A traveler is walking on a moving walkway airport. The traveler must walk back on the walkway to get a bag he forgot. The travelers ground speed is 2ft/s against the walkway and 8ft/s with the walkway. What is the travelers speed off the walkway? What is the speed of the moving walkway?


The travelers speed off the walkway is
The speed of the moving walkway is

Answer: 30n+45=t

Step-by-step explanation:

557,568 inch³ of refrigerant can be held by the tubing.

Here we have to find how much a refrigerant can hold.

Data given:

outer diameter (d) = 78inch

outer radius(r) = 39 inch

inner diameter (d') = 34 inch

inner radius (r') = 17inch

Height (h) = 12 feet

= 12 × 12

= 144 inch

the formula to find the volume of the cylinder:

volume= пr²h

So here we get

Refrigerant hold = Volume of the outer cylinder - the volume of the inner cylinder

= πr²h - πr'²h

= πh(r² - r'²)

= π ×144 ( 39² - 17²)

= π × 144 ×56 × 22

= 22/7 × 144 × 56 × 22

= 557,568 inch³

Therefore the refrigerant can hold 557,568 inch³.

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Answer: in image

Step-by-step explanation: j

Volume of ice cream Cone = 753.6[tex]cm^{3}[/tex]

A three-dimensional space's occupied volume is measured. It is typically quantified using a variety of imperial or US-standard units as well as SI-derived units. The definition of length and volume are connected.

According to the given information

Volume of toy ice cream Cone = Volume of Cone + Volume of Hemisphere

We are given that

Radius of cone = Radius of hemisphere = 6 cm

Height of cone = 8 cm

So

Volume of Sphere = [tex]\frac{1}{2}[/tex] × [tex]\frac{4\pi r^{3} }{3}[/tex]

                               = 1/2 × 4/3 × 3.14 × [tex]6^{3}[/tex]

Volume of sphere = 452.16 [tex]cm^{3}[/tex]

Volume of Cone = [tex]\frac{\pi r^{2}h }{3}[/tex]

                            = 1/3 × 36 ×3.14 ×8

                            = 301.44 [tex]cm^{3}[/tex]

So

The Volume of ice cream cone = 452.16 [tex]cm^{3}[/tex] + 301.44 [tex]cm^{3}[/tex]

                                                     = 753.6[tex]cm^{3}[/tex]

Volume of ice cream Cone = 753.6[tex]cm^{3}[/tex]

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All the given options are correct.

what is random?

The lack of pattern or predictability in events, whether it be apparent or real, is referred to as randomness. Sometimes there is no order or discernible pattern or combination in a random series of events, symbols, or processes.

a)Random uncertainty present in the network may exhibit cumulative interactions reflecting the inherent randomness of independent activities within the network.

b)An activity having only a relative small amount of slack could potentially exceed the critical time calculated from the expected critical path.

c)As statistical variances rise in relation to expected duration, the range of uncertainty in near-critical paths will exhibit wider dispersion.

Hence all the given options are correct.

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Complete Question
Why is it important to evaluate non-critical paths that possess large variances or path times that are close to critical in duration?

A) Random uncertainty present in the network may exhibit cumulative interactions reflecting the inherent randomness of independent activities within the network.
B) An activity having only a relative small amount of slack could potentially exceed the critical time calculated from the expected critical path.
C) As statistical variances rise in relation to expected duration, the range of uncertainty in near critical paths will exhibit wider dispersion.
D) All of the above.

Answer:

To find the resistance of a resistor, you can use the formula R = V / I, where R is the resistance in ohms, V is the voltage in volts, and I is the current in amperes. Using the values provided, we can calculate the resistance as follows:

R = 0.5 V / 0.03 A = 16.67 ohms

Rounded to the nearest hundredths, the resistance is 16.67 ohms.

The required equation of the line is given as y =3x - 3.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

here,

As given in the question that, the line is passing through the point (2,3), and the slope line is 3, the equation of the line is to be determined.

The standard equation of the line is given as
y=Mx + b
Substitute values of point and slope in the above equation,
3 = 2×3 + b
b = -3
Put this b and M in the standard given equation,
y= 3x - 3

Thus, the required equation of the line is given as y =3x - 3.

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The measures that the third piece cannot assume are given as follows:

A set of measurements can represent a triangle if the sum of the two smaller measurements is greater than the greater measures.

The sum of the measurements in this problem is given as follows:

x + y + z = 10.

The first piece is twice as long as the second,hence:

x = 2y.

Thus:

3y + z = 10.

The condition needed for a triangle to be formed is given as follows:

The options are missing, hence the answer was given in general terms, with the concept used presented.

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The ball' velocity when it left Zoey' hand is 8.85 m/s

What is the principle of conservation of energy?

The word "conservation" in physics describes anything that doesn't change. This indicates that a conserved quantity is represented by a variable in an equation that is constant over time. Its value is the same whether an event occurs before or after it.

In physics, there are a lot of conserved quantities. For making forecasts in what would otherwise be exceedingly complex situations, they are frequently remarkably useful. There are three fundamental quantities in mechanics that are conserved. They are power, forward motion, and angular momentum.

According to question

Mass of the ball = 0.2 kg

Maximum height of the ball = 4 m

Gravity = 9.8 m/s²

Therefore:

Using conservation of energy, we know that P.E. top = K.E. bottom. This tells us that the potential energy at the top is all converted to kinetic energy at the bottom. We can substitute the equations for potential energy and kinetic energy

Initial kinetic energy + Initial potential energy =  Final kinetic energy + Final potential energy

1/2mv² + 0 = mgh + 0

½(0.2)v² = (0.2)(9.8)4

v² = 78.4

v = 8.854377…

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The percentage of the seats in the theater that were filled by the 6th graders on the trip is 88%.

Given that the middle school took all of its 6th-grade students on a field trip to see a ballet at a theater that has 1500 seats and the students filled 1320 of the seats in the theater.

The percentage of the seats in the theater were filled by the 6th graders on the trip will be:

= Number of 6th graders / Total students × 100

= 1320 / 1500 × 100

= 88%

The percentage is 88%.

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Answer:

1080

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Slope form is:

y=mx+b

4 represents m

m is the slope, or change in y over change in x

Answer:

Using the slope-intercept form, the slope is −4 .

Step-by-step explanation:

The slope-intercept form is y=mx+by=mx+b, where mm is the slope and bb is the y-intercept.y=mx+by=mx+b

Using the slope-intercept form, the slope is −4-4.m=−4

The number pattern is 1, 1 ,2,3,7,23 ,164,3,776

What is the definition of a number pattern?

Number pattern is a pattern or sequence in a series of numbers. This pattern generally establishes a common relationship between all numbers.

1 + 1 = 2 + 0 = 2

3 x 2 = 6 + 1 = 7

7 x 3 = 21 + 2 = 23

23 x 7 = 161 + 3 = 164

164 x 23 = 3772 + 4 = 3776

Therefore, The number pattern is 1, 1 ,2,3,7,23 ,164,3,776

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The absolute value function which will be narrower than  the parent function is:

f(x) = 2.9|x|

Given parent function is f(x)=|x|

Now we have to find which function from given choices will be narrower than the parent function.

Notice that adding or subtracting some number from the parenth function only shifts the graph up, down, left of right side.

But that will not make function narrorwer or broader.

So f(x) = |x – 2| and  f(x) = |x| + 3, can't be the answer.

Multiplying by some positive real number which is more than 1, makes function narrower.

Only f(x) = 2.9|x| from remaining choices fits that case.

Hence f(x) = 2.9|x| is the final answer.

f(x) = 1.2|x + 8|  will also make the function narrower but will shift the parent function too.

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Answer:

Step-by-step explanation:

o find the vertex of f(x)=x2−8x+7 , there are several things you can do. You could complete the square to get the equation into vertex ...

Answer: 3(x+4)

Step-by-step explanation:

Let's start with what we know. To factor problems, we just find a common divisor. Here, the common divisor is 3 so:

3(x+4)

Answer:

Exact form:

[tex]s = - \frac{60}{13} [/tex]

Decimal form:

[tex]s = - 4.615384[/tex]

Mixed Number Form:

[tex]s = - 4 \frac{8}{13} [/tex]

Answer:

10 nickels and 14 dimes

Step-by-step explanation:

Answer:

28 divided by 66.29 is approximately 0.4223. To find the exact result, you would need to perform long division. The process for doing this is as follows:

Begin by dividing the leftmost digit of the dividend (28 in this case) by the divisor (66.29). In this case, the result is 0 with a remainder of 28.

Bring down the next digit of the dividend (0 in this case), so that the dividend is now 280.

Divide 280 by 66.29. The result is 4 with a remainder of 36.29.

Bring down the next digit of the dividend (0 in this case), so that the dividend is now 36.29.

Divide 36.29 by 66.29. The result is 0.54 with a remainder of 0.29.

Bring down the next digit of the dividend (0 in this case), so that the dividend is now 0.29.

Divide 0.29 by 66.29. The result is 0.004 with a remainder of 0.

The remainder is 0, so the division is complete. The result is 0.004223.

Alternatively, you can use a calculator to perform the division. Just enter "28 / 66.29" and the calculator will give you the result.

Step-by-step explanation:

Answer:

[tex]x = 180 - \frac{y}{2}[/tex]

Step-by-step explanation:

Our goal here is to isolate [tex]x[/tex] on one side of the equals sign

[tex]360 = 2x + y[/tex]

Here we have 2 terms on the right side of the equals sign, [tex]2x[/tex] and [tex]y[/tex]

in order isolate the [tex]x[/tex] term we must subtract [tex]y[/tex]

However, if we subtract [tex]y[/tex] from one side of the equation we must also do the same to the other side to a maintain balanced equation.

[tex]360 = 2x + y[/tex]
[tex]-y[/tex]           [tex]-y[/tex]

[tex]360 - y = 2x[/tex]

Now to remove "2" from [tex]2x[/tex] we must do the opposite of multiplication, which is division.

[tex]\frac{360}{2} - \frac{y}{2} = \frac{2x}{2}[/tex]

simplify.

[tex]180 - \frac{y}{2} = x[/tex]

Answer: 9

Step-by-step explanation:

3x9=27

27-18=9

Answer:

Step-by-step explanation:

dw

Answer:

Acute angle

Step-by-step explanation:

Any angle less than 90° is acute.

Answer:

Acute.

Step-by-step explanation:

90 degree angle = Right Angle

Greater than 90 degrees = Obtuse Angle

Less than 90 degrees = Acute Angle

The surface area of the plane is π√14 sq. units.

It is given in the question that the equation of the plane = x+2y+3z=1 and that of the cylinder

= x² + y² = 5                                                                  [1]      

Let J be the projection on the plane x+2y+3z=1

We know that the surface area of an equation is

∫∫j  √{1+(∂z/∂x)² + (∂z/∂y)²} dA

We know that the plane is inside the cylinder.

By using the coordinates of the cylinder we can get

x = r cosθ and y = rsinθ

Squaring both sides gives us

x² = r²cos²θ

y² = r²sin²θ

Therefore we get,

x² + y² =  r²cos²θ + r²sin²θ

= r²(cos²θ + sin²θ)

We know that cos²θ + sin²θ = 1. Hence,

=  r²                                                                         [2]

From equations [1] and equation [2] we get

r² =  5

or, r = √5

Hence,

J = {(r,θ)/ 0 ≤ r ≤ √5, 0 ≤ θ ≤ 2π}

Therefore,

x +2y + 3z =1

or, z = 1/3(1 - x - 2y)

Partially differentiating z with respect to x and with respect to y gives us

∂z/∂x = -1/3

and,

∂z/∂y = -2/3

Therefore,

We already know that Surface Area = ∫∫j √{1+(∂z/∂x)² + (∂z/∂y)²} dA

= ∫∫j √{1+ (-⅓) ² + (-⅔) ²} dA

= ∫∫j √(9+1+4)/√9 dA

= √14 /3∫∫j dA

=√14/2 [2π - 0]

= π√14 sq units

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The slope of the line that passes through (4,1) and (2,5) is -2.The slope of a line can be expressed in many ways, including as a fraction, decimal, or even in terms of the angle of inclination.

The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.The slope of a line is calculated by finding the difference in the y-values (rise) divided by the difference in the x-values (run).

In this case, the rise is 5 - 1 = 4 and the run is 2 - 4 = -2.

Therefore, the slope of the line is 4/-2 = -2.

In the case of a horizontal line, the slope is 0, and in the case of a vertical line, the slope is undefined. The slope is a useful tool in mathematics as it can be used to determine the equation of a line, the rate of change on a graph, or the amount of change for every unit of time. It can also be used to determine the area between two points on a graph. Slope is an essential concept in mathematics and can be used to solve many types of problems.

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The appropriate sample size for the 95% confidence interval is given as follows:

139.

To obtain the appropriate sample size for the confidence interval, we need to look at it's equation for the margin of error, which is defined as follows:

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which the parameters are listed as follows:

The confidence level is of 95%, hence the critical value z is the value of Z that has a p-value of [tex]\frac{1+0.95}{2} = 0.975[/tex], so the critical value is z = 1.96.

The margin of error and the population standard deviation have the values given as follows:

[tex]M = 1, \sigma = 6[/tex]

Then the sample size is obtained as follows:

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]1 = 1.96\frac{6}{\sqrt{n}}[/tex]

[tex]\sqrt{n} = 1.96 \times 6[/tex]

[tex](\sqrt{n})^2 = (1.96 \times 6)^2[/tex]

n = 139 (rounded up, as for a sample size of 138 the margin of error would be slightly above 1).

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The best approximation for the area of the circle is 201.0in³

The size of a region on a planar or curved surface is expressed mathematically as area. The term "surface area" refers to the area of an open surface or the perimeter of a three-dimensional object, whereas "plane area" refers to the area of a shape or planar lamina. Area can be thought of as the amount of a certain thickness of material required to construct a model of the shape. For the areas of basic forms like circles, triangles, and rectangles, there are a number of well-known formulas. Any polygon can be divided into triangles to get its area using these formulas. Calculus is commonly needed to calculate the area of forms having curved boundaries. Calculus' historical growth was in large part driven by the issue of figuring out the area of plane figures.

It is possible to calculate a shape's area.

As we already know that,

The area of a circle=πr²

Here, r=8in

π=3.14

Then,

A=(3.14)(8²)

A=201.0in²

Therefore, Area=201.0in²

Hence, the best approximation for the area of the circle is 201.0in³

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The complete question is:

"What is the best approximation for the area of this circle? Use 3.14 to approximate pi. 25.1 in² 50.2 in² 201.0 in² 803.8 in² Circle with radius labeled 8 in."

When the scale factor is greater than one, then the dilation is not a reduction.

What is a dilation?

Dilation is a process of changing a thing. It is a process of transformation that to make the objects smaller or larger, with the use of specific scale factor.

The new figure that is the result of dilation is known as the image. Initial figure is referred to as the pre-image.

What is a center of dilation?  

Center of dilation is the resizing that happens from a point. The objects/figures are expanded or contracted from the center of dilation.

Scale factor is a figure by which the size of any geometrical figure can be resized, with respect to its original size. The scale factor is multiplied to get image.

Figure size increased, when the scale factor is greater than 1.

Thus, the dilation will be a expansion, when the scale factor is a greater than one.

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The required simplified solution of the given expression is 4√15i.

A simplified solution of the given expression √-240 is to be determined.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,

The square root of the negative value induces the property of the complex number. (a complex number is a number that contains both the real and imaginary parts of the number)

Simplifying,
√-240= √4×4×-15
         = 4 √-15
         = 4√15i   {∵ √-1 = i}

Thus, 4√15i is the required simplified solution to the provided expression.

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The question seems to be incomplete,
The complete question could be as,

Simplify the complex number √-240 ?

The 150 kilometres per hour is the rate or speed of object.

The kilometres is indicative of distance and hour is indicative of time. So the fraction of kilometre and hour indicates the speed or rate of object. The rate or speed find wide applicability in calculations and can be indicative of multiple things.

For instance, the distance covered in an hour can signify the rate of descendence of bucket in the well, landing or flying of airplane, and other things. The same thing can also indicate speed in terms of distance travelled by any object like car, bus, airplane, protons, neutrons, atoms, gas molecules in an hour.

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The vector in component form for an object flying at 235 mph at a bearing of N55°W is given as follows:

(-134.79, 192.5).

The vector is composed by two components, the x-component and the y-component, as follows:

<x,y>.

The components are defined as follows:

In which the variables are defined as follows:

In the context of this problem, the values of these parameters are given as follows:

v = 235, θ = 55º.

The positions are given as follows:

Hence the components of the vector are given as follows:

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