I need some help please

Answer:

x = 4

Step-by-step explanation:

4x + 17° + 57° + 90° = 180°

4x + 164 = 180

4x = 180 – 164

4x= 16

x = 16/4

x = 4

(or)

4x + 17 + 57 = 90

4x + 74 = 90

4x = 16

x = 4

x = 4

Thank you have a magnificent day ahead...

Crown (brainliest) please.

Answer:

A = 55 degrees

B = 35 degrees

C = 90 degrees

side BA = 4.8 units

side AC = 2.7 units

side BC = 3.9 units

Step-by-step explanation:

Hello!

The things we know:

A = 55 degrees

C = 90 degrees

side BA = 4.8 units

AC = adjacent side

BC = opposite side

AB = hypothenuse

B = 180 - 55 - 90 degrees

B = 35 degrees

Let's find side AC

we can use the cos of theta.

cos(55) = AC/4.8

multiply 4.8 on both sides.

4.8cos(55) = AC

AC = 2.7 units

And now we just have to find BC

to calculate BC we can either use tangent or sin.

I will just use sin

sin(55) = BC/4.8

multiply 4.8 on both sides.

4.8sin(55) = BC

BC = 3.9

And now we know everything about the triangle

Hope I Helped!

6.28 = Question 11

and i can not solve for 12 sorry

Answer:

Question 11- 6.28 yards square

Interest is the amount of money added on an amount invested. He have doubled her investment after 18 years

The formula for calculating the compound interest is expressed as

A = P(1+r)^t

Given the following parameters

P = $500

r = 4%= 0.04

A= $1000  (doubled)

Substitute

1000 = 500(1+0.04)^t

2 = 1.04^t

t = ln2/ln1.04

t= 17.67 = 18years

Hence he have doubled her investment after 18 years

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Answer:

$992.00

Step-by-step explanation:

Where:

I = P x r x t

P is the principal amount, $800.00.

r is the interest rate, 6% per year, or in decimal form, 6/100=0.06.

t is the time involved, 4....year(s) time periods.

So, t is 4....year time periods.

To find the simple interest, we multiply 800 × 0.06 × 4 to get that:

The interest is: $192.00

Usually, now, the interest is added onto the principal to figure some new amount after 4 year(s),

or 800.00 + 192.00 = 992.00. For example:

If you borrowed the $800.00, you would now owe $992.00

If you loaned someone $800.00, you would now be due $992.00

If owned something, like a $800.00 bond, it would be worth $992.00 now.

The two triangles are said to be congruent by the SSS rule if all three sides of one triangle are equal to the corresponding three sides of the second triangle.

Segments, or "triangles," are three-sided plane enclosed figures that can be classified according to their sides and angles. The typical variations include isosceles, equilateral, scalene, etc. So what exactly are congruent triangles? Triangles are said to be in congruence when all corresponding sides and interior angles are congruent (of the same length).

The triangles will be the same size and shape, but they will appear to be mirror images of one another. Simply put, objects that appear to be identical when placed over their opposites or that are Xerox copies of one another are said to be congruent.

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Answer:

Step-by-step explanation:

He will actually need to wait for 12 weeks. And that is because if you look at the multiples of 6 and 4 and you'll notice that 12 is the lowest common multiple between them. So you start counting from 6 and 4 at the same time until you notice the LCM of these two numbers then on which ever you number you settle on is how long he will need to wait.

Answer: the exact answer is 9/4, the mixed number is  2 1/4

Step-by-step explanation:

Answer:

I guess it's D since BC= 132: 12 = 11 or both of the two places divided by 12

Answer:

960 (d)

Step-by-step explanation:

(1-0.6)x =384

0.4x =384

x= 960

The orthogonal curves to the family of curves \((x-c)^2 + y^2 = c^2\) are given by the equations \(x + y = k\) and \(x - y = k\), where \(k\) is a constant.

To find the orthogonal curves to the given family of curves, we first need to determine the gradient of the curves. Taking the derivative of \((x-c)^2 + y^2 = c^2\) with respect to \(x\), we obtain \(2(x-c) + 2yy' = 0\). Simplifying, we have \(y' = \frac{c-x}{y}\).

The orthogonal curves will have gradients that are negative reciprocals of the gradients of the original curves. So, the gradient of the orthogonal curves will be \(-\frac{y}{c-x}\).

Now, we can solve for the equations of the orthogonal curves. Using the general form of a straight line, \(y = mx + b\), we substitute the gradient \(\(-\frac{y}{c-x}\) to get \(-\frac{y}{c-x} = mx + b\).\) Simplifying, we have \(x + (m+1)y = c - mb\).

From this equation, we can obtain two sets of orthogonal curves by choosing different values for \(m\) and \(b\). Letting \(k = c - mb\), we have the equations \(x + y = k\) and \(x - y = k\), which represent two sets of orthogonal curves to the given family of curves.

In summary, the orthogonal curves to the family of curves \((x-c)^2 + y^2 = c^2\) are given by the equations \(x + y = k\) and \(x - y = k\), where \(k\) is a constant. These curves intersect the original curves at right angles, forming orthogonal pairs.

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Answer:

Step-by-step explanation:

-Start by distributing the 2, -2(3m+1/2).

-Getting -6m-1, your equation should look like -40-6m-1=7m-2

-Combine -40 and -1 to get -41, and then add the -6m to the other side.

-The equation should look like -41=13m-2. Add the 2 to the -41 to get -39.

-Now, we have -39=13m. divide both sides by 13 to get m=-3.

There are 6 values of the displacement of the string at x = 5.0 m at 1 s intervals from t = 0 s to t = 6 s.

All the numbers between two specific integers are referred to as an interval. All actual values between those two are included in this range. A set of real numbers known as an interval in mathematics contains all real numbers falling inside any two of the set's numbers. For instance, the interval containing 0, 1, and all integers in between is the set of values x satisfying 0 ≤x≤ 1.

Given

A snapshot graph at t = 0 s of two waves on a string approaching each other at 1 m/s.

The values of the displacement of the string at x = 5.0 m at 1 s intervals from t = 0 s to t = 6 s are,

At t = 0

s,=>Y₀= 0 cm

At t =1

s,=>Y₁= 0 cm

At t = 2

s,=>Y₂= 0 cm

At t =3

s,=>Y₃= 0 cm

At t =4

=>Y₄= 0 cm

At t = 5 s,

=>Y₅=0 cm

At t = 6

s,=>Y₆= 0 cm

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They help visualize the flow of control and data during runtime and aid in understanding the dynamic behavior of the system.

1. Relative benefit of an activity diagram and an SSD:

Activity Diagram:

- An activity diagram is a graphical representation that depicts the flow of activities or processes within a system or business process.

- It provides a visual representation of the workflow, showing the sequence of actions, decision points, and concurrent activities.

- Activity diagrams are useful for modeling and analyzing complex processes, identifying bottlenecks, and understanding the overall structure and behavior of a system.

SSD (System Sequence Diagram):

- An SSD is a type of behavioral diagram in UML (Unified Modeling Language) that represents the interaction between an actor (external entity) and a system.

- It shows the sequence of messages exchanged between the actor and the system, along with the corresponding system responses.

- SSDs are particularly useful for capturing the external behavior of a system and understanding the system's responses to different input scenarios.

The relative benefit of an activity diagram and an SSD depends on the specific context and purpose of the modeling. Generally:

- Activity diagrams are well-suited for modeling complex processes, such as business workflows or system behaviors with multiple concurrent activities. They provide a high-level overview of the process flow and can help identify bottlenecks and inefficiencies.

- SSDs, on the other hand, focus on the interaction between an actor and a system. They are useful for capturing the external behavior of a system, understanding the messages exchanged, and specifying the expected responses. SSDs are often used in requirements engineering and system analysis.

Both activity diagrams and SSDs are valuable tools in system modeling and analysis. Their benefits depend on the specific modeling needs, the level of detail required, and the stakeholders involved in the project.

2. Component parts of a message notation:

In message notation, which is commonly used in sequence diagrams and communication diagrams in UML, the following are the component parts:

- Lifeline: A lifeline represents an individual participant or object in the system. It is depicted as a vertical line with a labeled name at the top.

- Message: A message represents a communication or interaction between lifelines. It indicates the flow of information, control, or signals between objects. Messages can be synchronous or asynchronous, represented by arrows connecting lifelines.

- Activation: An activation represents the period during which an object is performing a particular operation or carrying out a specific task. It is depicted as a box or vertical bar on the lifeline, indicating the duration of the activity.

- Return Message: In cases where a method or operation returns a value or control back to the calling object, a return message is used. It represents the response from the called object to the calling object.

- Self-Message: A self-message represents a message sent from an object to itself. It is useful for illustrating internal processes or recursive behavior within an object.

- Parameters: Messages can include parameters or arguments that are passed between objects during communication. Parameters are typically represented as name-value pairs within the message notation.

These component parts work together to depict the sequence of interactions and communication between objects or participants in a system. They help visualize the flow of control and data during runtime and aid in understanding the dynamic behavior of the system.

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the optimal solution to maximize Z is x1 = 25 and x2 = 0, with Z = 3000.

To solve the given linear programming model graphically, we need to plot the feasible region and identify the corner points to find the optimal solution. Here's the step-by-step process:

1. Plot the constraints:

  - Plot the line x1 = 40 (vertical line at x1 = 40).

  - Plot the line x2 = 10 (horizontal line at x2 = 10).

  - Plot the line 20x1 + 10x2 = 500 (which can be rewritten as 2x1 + x2 = 50).

  - Shade the feasible region that satisfies all the constraints.

2. Identify the corner points:

  - Determine the coordinates of the corner points where the boundary lines intersect.

3. Evaluate the objective function:

  - Calculate the value of the objective function Z = 120x1 + 80x2 for each corner point.

4. Determine the optimal solution:

  - Select the corner point that maximizes the objective function Z.

Here's the graphical representation of the feasible region:

      |

 40   |           C

      |          /

      |         /

      |        /

      |       /

      |      /

      |     /    Feasible Region

 10   |_____/_________________

      0   10  20  30  40  50

            0`

The corner points of the feasible region are:

A: (0, 0)

B: (0, 10)

C: (25, 0)

D: (20, 5)

Now, we evaluate the objective function Z = 120x1 + 80x2 for each corner point:

Z(A) = 120(0) + 80(0) = 0

Z(B) = 120(0) + 80(10) = 800

Z(C) = 120(25) + 80(0) = 3000

Z(D) = 120(20) + 80(5) = 2400

From the above calculations, we can see that the maximum value of Z occurs at point C: (25, 0).

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The total area of the shaded region bounded by the given curves is approximately 4.33 square units.

The given curves are x = 6y² - 6y³ and x = 4y² - 4y. The shaded area is formed between these two curves.

Let’s solve the equation 6y² - 6y³ = 4y² - 4y for y.

6y² - 6y³ = 4y² - 4y

2y² - 2y³ = y² - y

y² + 2y³ = y² - y

y² - y³ = -y² - y

Solving for y, we have:

y² + y³ = y(y² + y) = -y(y + 1)²

y = -1 or y = 0. Therefore, the bounds of integration are from y = 0 to y = -1.

The area between two curves can be calculated as follows:`A = ∫[a, b] (f(x) - g(x)) dx`where a and b are the limits of x at the intersection of the two curves, f(x) is the upper function and g(x) is the lower function.

In this case, the lower function is x = 6y² - 6y³, and the upper function is x = 4y² - 4y.

Substituting x = 6y² - 6y³ and x = 4y² - 4y into the area formula, we get:`

A = ∫[0, -1] [(4y² - 4y) - (6y² - 6y³)] dy

`Evaluating the integral gives:`A = ∫[0, -1] [6y³ - 2y² + 4y] dy`=`[3y^4 - (2/3)y³ + 2y²]` evaluated from y = 0 to y = -1`= (3 - (2/3) + 2) - (0 - 0 + 0)`= 4.33 units² or 4.33 square units (rounded to two decimal places).

Therefore, the total area of the shaded region bounded by the given curves is approximately 4.33 square units.

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Answer:

a it has to equal 180

I need this to be 20 letters long so I'm doing dis

Answer:

A is the right answer

Step-by-step explanation:

A triangles angles equal 180° like if you add up all the ablngles no matter what size of the shape. So to find the answer you add the angles you know so in this case 61+69 which equals 130 so then you subtract 180 with 130 to get you 180. And if you want to make sure you are right you can add up all the angles which is 69+61+50=180

Hope this helps :)

The algebraic expression for the scenario is 15 + x = 60

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

Amount saved up = $15

Cost of item = $60

Amount gifted by your grandma = x

The above parameters means that the mathematical statement is an equation statement

So, we have the following representation

Amount saved up + Amount gifted by your grandma = Cost of item

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

15 + x = 60

Hence, the algebraic expression is 15 + x = 60

The question does not require that the equation be solved

However, when it is solved, we have:

15 + x = 60

Subtract 15 from both sides

x = 45

So, the amount is 45

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The value of m and n that shows that point p(m,5-n) when reflected on line y=0 is m = 3, n = 3.

Transformation is the movement of a point from its initial point to a new location. Types of transformation are reflection, rotation, translation and dilation.

The rule for the reflection over the line y = 0 (x axis) is (x, y) ⇒ (x, -y)

If the point p(m,5-n) is reflected on line y=0, this would give (m, -(5 - n)) = p'(2m-3,2n-8). Hence:

2m - 3 = m

m = 3

Also:

-(5 - n) = 2n - 8

-5 + n = 2n - 8

n = 3

The value of m and n that shows that point p(m,5-n) when reflected on line y=0 is m = 3, n = 3.

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The argument "All cats are mammals. I am a mammal. Therefore, I am a cat" is fallacious and can be shown as such using set theory and a Venn diagram.

Let's represent the sets using a Venn diagram:

   -------------

   |    Mammals   |

   -------------

       /       \

      /         \

     /           \

----          ----

| Cats |        | You |

----          ----

In the Venn diagram, the circle labeled "Mammals" represents the set of all mammals, and the circle labeled "Cats" represents the set of all cats. The region where the circles overlap represents the set of mammals that are also cats.

According to the argument, "All cats are mammals," which means that the set of cats is entirely contained within the set of mammals. This relationship is correctly represented in the Venn diagram.

The argument also states, "I am a mammal," which means that you are part of the set of mammals. In the Venn diagram, your position would be within the circle labeled "Mammals" but outside the circle labeled "Cats."

The fallacy occurs when the argument concludes, "Therefore, I am a cat." This conclusion is not valid because being a mammal does not automatically make you a cat. The Venn diagram clearly shows that there is a region within the set of mammals that is not within the set of cats.

To summarize, the fallacy in the argument arises from incorrectly inferring that being a mammal automatically implies being a cat. The Venn diagram visually demonstrates that being a mammal is a broader category that encompasses various animals, including cats, but being a mammal alone does not make one a cat.

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Answer:

d.90l

Step-by-step explanation:

For a normal distribution with mean 0 and standard deviation 1 the python line will be 0.627409464153

What is mean?

The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. It is known as the "average" and is the most widely used central tendency measure.

What is standard Deviation?

The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

Appropriate function and output are given below

import scipy.stats as st

print(st.norm.cdf(0.325,0,1)

0.627409464153

The python line will be 0.627409464153 for a normal distribution with a mean of 0 and a standard deviation of 1.

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using the euclidean model,  the sum of distances between qrs and its four vendors is g.14

What do you mean by the euclidean model?

A mathematical system known as Euclidean geometry is credited to the ancient Greek mathematician Euclid. It is detailed in his geometry textbook, the Elements. In Euclid's method, many more propositions (theorems) are derived from a small collection of axioms (postulates) that are intuitively attractive.

The distance of (0,0) is 0 ,similarly, distance from (2,0) is 2; (1,2) is 1 and (0,5) is 5 and (6,0) is 6.

the sum of all distances are (0+2+1+5+6) is 14.

Hence according to the euclidean model , the sum of all distances is 14.

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Answer:

Step-by-step explanation:

step one:

given data

blue fabric costs $9 a yard.

green fabric costs $13 a yard.

Let x represent the number of blue yards of fabric purchased and

let y represent the number of green yards of fabric purchased.

Step two:

The quilter needs at least 9.5 yards of fabric in total.

x+y>=9.5--------1

The quilter can spend up to $110 on fabric.

9x+13y<=110----2

from equation

x+y>=9.5

x=9.5-y

put x=9.5-y in equation 2 we have

9(9.5-y)+13y<=110----2

85.5-9y+13y=110

4y=110-85.5

4y=24.5

y=24.5/4

y=6.125

put y=6.125 in x=9.5-y to find x

x=9.5-6.125

x=3.375

Hence the quilt can purchase

3.375yards of  blue fabric

6.125yards of  green fabric

3.375 yards of blue fabric and 6.125 yards of green fabric was purchased.

Let x represent the number of blue yards of fabric purchased and let y represent the number of green yards of fabric purchased.

Hence:

x + y ≥ 9.5   (1)

The quilter can spend up to $110 on fabric. Hence:

9x + 13y ≤ 110    (2)

The solution to the inequality is:

x = 3.375, y = 6.125

3.375 yards of blue fabric and 6.125 yards of green fabric was purchased.

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The absolute maximum value of the given function f(x) is (32.67, 3) and the absolute minimum value of the given function f(x) is (-10.67, -9).

Let us find the absolute maximum and minimum values of the given function f(x) step-by-step.Explanation:Given function: f(x) = 1/3x³ + 7/2x² - 8x + 8; [-9,3]We need to find the absolute maximum and minimum values of the function f(x) in the given interval [-9, 3]. Step 1: Find the first derivative of the function f(x).We will differentiate the given function with respect to x to find the critical points of the function f(x).f(x) = 1/3x³ + 7/2x² - 8x + 8f'(x) = d/dx [1/3x³ + 7/2x² - 8x + 8]f'(x) = x² + 7x - 8

Step 2: Find the critical points of the function f(x).To find the critical points of the function f(x), we will equate the first derivative f'(x) to zero.f'(x) = x² + 7x - 8 = 0On solving the above equation, we get;x = -8 and x = 1 Step 3: Find the second derivative of the function f(x).We will differentiate the first derivative f'(x) with respect to x to find the nature of the critical points of the function f(x).f'(x) = x² + 7x - 8f''(x)

= d/dx [x² + 7x - 8]f''(x)

= 2x + 7Step 4: Test the critical points of the function f(x).Let us test the critical points of the function f(x) to find the absolute maximum and minimum values of the function f(x) in the given interval [-9, 3].

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Part A: Therefore, the cake weighs 112 ounces. Part B: Therefore, after 20 seconds, the tap will dispense 20 seconds × 1.2 pints/second = 24 pints of water.

Part A:

To convert pounds to ounces, we can use the conversion factor: 1 pound = 16 ounces.

Given that the cake weighs 3 (4/1) pounds, we can calculate the weight in ounces as follows:

3 4/1 pounds = 3 pounds + 4/1 pounds = 3 pounds + 4 pounds = 7 pounds

Converting 7 pounds to ounces: 7 pounds × 16 ounces/pound = 112 ounces

Therefore, the cake weighs 112 ounces.

Part B:

To convert gallons to pints, we can use the conversion factors: 1 gallon = 4 quarts and 1 quart = 2 pints.

Given that the running tap dispenses 0.15 gallons of water every second, we can calculate the amount of water dispensed in pints as follows:

0.15 gallons × 4 quarts/gallon × 2 pints/quart = 0.15 × 4 × 2 = 1.2 pints

Therefore, after 20 seconds, the tap will dispense 20 seconds × 1.2 pints/second = 24 pints of water.

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Answer:

the answer is ab

Step-by-step explanation:

you should go to the x axis and go to the four then go up 7 and it should land on the line in between a and b

Let me know if this helps :)

4x +3y =5 -------> eq (1)

2x -5y =9 -------> eq(2)

eq(2) * -2 --------> -4x +10y =-18 ------->eq(3)

eq(1) + eq(3) -----> 13y =13 ----> y=1 <>

then When you substitute y=1 into any equation

x=7

Answer:

IF WE DIVIDE THE VOLUME OF SPHERE BY 20 WE WILL GET THE VOULUME OF HEMISPHERE

Step-by-step explanation:

WEN A QUESTION ARISES IN THE EXAMINATION TO FIND THE VOLUME OF HEMISSPHERE WE CAN FIND THE AREA OF THE SPHERE AND DIVIDE BY 2.