what is the volume of a hemisphere with a radius of 6.4 ft, rounded to the nearest tenth of a cubic foot

The proportion of the output that is unacceptable is; 0.32

The empirical rule of statistics is also called the 68 - 95 - 99.7 rule, and it states that states that for normal distributions, 68% of observed data points will lie inside one standard deviation of the mean, 95% will fall within two standard deviations of the mean, and 99.7% will occur within three standard deviations of the mean.

We are told that the target diameter is 50 mm.

Mean; μ = 50 mm

Standard deviation; σ = 0.07 mm

An acceptable diameter is one within the range 49.93 mm to 50.07 mm. Thus;

50 ± x(0.07) = (49.93, 50.07)

Thus;

50 - 0.07x = 49.93

0.07x = 50 - 49.93

x = 0.07/0.07

x = 1

Thus, the proportion that is acceptable is 68% or 0.68.

Proportion unacceptable = 1 - 0.68 = 0.32

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The parallelogram with the parametric equations 1 + 2u + v is the surface integral.

The surface element is

dS is equal to || r/u x r/dv || du dv.

where

r (u, v) is equal to x (u, v) I plus y (u, v) j plus z (u, v) k

r (u, v) = (u + v) I plus (u -v) j plus (1 + 2u + v) k

is the surface S's vector parameterization.

The surface's normal vector is

R / u x R / d

= I + j + k + 2) x I - j + k)

= 3 I + j - 2 k

as well as norm

|| r/dv x u r/u || = √(3² + 1² + (-2)²) = √(14) (14)

Calculate the integral now:

∫∫ (x + y + z) dS = √(14) ∫₀¹ ∫₀² (1 + 2u + v) = ((u + v) + (u - v)) du dv

= (14)... 01... 02 (3u + v + 1) du dv

= (14), 01 (3/2 u2, uv, and u), |02 dv

= √(14) ∫₀¹ (8 + 2v) dv

= √(14) (8v + 2v²) |₀¹

= 10 √(14) (14).

The parallelogram with the parametric equations x = u + v, y = u â' v, and z = 1 + 2u + v is the surface integral.

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Based on the given information , the proof of triangle PQR ≅ triangle PSR is shown below .

In the question ,

two triangles PQR and PSR are given where ;

it is given that side  QR ≅ SR

and  PQ ≅ PS .

we have to prove that ΔPQR congruent to ΔPSR .

In triangle PQR and triangle PSR .

side QR = side SR              .....given that QR ≅ SR ;

side PQ = side PS              .....given that PQ ≅ PS ;

side PR = side PR              .....because PR is the common side ;

Hence by SSS congruence , triangle PQR ≅ triangle PSR .

Therefore , it is proved that  triangle PQR ≅ triangle PSR  .

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Each of the three choices has a 12.25 standard deviation average returns during a 4-year timeframe.

In order to find standard deviation on a mutual fund, add up the rates of return for the period you want to measure and divide by the total number of rate data points to find the average return and take each individual data point and subtract your average to find the difference between reality and the average finally we have to square each of this numbers and then add them up.

Here, we had provided the predicted return on the asset, the standard deviation,

s x 10% 5%

y 15    8

Here we need to calculate the standard deviation of returns over the 4-year period for each of the three alternatives.

As per the definition of the standard deviation, we have identified that the values,

Count, N: 2

Sum, Σx: 23

Mean, μ: 11.5

Variance, σ2:  12.25

Here, we must embrace the alternative hypothesis that seems to be rejected hypothesis. The rejection zone is indicated by the z score of -0.40.

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Using ratio and scale factor, the value of x is 31 mm

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

This is a term that is used to compare two or more numbers. It is used to indicate how big or small a quantity is when compared to another. In a ratio, two quantities are compared using division.

The value of x that will make the figure similar can be calculated by multiplying the smaller figure by the scale factor.

To determine the scale factor, let's find the ratio between two similar sides

scale factor = 29 / 14.5

scale factor = 2

The value of x will be 2 * 15.5 = 31 mm

The value must be 31mm

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The weight of the baseball equipment will be 39/5 pounds.

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A container that weighs 23 2/5pounds holds sports equipment.

And, Of the equipment in the container, of the 1/3 weight is baseball equipment.

Now,

Since, A container that weighs 23 2/5pounds holds sports equipment.

And, Of the equipment in the container, of the 1/3 weight is baseball equipment.

Hence, The weight of the baseball equipment = 23 2/5 × 1/3

                                                                         = 117/5 × 1/3

                                                                         = 39/5 pounds

Thus, The weight of the baseball equipment =  39/5 pounds

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Using the null hypothesis test we calculate that variance is less than 6.25 .

Data sample is 0.05.

20 people make up the sample.

And ,

The theories are:

H₀ : μ² = 6.25

H₁ : μ² < 6.25

The critical value = 10.117.

If the test statistic is less than this number, the null hypothesis will be rejected. When the p-value is less than or equal to your significance level, we reject the null hypothesis. The alternative theory, which contends that the effect is widespread, is supported by your sample data. The null must be removed when the p-value is low, as a mnemonic device.

This is the test statistic:

2.976 × 19 / 6.25 = 9.047.

Therefore, we disregard the null hypothesis. The difference is less than 6.25 since it is not 6.25.

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This triple integral gives the volume of the right circular cylinder which is enclosed by the given surfaces and extends from z = 0 to z = -10.

What in mathematics is an integral?

Mathematicians define an integral as either a number equal to the area under the graph of a function for a certain interval or as a new function whose derivative is the original function (indefinite integral).

                       In general, the word "integral value" refers to the result of integrating or summing the terms of a function that has an infinite number of terms.

The triple integral that gives the volume of the right circular cylinder enclosed by the surfaces x^2 + y^2 = 4 , z=-10 and z=0 is:

∫∫∫dV = ∫∫∫dx dy dz

where the limits of the integration are:

0 ≤ x ≤ 2*sqrt(2), -2*sqrt(2) ≤ y ≤ 2*sqrt(2), 0 ≤ z ≤ -10.

This triple integral gives the volume of the right circular cylinder which is enclosed by the given surfaces and extends from z = 0 to z = -10.

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The total cost of chocolate sprinkles is $800

Place value charts

This is an implementation of the numeral system that shows the value of each digit in a number using their positions

WHAT IS IMPLENTATION?

What do you mean implementation?

Implementation is the execution or practice of a plan, a method or any design, idea, model, specification, standard or policy for doing something. As such, implementation is the action that must follow any preliminary thinking for something to actually happen.

From the complete question, we have the following parameters:

Unit rate = $8.00

Total pounds = 100

Total cost of chocolate sprinkles

So, the total cost of chocolate sprinkles is calculated using the following formula

Multiply both sides of the equations by 100

Hence, the total cost of chocolate sprinkles is $800

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According to Riemann sum and expressing the work as an integral,400 ft/lb work is done in pulling the rope to the top of the building.

Given,

heavy rope length = 40ft

weighs = 0.5 lb/ft

building height = 90 ft

If we divide rope into small parts with length Δx, rope weighs 0.5 lb/ft force work on each section is x*i is a point in i the such intervals.

The work done on ith part is

                                          x*i0.5Δx

So the total done is

[tex]\lim_{n \to \infty}[/tex]= ∑0.5x*iΔx expressing work as an integral

         [tex]\int\limits^40_0 {(0.5x)} \, dx[/tex] = [0.5 × x²/2]

                             = [0.5 × 40²/2 - 0.5 × 0²/2]

                             = [0.5 × 1600/2 - 0]

                             =  0.5 × 800 - 0

                             = 400 - 0

                             = 400 ft/lb

The work done in lifting the pieces in upper half of rope is

  x*i0.5Δx

The work done in lifting lower half of the rope is

0.5Δx × 20

10Δx

Total workdone,

                 [tex]\lim_{n \to \infty}[/tex]∑0.5x*iΔx + [tex]\lim_{n \to \infty}[/tex]∑10Δx

                = [tex]\lim_{n \to \infty}[/tex]∑(0.5x*i + 10)Δx work as an integral

[tex]\int\limits^25_0 {0.5} \, dx[/tex] + [tex]\int\limits^50_25 {10} \, dx[/tex]

= [ 0.5 * x²/2] + [10x]

= [0.5 * 20²/2] +[10(40-20)]

= [0.5 * 400/2] + [10*20]

= 100 + 200

= 300 ft/lb

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Answer:

y + x = 87

y = x + 35

x = 26

y = 61

Step-by-step explanation:

y + x = 87

y = x + 35

substitute y with x + 35 in the first equation:

(x + 35) + x = 87

2x + 35 = 87

2x = 87 - 35

2x = 52

x = 52/2

x = 26

Find y by substituting x with 26:

y = (26) + 35

y = 61

The probability is 0.2005.

What is a probability distribution?

A probability distribution is a function that describes the probabilities of different outcomes in a random event or experiment. It is used to represent the likelihood of different outcomes occurring in a given situation.

Mean = 650 * 200 = 130000

[tex]\sigma \bar x = \sqrt{n}\times\sigma\\\\=\sqrt{200}*420\\=5939.6970\\\\\\P(X < 125000)=P[Z < \frac{125000-130000}{5939.6970}]\\\\P(X < 125000)=P[Z < \frac{-5000}{5939.6970}]\\\\P(X < 125000)=P[Z < -0.84]\\\\P(X < 125000)=0.2005[/tex]

Hence, the probability is 0.2005.

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TRUE - Procedure 2 has a larger test statistic and therefore will result in stronger evidence in favor of the alternative hypothesis.

Degrees of freedom are the maximum number of logically independent, or potentially different, values in the sample of data. One is subtracted from the number of elements in the data sample to determine the degree of freedom.

There are degrees of flexibility in the third column. Degrees of freedom (df1) between treatments equals k-1. df2 = N - k is the degree of freedom for the error. The total degree of freedom is N-1; additionally, (k-1) plus (N-k) equals N-1.

Fisher's Least Significant Difference (LSD) and the Bonferroni Method stand out among the techniques. These two use the t-test as their foundation. According to Fisher's LSD, run an F-test first, then if you find evidence to reject the null hypothesis, run regular t tests on all possible pairs of means. Similar but only requiring that you choose beforehand is the Bonferroni technique.

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Answer:

its the

Step-by-step explanation:

Answer:

I think the answer is B

Step-by-step explanation:

1.2 * 10^6 is 1,200,000

1.38 * 10^7 is 13,800,000

you just have to divide 13,800,000 by the numbers until you get to 1,200,000. So, 13,800,000 / 11.5 is 1,200,000

Hope this helps! Have an amazing day :)

Answer:

11.5

Step-by-step explanation:

we will need to divide both of them

1.38 × 10^7 ÷ 1.2 × 10^6

1.38÷1.2 × 10^7-6

= 1.15 × 10¹

= 11.5

Mathematics is a discipline that has a long and rich history. It has evolved over time from simple counting and measuring to a broad and complex subject that is used in many fields. The development of mathematics has been driven by the need to solve practical problems, as well as the desire to understand the underlying patterns and structures of the world around us.

Early forms of mathematics, such as counting and measuring, were developed by ancient civilizations to solve practical problems such as trade, construction, and agriculture. These early forms of mathematics were based on empirical observations and were often tied to the physical world.

As mathematics developed, it began to include more abstract concepts such as numbers, geometry, and algebra. These abstract concepts allowed for the development of more complex mathematical techniques and the ability to solve a wider range of problems.

Today, mathematics is used in a wide range of fields including science, engineering, economics, and even art. It is an essential tool for understanding and solving problems in the world around us.

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the vector function represents the curve of the intersection between a cylinder and a plane in 3-dimensional space.r(t) = (cos(t), sin(t), 2t)

The vector function represents the curve of the intersection between a cylinder and a plane. The function is given by r(t) = (cos(t), sin(t), 2t). This means that the x-coordinate of the point on the curve is given by cos(t), the y-coordinate of the point on the curve is given by sin(t), and the z-coordinate of the point on the curve is given by 2t.

The parameter t is defined as t [tex]$\in$[/tex] [tex][0, $\pi$/2],[/tex] which means that the domain of t is from 0 to [tex]$\pi$[/tex]/2. Therefore, the vector function represents the curve of the intersection between a cylinder and a plane in 3-dimensional space.

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By solving the mean value theorem, the value of c in the interval (1,2) is 0.75.

Explanation:

The mean value theorem states that if a function f(x) is continuous on a closed interval [a,b] and differentiable on the open interval (a,b), then there exists at least one point c in (a,b) where the equation f'(c) = (f(b) - f(a))/(b - a) is satisfied.

For the specified interval (1,2) and given equation 1.2/x - 1.6, we can rearrange the equation to solve for c:

1.2/c - 1.6 = 0

1.2/c = 1.6

c = 1.2/1.6

c = 0.75

Therefore, the value of c in the interval (1,2) is 0.75.

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Answer:

[tex]-1 < x < 0\\0 < x < 1[/tex]

Step-by-step explanation:

At those range, the slope is negative. As the line is going right, it is going down.

The true statement regarding the equation x² + y² - 3x + 6y = 7x + 2 is that it has a area of 36π sq. unit ,  correct option is (b) .

In the question ,

it is given that ,

the equation is x² + y² - 3x + 6y = 7x + 2 ,

On simplifying and rewriting the equation ,

we get ,

x² - 10x + 25 + y² + 6y + 9 = 36

further it can be written as ;

(x - 5)² [tex]+[/tex] (y [tex]+[/tex] 3)² [tex]=[/tex] 36

(x - 5)² + (y + 3)² = 6²

the equation represents a circle .

So , the from the above equation we can conclude that :

the center of the circle will be  = (5,-3) .

the radius is = 6 units .

the diameter will be = 12 units , and

the area of the circle will be = πr² = 36π square units .

So , the statement that matches with the information is that the area is 36π square units .  

Therefore , the True statement is (b) it has a area of 36π sq. units  .

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The mark-up, as a percentage =80%

What is Markup?

The term "markup" describes the discrepancy between a product's selling price and its actual cost. It is specified as a percentage over the price. In other words, the seller makes a profit when the price of the commodity.

A unit's gross profit, which is the sales price less the cost to create or buy it for resale, is divided by its cost to determine the markup %. The markup percentage is computed as (12 - 8) / 8 and is equal to 50% if an item costs the business $8 to produce but is sold for $12.

Markup percentage = [(selling price - unit cost)/unit cost]*100

                                 = [(900-500)/500]*100

                                 =  [ 400/500] *100

                                 = 80%

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The value of x will be;

⇒ x = 6

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

Given that;

The expression is,

⇒ 5 1/2x + 2/3x = 37

Now,

Since, The expression is,

⇒ 5 1/2x + 2/3x = 37

Solve for x as;

⇒ 11/2x + 2/3x = 37

⇒ (33 + 4)x/6 = 37

⇒ 37x = 37 × 6

⇒ x = 6

Thus, The value of x = 6

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standard form: 6x+y=-40

Answer:

y= -6x-40

Step-by-step explanation:

standard form is y=mx+b

y+4= -6(x+6)

y+4= -6(x) -6(6)

y+4= -6x-36

-4.        -4

y= -6x-40

hopes this helps have a great day

Answer:

The function f(x) in slope-intercept form is Y= −3X−10.

In the given question, linear function f, f(2)=0 and f(4)=-6.

We have to write function f(x) in slope-intercept form.

We have to find equation for f(x)

f(2)=0, and f(4)=−6,

Now we have to find slope

Slope(m)=−6−0/4−2

m = −6/2

m=−3

Now the general equation of line is

Y=MX+C

where M = slope of the line, C is the Y intercept value, X is independent variable and Y is dependent variable.

At point (2,4)

4 = (−3)×(2)+C

4 = −6+C

Add 6 on both side, we get

C = 10

Equation for f(x) is.

Y=(−3)X−(10)

Y= −3X−10

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let P as the amount of tripod

12(32 + P) = 552

384 + 12P = 552

12P + 384 - 384 = 552 - 384     (subtract 384 from both sides)

12P = 168

P = 14

12(32 + 14) = 552

12(46) = 552

552 = 552

Therefore, the amount of one tripod is $14.

Step-by-step explanation:

the height of a binary tree is the number of edges in the longest path from the root to a leaf.The best-case height of a binary tree with seven nodes is 3.

A binary tree is a type of tree structure consisting of nodes that are connected by edges. The number of edges in the longest path from a binary tree's root to a leaf determines the tree's height.In the best-case scenario, the binary tree is perfectly balanced and each node has exactly two children. With seven nodes, the best-case height is three because each node has two children and three edges connect the root node to the leaves. This means that the longest path from the root to a leaf is three edges, resulting in a height of three.

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The value of the variable 'x' in the given isosceles right angle triangle is 2√2. By applying the Pythagoras theorem, we get the required value.

An isosceles right angle triangle has a right angle and equal lengths of two sides. (the other two angles are also the same in measure for an isosceles triangle).

Given triangle has two angles of 45° and one angle of 90°, then the triangle is "an isosceles right angle triangle.

It is also given that, hypotenuse h = 4 and the opposite side is given by x.

Since it is an isosceles right triangle, the two sides are also equal in measure.

I.e., opposite side length = adjacent side length = x

Then, applying the Pythagoras theorem, we get

h² = (opp)² + (adj)²

⇒ (4)² = x² + x²

⇒ 16 = 2x²

⇒ x² = 8

∴ x = 2√2

Thus, the value of the length x = 2√2.

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False.It represents that a is parallel to b.