The pair of shoes you want is on sale for 25% off. If the shoes originally cost $65, how much is the sale price

Answer:

0.89, 23/25, 93%

Step-by-step explanation:

1. Convert 23/25 to a decimal: 0.92; and then a percent: 92%

2. Convert 0.89 to a percent: 89%

3. Now, we can order these from least to greatest. In order they would obviously be 89, 92, and 93 percent.

Answer: The choice that best introduces the passage is B) In the middle of the San Francisco Bay sits a 400-acre island that, 80 years ago, did not exist.

Step-by-step explanation:

This sentence provides context for the location and history of Treasure Island and sets up the information presented in the passage.

The best introduction to the passage is option B, as it directly introduces the main subject, Treasure Island, and its historical context relating to the impact of the Great Depression and the World's Fair.

The introduction that best suits the passage given is option B) 'In the middle of the San Francisco Bay sits a 400-acre island that, 80 years ago, did not exist.' This option provides a tangible connection to the main subject of the passage, which is Treasure Island and its historical context. Notably, it introduces Treasure Island and its timeline, which directly ties into the World's Fair and the impact of the Great Depression as discussed in the passage. Options A, C, and D do not sufficiently provide a specific introduction to the unique context of Treasure Island.

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Answer:

It's not a function because the domain repeats.

The required strength of the doublet for the flow past a cylinder can be determined using the given information. In this case, we assume the flow to be inviscid, irrotational, and incompressible. The stream function for a uniform flow in the horizontal direction is given by ψ = Uy, where U represents the velocity of the uniform flow and y is the vertical coordinate.

To determine the strength of the doublet, we can use the stream function for a doublet, which is given by ψ = -2πKr sin(θ), where K represents the strength of the doublet and θ is the polar angle. The negative sign indicates that the streamlines are clockwise around the doublet.

The flow past a cylinder can be represented by the combination of a uniform flow and a doublet. The doublet is introduced to simulate the circulation around the cylinder. By matching the flow conditions at the surface of the cylinder, we can determine the strength of the doublet required.

To calculate the strength of the doublet, we equate the stream function of the uniform flow at the surface of the cylinder (ψ_uniform) to the sum of the stream function of the doublet and the stream function of the uniform flow (ψ_doublet + ψ_uniform). By solving this equation, we can find the value of K, the strength of the doublet.

In summary, to determine the required strength of the doublet for the flow past a cylinder, we need to solve the equation that equates the stream function of the uniform flow to the sum of the stream function of the doublet and the stream function of the uniform flow. Solving this equation will provide us with the value of the strength of the doublet, which represents the circulation around the cylinder.

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Answer:

hope this will help you

Step-by-step explanation:

Asymptotes are lines that a curve approaches but does not intersect. A curve may have vertical, horizontal, or slant asymptotes or none at all. Asymptotes are critical features of the curve since they are used to help graph the function.

We will use the following steps to find asymptotes of the function h(x) = 4 + (5/x):

Vertical Asymptotes:Vertical asymptotes occur when the denominator is equal to zero. So for the function

h(x) = 4 + (5/x), the denominator x cannot be equal to 0.

Therefore x = 0 is the equation of the vertical asymptote.Horizontal Asymptotes:

Horizontal asymptotes occur when the value of y approaches a constant as x becomes extremely large.

For the function h(x) = 4 + (5/x), we need to take the limit as x approaches infinity and as x approaches negative infinity respectively.

(i) As x approaches infinity,y = 4 + 0= 4(ii) As x approaches negative infinity,y = 4 + 0= 4.

Therefore, the equation of the horizontal asymptote is y = 4.

Finally, the vertical asymptote equation is x = 0, and the horizontal asymptote equation is y = 4 for the function h(x) = 4 + (5/x).

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Answer:

Step-by-step explanation:

let the distance of the trail be x

and let the time be t

given that franks average speed is 2 miles per hour

the distance covered by Frank is x-3

the time taken by Frank to cover the distance is

we know that speed=distance/time

2=x-3/t

2t=x-3  

x=2t+3---------1

Jasmine speed= 4 miles per hour

speed=distance/time

4=x/t

x=4t--------2

equating 1 and 2 above we have

2t+3=4t

solving for t we have

4t-2t=3

2t=3

t=3/2

t=1.5

That is 1hr 30 min

The variable associated with the interior and exterior angles in the triangle is equal to 56.

The value of the exterior angle is equal to 116°.

This question presents the case of a geometric system formed by a triangle and a semirray that includes two interior angles and a exterior angle. Please notice that the sum of the measures of interior angles in a triangle equals 180° and the sum of two supplementary angles equals 180°.

First, derive the equation of the missing interior angles in triangle PQR:

m ∠ R = 180° - 60° - x

m ∠ R = 120° - x

Second, obtain the equation for the two supplementary angles:

(120° - x) + (2 · x + 4°) = 180°

124° + x = 180°

x = 56

Third, determine the value of the exterior angle:

θ = 2 · x + 4

θ = 2 · 56 + 4

θ = 116°

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Answer:

92°F

Step-by-step explanation:

in degrees Fahrenheit,

t=7

f(7)=64 + 4(7)

=92

The required temperature of liquid after 7 hours is 92.

Given that,
The temperature of a liquid that is increasing can be represented by the equation f(t) = 64 + 4t, where t is the time in hours. Graph the function to show the temperatures over the first 10 hours. To use the graph to estimate the temperature after 7 hours.

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
f(t) = 64 + 4t
T = 7
f(7) = 64 + 4 * 7
    = 64 + 28
    = 92

Thus, the required temperature of liquid after 7 hours is 92.

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9514 1404 393

Answer:

  20 square units

Step-by-step explanation:

The area is given by the formula ...

  A = bh

where b is the base of the parallelogram, and h is the perpendicular distance between the parallel bases. Using the numbers from the figure, we have ...

  A = 5·4 = 20 . . . . square units

_____

Additional comment

You will notice this is the same formula as is used for a rectangle. You can consider the parallelogram to have the same area as a rectangle of these dimensions if you look at what happens when you cut the right triangle from the right end and add it to the left end. The result is a rectangle 5 units wide and 4 units high.

The same formula applies even if the skew is so great that the bases do not overlap. (That much skew would not result in a triangle of the kind shown in this diagram.)

Answer:

20 + 3x or +3 per mile

Step-by-step explanation:

Answer: 10.8 seconds

Step-by-step explanation:

\(-16t^2 + 170t+40=10\\\\16t^2 -170t-30=0\\\\t=\frac{-(-170) \pm \sqrt{(-170)^2 -4(16)(-30)}}{2(16)}\\\\t \approx 10.8 \text{ } (t > 0)\)

Answer:

70

Step-by-step explanation:

Answer:

Step-by-step explanation:

Plugin x = 4 in the expression

5*(2x + 6 ) = 5*(2*4 + 6)

                 = 5* (8 + 6)

                 = 5 * 14

                  = 70

\(\huge\text{Hey there!}\)

\(\mathsf{(x + 7^2) = 169}\)

\(\mathsf{x + 7^2 = 169}\)

\(\mathsf{x + 7\times 7 = 169}\)

\(\mathsf{x + 49 = 169}\)

\(\text{Subtract 49 to both sides}\downarrow\)

\(\mathsf{x + 49 - 49 = 169 - 49}\)

\(\text{Simplify it}\downarrow\)

\(\mathsf{x = 169 - 49}\)

\(\mathsf{x = 120}\)

\(\large\text{Therefore, your answer should be:}\)

\(\huge\boxed{\mathsf x = \frak{120}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

~\(\frak{Amphitrite1040:)}\)

Answer:

2

Step-by-step explanation:

the coefficient is the number that multiply the letter

(C) The correlation coefficient is a unitless number and must always lie between -1.0 and +1.0, inclusive: TRUE

The correlation coefficient is a unitless number and must always lie between -1.0 and +1.0, inclusive.

This means that the correlation coefficient can take on values from -1.0, indicating a perfect negative correlation, to +1.0, indicating a perfect positive correlation, with 0 indicating no correlation at all.

The correlation coefficient measures the strength and direction of the linear relationship between two variables and is not related to the proportion of times two variables lie on a straight line, nor is it related to the presence of outliers in a scatterplot.

The correlation coefficient can be +1.0 even if the data do not lie on a perfectly horizontal straight line.

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$35

He would need $35 to buy 7 pizzas because if you divide 25 and 5, you would get 5.

5+5+5+5+5+5+5=35

5x7=35

Answer:

$35

Step-by-step explanation:

So basically to find the unit price we need to craft an equation. Lets imagine one pizza is p.

We can craft this equation:

5p = 25

Divide both sides by 5

p = 5

How we just multiply that unit price by 7 to get 35, which is the answer

I put a lot of thought and effort into my answers, so I would really appreciate a Brainliest!

We are given a function y = -4x^3 - 9x^11, and we need to find its first and second derivatives.

To find the first derivative, we apply the power rule and the constant multiple rule. The power rule states that the derivative of x^n is nx^(n-1), and the constant multiple rule states that the derivative of kf(x) is k*f'(x), where k is a constant. Applying these rules, we can find the first derivative of y = -4x^3 - 9x^11.

Taking the derivative term by term, the first derivative of -4x^3 is -43x^(3-1) = -12x^2, and the first derivative of -9x^11 is -911x^(11-1) = -99x^10. So, the first derivative of y is dy/dx = -12x^2 - 99x^10.

To find the second derivative, we apply the same rules to the first derivative. Taking the derivative of -12x^2, we get -122x^(2-1) = -24x, and the derivative of -99x^10 is -9910x^(10-1) = -990x^9. Therefore, the second derivative of y is d^2y/dx^2 = -24x - 990x^9.

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Answer: 3,0

Step-by-step explanation:

The number of gallons of water that the pool will be able to hold would be = 24,600 gallons.

To calculate the number of gallons of water, the volume of the pool should first be calculated as follows:

The pool is divided into two shapes to obtain a trapezium and a rectangular prism.

Volume of rectangular prism= lwh

length= 30ft

width= 4ft

height= 20ft

Volume= 30×4×20= 2,400ft³

Volume of trapezoid prism;

= 1/2(a+b)hl

where;

a= 8ft

b= 30-16= 14ft

h= 8-4= 4ft

l= 20ft

Volume= 1/2(8+14)4×20

= 1/2(22)80

= 880ft³

The volume of structure;

= 2,400ft³+880ft³

= 3,280ft³

But 1ft³ = 7.5 gallons

3,280ft³ = X gallon

make X gallons the subject of formula;

X gallons= 7.5×3280= 24,600 gallons

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The probability of the commuting time being between 50 and 60 minutes is determined for a train with a uniformly distributed commuting time between 40 and 90 minutes.

In a uniform distribution, the probability density function (PDF) is constant within the range of the distribution. In this case, the commuting time is uniformly distributed between 40 and 90 minutes. The PDF for a uniform distribution is given by:

f(x) = 1 / (b - a)

where 'a' is the lower bound (40 minutes) and 'b' is the upper bound (90 minutes) of the distribution.

To find the probability that the commuting time falls between 50 and 60 minutes, we need to calculate the area under the PDF curve between these two values. Since the PDF is constant within the range, the probability is equal to the width of the range divided by the total width of the distribution.

The width of the range between 50 and 60 minutes is 60 - 50 = 10 minutes. The total width of the distribution is 90 - 40 = 50 minutes.

Therefore, the probability that the commuting time will be between 50 and 60 minutes is:

P(50 ≤ x ≤ 60) = (width of range) / (total width of distribution) = 10 / 50 = 1/5 = 0.2, or 20%.

Thus, there is a 20% probability that the commuting time on this particular train will be between 50 and 60 minutes.

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The answer to the question is C, which is integers 4,5 or -4,-3.

Let's call the first integer x and the second integer x+1 (since they are consecutive).
According to the problem, we can set up the following equation:
x(x+1) = x + (x+1) + 19
We can simplify this equation by expanding the left side and combining like terms on the right side:
x^2 + x = 2x + 20
Now we can move all the terms to one side and get a quadratic equation:
x^2 - x - 20 = 0
We can factor this equation as (x-5)(x+4) = 0, which means the solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The long answer includes all the steps of solving the quadratic equation:
x^2 - x - 20 = 0
We can use the quadratic formula to solve for x:
x = (-b ± √(b^2 - 4ac)) / 2a
In this case, a=1, b=-1, and c=-20.
x = (1 ± √(1 - 4(1)(-20))) / 2(1)
x = (1 ± √81) / 2
x = (1 ± 9) / 2

The two solutions for x are 5 and -4.
Therefore, the two consecutive integers are either 4,5 or -4,-3.
The product of two consecutive integers is 19 more than their sum. To find the integers, let's represent them as x and x+1.

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The given equation can be solved for the value of x and y

i.e. x = (3y - 7)/4 & y = (4x + 7)/3.

What is the linear equation?

An algebraic equation of the form y=mx+b is referred to as a linear equation. m is the slope, and b is the y-intercept, and all that is involved is a constant and a first-order (linear) term. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."

We have,

The equation 4x=3y-7

So, here we can solve this equation for the x as well as y equals,

Firstly we will solve for x:

4x = 3y - 7

dividing the whole equation by 4 we get,

4x/4 = (3y - 7)/4

x = (3y - 7)/4

Similarly, we will solve for y:

4x = 3y - 7

3y = 4x + 7

dividing the whole equation by 3 we get,

3y/3 = (4x + 7)/3

y = (4x + 7)/3

Hence, the given equation can be solved for the value of x and y

i.e. x = (3y - 7)/4 & y = (4x + 7)/3

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Answer:

yes

Step-by-step explanation:

In order to make a triangle, the sum of the two shortest lengths must be greater than the longest length. Since 15 + 30 > 34 is a true statement the answer is yes.

The procedure for revising probabilities based on additional information is referred to as Bayesian updating

The procedure for revising probabilities based on additional information is referred to as Bayesian updating. Bayesian updating is a fundamental concept in Bayesian statistics, which allows for the incorporation of new evidence or data to update and refine prior beliefs or probabilities.

In Bayesian updating, the process begins with an initial prior probability, which represents the initial belief or knowledge about an event or hypothesis before any evidence is observed. As new evidence or data becomes available, it is used to update the prior probability and generate a posterior probability. The posterior probability represents the revised belief or probability after incorporating the new information.

Bayesian updating follows the principles of Bayes' theorem, which mathematically describes the relationship between prior probabilities, likelihoods, and posterior probabilities. It involves combining the prior probability with the likelihood of observing the data given the hypothesis and then normalizing the result to obtain the posterior probability.

The beauty of Bayesian updating is that it allows for a flexible and iterative process of continuously updating beliefs and probabilities as new information emerges. It provides a framework for incorporating both subjective prior beliefs and objective data to make more informed decisions and predictions. Bayesian updating has applications in various fields, including machine learning, decision-making, and scientific research.

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Answer:

$5026

Step-by-step explanation:

if you divide 70 by 15 you get 4.66666667

then multiply 4.6666667 by 1077 and you get 5026

The given statement exists true. A matrix is broken down into orthogonal (Q) and upper triangular (R) matrices in a process known as QR decomposition (factorization).

A matrix can be expressed as the union of two distinct matrices, Q and R, using the QR matrix decomposition. R is a square upper/right triangular matrix and Q is an orthogonal matrix. R is also invertible because it is square and doesn't have zeros in its diagonal entries.

A matrix is broken down into orthogonal (Q) and upper triangular (R) matrices in a process known as QR decomposition (factorization). Finding eigenvalues and solving linear least squares problems both use QR factorization.

A = QR. Be aware that the QR-factorization of a rectangular matrix A is sometimes understood with Q square and R rectangular rather than Q rectangular and R square, as with the MATLAB command qr.

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