Brass is made from copper and zinc in the ratio 5:3 by weight if there are 6kg of zinc work out the weight of copper
If there are 25kg of copper work out the weight of zinc

Answer: the answer is 129

Step-by-step explanation: 180 subtract by 51 and it will give u 129

Answer:

129 degrees

Step-by-step explanation:

A straight line measurement is 180 degrees.

180 - 51 = 129 degrees

Answer:

Step-by-step explanation:

Using exponential function concepts, it is found that:

The model is: .

The car will be worth $13,625 in 7 years.

Answer:

- 7

Step-by-step explanation:

Given

t < - 6

Then t = - 7 is less than - 6 and is a solution

Answer:

\(x^4-5x^2-6=0\)

Step-by-step explanation:

A quadratic equation is always in the form of ;

\(ax^2 +bx+c =0\)

Number 1 : Can be solved using factorization , Quadratic equation or Completing the square method

Number 2 : Quadratic formula or Completing the square method

Number 3 :Difference of two squares

Number 4 : not a quadratic equation but can be solved using Factorization

I Hope it Helps :)

The task involves modifying the given code to implement binary search on an array in descending order. The logic of the code needs to be adjusted accordingly.

The task requires modifying the existing code to perform binary search on an array sorted in descending order. In the original code, the logic for the ascending order was based on comparing the key with the middle element of the list. However, in the descending order case, we need to adjust the logic.

To implement binary search on a descending array, we need to swap the order of the conditions in the code. Instead of checking if the key is less than the middle element, we need to check if the key is greater than the middle element. Similarly, the condition for equality also needs to be adjusted.

The modified code for binary search in descending order would look like this:

public static int binarysearch2(int[] list, int key) {

   int low = 0;

   int high = list.length - 1;

   while (high >= low) {

       int mid = (low + high) / 2;

       if (key > list[mid])

           high = mid - 1;

       else if (key < list[mid])

           low = mid + 1;

       else

           return mid;

   }

   return -1; // Not found

}

By swapping the conditions, we ensure that the algorithm correctly searches for the key in a descending ordered array.

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Answer:

12

Step-by-step explanation:12x9

Answer:

8:1

Step-by-step explanation:

The GCF of 72 and 9 is 9.

Therefore, we would do 72/9 : 9/9

After dividing, we would get an answer of 8:1

Hope this helps!:)

Step-by-step explanation:

\( \sqrt{1.44} \)

\( \sqrt{ \frac{144}{100} } \)

\( \frac{ \sqrt{144} }{ \sqrt{100}} \)

\( \frac{12}{10} \)

\( \frac{6}{5} \)

= 1.2

Answer:

Step-by-step explanation:

If sh starts reading at 3:25 and reads for 15 minutes, she is finished at 3:40. The hour hand is on the 3 and the minute hand is on the 8, so there is a difference of 25 minutes between the hour hand and the minute hand. Each 5-minute increment is 30 degrees (360 / 12) so 30 x 5 = 150 degrees. This is an obtuse angle. Not sure what kind of an answer you're looking for so I gave both the degree measure of the angle formed by the hour hand and the minute hand, and the classification of the angle.

Answer:

90 degrees, which is a right angle

Step-by-step explanation:

The time indicates when she starts reading is irrelevant. The only thing to notice is that she reeds for 15 minutes. Whenever you read for 15 minutes the angle that is formed by the hour and minute hands of the clock will always be the same, regardless of the starting time!

60 minutes comes down to 360 degrees.

1 minute = 60/60 and that comes down to 360/60 = 6 degrees.

15 minutes = 15 times 1 minute....

15 minutes comes down to 15* 6 = 90 degrees

90 degrees is a right angle

The use and interpretation of an R or s chart are critical when examining an X-bar chart because they provide additional information about the variation within the subgroups. This allows for a more comprehensive analysis of the process and helps identify any issues or sources of variability.

When using an X-bar chart, the focus is on monitoring the process mean or average. However, the X-bar chart alone does not provide information about the variation within the subgroups. This is where the R or s chart comes into play. The R chart measures the range of values within each subgroup, while the s chart measures the standard deviation.
By using an R or s chart alongside the X-bar chart, we can assess the variability within the subgroups and determine if it is stable over time. If the variation within the subgroups is high and unpredictable, it may indicate that the process is out of control or that there are sources of variation that need to be addressed. The R or s chart provides additional insights into the process performance and helps in identifying the presence of special causes of variation.
In summary, the use and interpretation of an R or s chart in conjunction with an X-bar chart allow for a more comprehensive analysis of process variation. This helps in understanding the stability and capability of the process and enables appropriate actions to be taken to improve quality and performance.

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The network representation of the given network flow problem is a directed graph with nodes representing sources, sinks, and intermediate points, and edges representing flow paths. The objective function value cannot be determined without the rest of the constraints.

To draw the network representation of the given problem, we need additional information about the constraints, such as the capacities of the edges, the supply and demand of nodes, and any other constraints related to flow.

The network representation consists of nodes and edges. Nodes represent the sources, sinks, and intermediate points in the problem, while edges represent the flow paths between nodes.

Each edge is assigned a variable (e.g., X12, X13, etc.) that represents the flow or quantity of flow on that edge. The objective function, in this case, is to minimize the sum of the products of the flow variables and their respective coefficients.

However, without information about the capacities, supply and demand, and other constraints, it is not possible to determine the value of the objective function.

In conclusion, the network representation of the problem can be drawn, but the value of the objective function cannot be determined without the additional constraints and information.

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Answer:

257 pihff ertu job ruu 7oinc aet box took

The probability of a student completing the final examination in less than 65 minutes is 13.45%.

The time it takes to complete a final examination in a particular college course is normally distributed with a mean of 77 minutes and a standard deviation of 12 minutes. This can be expressed mathematically as X~N(77, 12).

The probability of a student completing the final examination in less than 65 minutes can be calculated by using the Z-score formula:

Z = (x - μ) / σ

Where x = 65 minutes, μ = 77 minutes, and σ = 12 minutes.

Plugging these values into the formula, we get:

Z = (65 - 77) / 12 = -1.17

Using a Z-score table, we can find the probability of a student completing the final examination in less than 65 minutes, which is equal to 0.1345, or 13.45%. Therefore, the probability of a student completing the final examination in less than 65 minutes is 13.45%.

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The slope of the straight line paths the knight can travel is 1.

Slope is the ratio of the rise, the vertical change, to the run, the    horizontal change of a line.

To calculate the slope of the straight paths, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

hence, the slope of the straight line part is 1.

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Answer:

Taylor will earn $27.60 after the raise.

Step-by-step explanation:

If you take $24.00 and multiply it by $1.15, your answer should be $27.60. Therefore, this is the answer to your question.

Hopefully this helps, did the best I could!

Answer:

T(m) = 12,000 gallons + (9 gallons/ minute)m

Step-by-step explanation:

This is a linear function with beginning value 12,000 gallons and unit rate of increase 9 gallons/minute:

T(m) = 12,000 gallons + (9 gallons/ minute)m

PS:  Please don't use " $ " to set off numbers.  Not needed!

An equation for water level in june for pensacola as a function of time (t) is f(t) = 5 cos pi/6 t + 7.

Which equation of cos show period amplitude ?

The equation given below show aplitude and period

\(y = A cos bx + c\)

where A = amplitude,

b = 2 pi/Period,

Period = 12 hrs,

c = midline,

x = t and y = f(t)

We have to find the amplitude

\(A = 1/2 (Xmax - Xmin)\)

\(12 - 2 / 2 = 10/2 = 5\)

\(b = 2 pi / 12 = pi/6\)

\(c = 1/2 (Xmax + Xmin)\)

\(12+2/2 = 7\)

Therefore, the an equation for water level in june for pensacola as a function of time (t)

\(f(t) = 5 cos pi/6 t + 7\)

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Answer:

\( \displaystyle \theta = \frac{3\pi}{4},\frac{11\pi}{12}, \frac{7\pi}{4}, \frac{23\pi}{12} \)

Step-by-step explanation:

we would like to solve the following trigonometric equation on interval of [0,2π)

\( \displaystyle \cos \left(2 \theta + \frac{\pi}{3} \right ) = \frac{ \sqrt{3} }{2} \)

remember that,

\( \displaystyle \cos(t) = \cos(2\pi - t) \)

so the equation has two solutions

\( \begin{cases} \displaystyle \cos \left(2 \theta + \frac{\pi}{3} \right ) = \frac{ \sqrt{3} }{2} \\ \cos \left(2\pi - (2 \theta + \frac{\pi}{3} )\right ) = \frac{ \sqrt{3} }{2} \end{cases}\)

take inverse trig both sides which yields:

\( \begin{cases} \displaystyle 2 \theta + \frac{\pi}{3} = \frac{\pi}{6} \\ 2\pi - 2 \theta - \frac{\pi}{3} = \frac{\pi}{6} \end{cases}\)

simplify the second equation:

\( \begin{cases} \displaystyle 2 \theta + \frac{\pi}{3} = \frac{\pi}{6} \\ \frac{5\pi}{3} - 2 \theta = \frac{\pi}{6} \end{cases}\)

add period of 2kπ:

\( \begin{cases} \displaystyle 2 \theta + \frac{\pi}{3} = \frac{\pi}{6} + 2k\pi \\ \frac{5\pi}{3} - 2 \theta = \frac{\pi}{6} + 2k\pi\end{cases} \)

By making theta subject of the equation we acquire:

\( \begin{cases} \displaystyle \theta = \frac{11\pi}{12} + k\pi \\ \theta = \frac{3\pi}{4} - k\pi\end{cases} \)

since \(k\in\mathbb{Z}\) we get:

\( \begin{cases} \displaystyle \theta = \frac{11\pi}{12} + k\pi \\ \theta = \frac{3\pi}{4} + k\pi\end{cases} \)

as we want to Solve the trigonometric equation on the interval of [0,2π) we get

\( \begin{cases} \displaystyle \theta = \frac{11\pi}{12} \\ \theta = \frac{3\pi}{4} \end{cases} \text{and} \begin{cases} \displaystyle \theta = \frac{11\pi}{12} + \pi \\ \theta = \frac{3\pi}{4} + \pi\end{cases} \)

by simplifying we acquire:

\( \begin{cases} \displaystyle \theta = \frac{11\pi}{12} \\ \theta = \frac{3\pi}{4} \end{cases} \text{and} \begin{cases} \displaystyle \theta = \frac{23\pi}{12} \\ \theta = \frac{7\pi}{4} \end{cases} \)

and we are done!

hence,

\( \displaystyle \theta = \frac{3\pi}{4},\frac{11\pi}{12}, \frac{7\pi}{4}, \frac{23\pi}{12} \)

The representation of point P in cylindrical coordinates is P (ρ, φ, z) = (10, 0.9273, -4).

In mathematics, we often use different coordinate systems to describe the position of a point in space.

Cartesian coordinates, also known as rectangular coordinates, are commonly used, but there are other coordinate systems as well. In this case, we have a point P with Cartesian coordinates (6, 8, -4), and we want to find its representation in cylindrical coordinates. Cylindrical coordinates describe a point in terms of its distance from the origin, an angle in the xy-plane, and its height above or below the xy-plane.

Conversion to Cylindrical Coordinates (r, θ, z):

To convert the point P (6, 8, -4) to cylindrical coordinates, we need to determine the cylindrical components: the radial distance from the origin (r), the angle in the xy-plane (θ), and the height above or below the xy-plane (z).

The radial distance (r) can be found using the formula:

r = √(x² + y²),

where x and y are the Cartesian coordinates of the point P.

Substituting the given values, we have:

r  = √(6² + 8²)

  = √(36 + 64)

  = √100

  = 10.

The angle in the xy-plane (θ) can be found using the formula:

θ = arctan(y / x),

where x and y are the Cartesian coordinates of the point P.

Substituting the given values, we have:

θ = arctan(8 / 6) ≈ 0.9273 radians (approximately).

The height (z) remains the same in cylindrical coordinates, so z = -4.

Therefore, the representation of point P in cylindrical coordinates is P (r, θ, z) = (10, 0.9273, -4).

Conversion to Cylindrical Coordinates (ρ, φ, z):

In some textbooks or conventions, cylindrical coordinates are denoted by (ρ, φ, z) instead of (r, θ, z). The formulas to convert Cartesian coordinates to cylindrical coordinates remain the same, but the notation changes.

Using the same formulas as in the previous explanation, we can find the cylindrical components:

ρ = √(x² + y²)

  = √(6² + 8²)

  = 10,

φ = arctan(y / x) = arctan(8 / 6) ≈ 0.9273 radians (approximately),

z = -4.

Therefore, the representation of point P in cylindrical coordinates is P (ρ, φ, z) = (10, 0.9273, -4).

Note: The symbol φ (phi) is often used to represent the angle in cylindrical coordinates to avoid confusion with the polar angle θ in spherical coordinates.

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Complete Question

Consider the point P= (6,8,-4) in Cartesian coordinates.

1. What is P in cylindrical coordinates?

  P (r,∅,z) =

2. What is P in cylindrical coordinates?

  P (p,,θ,∅) =

Answer:

$7.35

Step-by-step explanation:

Answer:

c/sin(60°) = 14/sin(25°)

c = 14sin(60°)/sin(25°) = 28.7

Answer:

Subtracting 7

Step-by-step explanation:

Given:

Clara is stacking cups; she put 45 plastic cups in the first stack, 38 plastic cups in the second stack, 31 plastic cups in the third stack, and 24 plastic cups in the fourth stack.

To Find:

What kind of sequence is this?

Solve:

Let's make a table:

[1 stack]  45

[2 stack] 38

[3 stack] 31

[4 stack] 24

Now all we have to do is subtract to see what each is:

45 - 38 = 7

38 - 31 = 7

31 - 24 = 7

Thus,

[1 stack]  45 ⇒ 7

[2 stack] 38 ⇒ 7

[3 stack] 31 ⇒ 7

[4 stack] 24 ⇒ 7

Hence, each stack is going down by 7.

Kavinsky

The constraint that reflects the statement "if project 1 is selected then project 2 must be selected" is x1 ≤ x2.

The constraint x1 ≤ x2 ensures that if project 1 is selected (x1 = 1), then project 2 must also be selected (x2 = 1).

This constraint imposes a logical relationship between the binary variables x1 and x2, indicating that the value of x2 should be at least as large as x1. If x1 is 0 (indicating project 1 is not selected), the constraint does not impose any specific condition on x2.

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arithmetic sequences formula

-recursive

Answer:

d Because I just took the test and got it right

Answer:

9

Step-by-step explanation:

put in order least to greatest

-9 -9 -7 -6 -5 -4 -3  0

9-0=9

range cannot be negative because it is the space between numbers and distance cannot be negative

Answer: The range is 9.

B. Similar spreads different centers.

Answer: Answer

4.0/5

37

jdoe0001

Genius

13.9K answers

122.5M people helped

check the picture below.

notice, the cross-section is just a 6x36 rectangle, and its area is, well just 6*36.

Step-by-step explanation: hope this helped

Answer:

-4

-1

-4

7

10

Step-by-step explanation:

It is easier if you do it practically on the number line.

You can also do it physically by drawing a number line on the ground .

Answer: Right/complementary angles

Step-by-step explanation:

Two angles that add up to 90 degrees are called complementary angles.

Complementary angles are a pair of angles that, when added together, equal a right angle, which measures 90 degrees.

In other words, the sum of the measures of complementary angles is always 90 degrees.

Complementary angles often arise in geometry and trigonometry, and understanding their properties is important when working with angles and solving problems involving right triangles.

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The required sum of the positive integers x and y with the given condition of product of x and y as  square and cube is equal to 85.

Two positive integers are x and y.

Product of 360 and x is a square.

Product of 360 and y is a cube.

Prime factors of 360 equals to ,

360 = 2³ × 3² × 5

To make a product of 360 and x as square ,

Multiply by 2 and 5 and 3 is already a perfect square.

x = 2 × 5

 = 10

360 × 10 = 3600

Now , to make product of 360 and y as cube.

Multiply by 3  and 5² and 2 is already a perfect cube.

y = 3 × 5²

   = 75

360 × 75 = 27000

Sum of the values of x and y is equal to,

x + y

= 10 + 75

= 85

Therefore, the sum of the positive integers x and y are 85.

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