution of Y is in an exponential family. This is because the distribution of Y can be expressed as an exponential family distribution with natural parameter -1/σ and sufficient statistic log X. Specifically, the probability density function of Y can be written as f_Y(y) = f_X(e^(y/σ)) * (1/σ) * e^(y/σ) = (1/σ) * e^(-(y-E[log X])/σ) * f_X(e^(E[log X]/σ)), where f_X is the probability density function of X. This is the form of an exponential family distribution, with natural parameter -1/σ and sufficient statistic log X.

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Malcom ate 7/10 of the total chocolates.

Amount is a term used to describe the quantity of something, usually a numerical value. It can refer to money, a number of people or objects, or a measurement such as weight or volume. Amounts can also be used to represent a value of something abstract, such as time, effort, or emotion. Amounts are typically quantified, meaning they can be easily compared to other amounts.

The fraction of chocolates that Malcom ate is 5/7 of the milk chocolates and 2/5 of the dark chocolates, so the total fraction of chocolates that Malcom ate is (5/7) + (2/5) = 7/10. Therefore, Malcom ate 7/10 of the total chocolates.

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Answer:

Let x be the score Natasha needs to earn on her next test to reach an average of 90%.

To find x, we can use the formula for the average:

average = (sum of scores) / (number of scores)

We know that Natasha has taken 5 tests so far, with scores of 94%, 89%, 88%, 92%, and 85%. We can plug these values into the formula and solve for x:

90% = (94% + 89% + 88% + 92% + 85% + x) / 6

Multiplying both sides by 6, we get:

540% = 448% + x

Subtracting 448% from both sides, we get:

92% = x

Therefore, Natasha needs to earn a score of at least 92% on her next test to reach an average of 90%.

Answer:

Step-by-step explanation:

where is the image don't see

D and F are functions on an appropriate domain. A, C, and D are functions that take in a real number and output a real number, so they are valid functions on the domain of real numbers.

A domain is a set of names or IP addresses that are associated with a particular website or web server. It is what allows users to access a website's content using a web browser. Domains are typically purchased from a domain registrar and can be used to host websites, email accounts, and other services.

B and F are invalid functions because they take in a real number and output something that is not a real number.

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The properties of Rhombus are:

Explain about parallelogram ?

A parallelogram is a quadrilateral with two pairs of parallel sides. The opposite sides of a parallelogram are equal in length and parallel to each other. The opposite angles are also equal in measure.

Properties of a parallelogram:

Opposite sides are parallel.

Opposite sides are equal in length.

Opposite angles are equal in measure.

Consecutive angles are supplementary, i.e. their sum is 180 degrees.

Diagonals bisect each other.


Given by the question:

A rhombus, also called a diamond, is a type of parallelogram in which all four sides are equal in length. A rhombus also has the following properties:

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Answer:

a = 3, b = 9

Step-by-step explanation:

A scale factor is the number that you multiply each side of a shape to enlarge it. A scale factor of 3 means that each side of the new shape is three times the size of the original.

If the new shape is 3 times the size of the original, then we can take the side lengths (3 and 1) and multiply them by 3.

Therefore, the length of a is 3, whereas the length of b is 9.