Solve for x. Round to the nearest tenth, if necessary.

Answer:

Bonjour, qui pourrait me donner la réponse de cette exercice s’il vous plaît c’est pour mon DM de maths.

Step-by-step explanation:

=========================================================

Explanation:

Break the 3D figure into two pieces:

The relevant formulas we need are:

where r and h are the radius and height respectively.

The cylinder has radius r = 5 and height h = 17.8

V = pi*r^2*h

V = pi*5^2*17.8

V = 445pi

The cone has the same radius, but the height is h = 24-17.8 = 6.2

V = (1/3)*pi*r^2*h

V = (1/3)*pi*5^2*6.2

V = (155/3)pi

The total volume is then,

445pi+(155/3)pi

(1335/3)pi + (155/3)pi

(1335/3 + 155/3)pi

(1490/3)pi

That's the exact volume of this pencil-shaped figure. This exact volume is in terms of pi.

----------

Now to compute the approximate volume.

If you were to use pi = 3.14, then the approximate volume is

(1490/3)pi = (1490/3)*3.14 = 1559.5333 cubic cm

Here's what my calculator shows when computing the expression.

(1490/3)pi = 1560.32435128293

The calculator has a stored version of pi with more digits for better accuracy.

Both of those results round to   1560  cubic cm     when rounding to the nearest cubic centimeter.

A chord is a combination of three or more tones (notes) played together.

To determine the notes in a chord, we need to calculate the intervals between the notes. An interval is the distance between two notes. Intervals are measured in half steps (or semitones). A half step corresponds to the interval between two adjacent keys of a piano.

In a major chord, the formula for determining the intervals is 1-3-5. This means the root note (1st note) is a major third (4 half steps) away from the 3rd note and a perfect fifth (7 half steps) away from the 5th note.

For example, if the root note is C, the 3rd note is E and the 5th note is G. The intervals in this chord are C to E (4 half steps) and C to G (7 half steps). Therefore, the chord is a C major chord.

In a minor chord, the formula for determining the intervals is 1-b3-5. This means the root note is a minor third (3 half steps) away from the 3rd note and a perfect fifth (7 half steps) away from the 5th note.

For example, if the root note is F, the 3rd note is Ab and the 5th note is C. The intervals in this chord are F to Ab (3 half steps) and F to C (7 half steps). Therefore, the chord is a F minor chord.

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The linear equation passing through both points is:

f(x) = 8x - 14 ,the quadratic equation passing through both points is:

[tex]f(k) = -1/28k^2 + 17/14k - 36/7[/tex]

Linear Equation:

f(x) = mx + b

Where, m is the slope and b is the y-intercept.

Calculation:

By substituting the two points (3,2) and (7,18) in the equation, we get:

2 = 3m + b

18 = 7m + b

Solving the equation we get:

m = 8

b = -14

Therefore, the linear equation passing through both points is:

f(x) = 8x - 14

Quadratic Equation:

f(k) = ax^2 + bx + c

Where, a, b and c are constants.

Calculation:

Substituting the two points (3,2) and (7,18) in the equation, we get:

2 = a(3)^2 + b(3) + c

18 = a(7)^2 + b(7) + c

Solving the equation we get:

a = -1/28

b = 17/14

c = -36/7

Therefore, the quadratic equation passing through both points is:

f(k) = -1/28k^2 + 17/14k - 36/7

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If there are 16 wins and 84 losses in 100 trials of simulation of rolling two dice, then the proportion of wins is 16%.

To determine the proportion of wins in 100 trials of rolling two dice, we need to divide the number of wins by the total number of trials and multiply by 100. In this case, the number of wins is 16 and the total number of trials is 100. So, the proportion of wins would be:

= (16 / 100) × 100

= 16%

So, the proportion of wins in 100 trials of this simulation is 16% and it has been rounded to two decimal places.

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Answer:

0.16

Step-by-step explanation:

Ava 2022

So on solving the provided question we cans say that probability that we got red balls is - P(R)  = 1/3

Probability theory, a subfield of mathematics, gauges the likelihood of an occurrence or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a complete set of equally likely possibilities that result in a certain occurrence compared to the total number of outcomes.

given,

red balls = 4

blue balls = 5

green balls = 3

Probability that we got red balls is -

P(R) = 4/12 = 1/3

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The respective answers are 1/3π r² h,  πr²h, (4 ⁄ 3) π r³

For a right circular cone of radius 'r', height 'h', and slant height 'l', we have; Curved surface area of the right circular cone = π r l. The total surface area of a right circular cone = π(r + l) r. The volume of a right circular cone = 1/3π r² h.

Given:

Volume of cone =1/3π r² h.

Volume of a cylinder= πr²h.

Volume of a sphere=(4 ⁄ 3) π r³

Volume of the ice cream cone≈100.53

Volume of the basket ball≈268.08

Volume of the cylindrical can=42.41

Hence, The respective answers are 1/3π r² h,  πr²h, (4 ⁄ 3) π r³

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Answer:To write a proportion as a percentage, you first convert it to a decimal and then multiply it by 100.

The proportion of Year 12 pupils in the music club is 32/85.

To convert to a decimal, divide 32 by 85:

32/85 = 0.376

To convert this decimal to a percentage, multiply by 100:

0.376 * 100 = 37.6

So, the proportion of Year 12 pupils in the music club as a percentage is 37.6%.

To convert a proportion to a percentage, you can multiply it by 100.

The proportion of Year 12 pupils in the music club can be represented as 32/85.

Multiplying by 100, we get:

(32/85) * 100 = 37.65

So, 37.65% of the pupils in the school are Year 12 pupils in the music club.

Rounded to 1 decimal place, the answer is 37.7%.

The translation applied to the point Q is:

T(-3, -2)

(decreases by 3 the x-value and decreases by 2  the y-value)

A general translation T(a, b) (that can be applied to a point (x, y)) is defined as:

T(a, b)[ (x, y)] = (x + a, y + b)

So, in this case we know that we apply a translation T(a, b) to our point Q (6, 4), and the image that we get is Q' (3, 2)

So we can write the equation:

T(a, b)[ (6, 4)] = (6 + a,  4 + b) = (3, 2)

Now we can solve that to get the values of a and b.

6 + a = 3

a = 3 - 6 = -3

And:

4 + b = 2

b = 2 - 4 = -2

Then the translation in this case is:

T(-3, -2)

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At the highest level of discrete value two kinds of data which are  exists as quantitative and qualitative.

Quantitative data which deals with numbers and things that can be measure objectively that are dimensions such as height, width, and length. Temperature as well as  humidity. Prices. Area and volume. Qualitative data deals with characteristics and descriptors that can't be easily measured, but can also be observed subjectively such as smells, tastes, textures, attractiveness, and color. if we measure something and give it a number value, we create as  quantitative data. When we classify or judge something, we create qualitative data.  hence  the highest level of data are also different types of quantitative and qualitative data. There are two types of quantitative data, which is also said  as numeric data of continuous and discrete. in general rule, counts are discrete and measurements are continuous. Discrete data  count that can't be made as more precise. Typically it involves the number of  integers. For  at instance

Continuous data, on the other hand, of variable  could be divided and reduced to maximally of  finer and finer levels.

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There are two types of relative extremas for a function, described as follows:

On the graph, these relative extremas of a function are the turning points of the function.

The function for this problem is defined as follows:

f(x) = 2x³ - 39x² + 180x + 4.

For the function defined in this problem, the graph is given by the image presented at the end of the answer, with the points representing the relative extremas marked.

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Therefore , the solution of the given problem of trigonometry comes out to be cot(θ) = 9/5.

The link between the squares spline and trigonometric The field is thought to have been created with in late 1700s, however it probably got its start in the third century BC through the union of the astronomical & mathematical sciences. Precise mathematical approaches can be used to solve a wide variety of geometric equations or to calculate things that they might be used in. The six fundamental trigonometric operations are what trigonometry is all about.

Here,

Given : tan(θ) = y/x

Given that the termination side in this instance traverses (-9, -5), the tangent is as follows:

tan(θ) = -5/-9 = 5/9

The cotangent is hence the tangent's inverse:

=> cot(θ) = 1/tan(θ) = 9/5.

Therefore , the solution of the given problem of trigonometry comes out to be cot(θ) = 9/5.

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There are three main steps for solving an absolute value equation isolate the absolute value expression, split the equation into two cases and solve the case.

Isolate the absolute value expression: Start by isolating the absolute value expression on one side of the equation. This can be done by adding or subtracting a constant from both sides of the equation, or by dividing or multiplying both sides of the equation by a constant.

Split the equation into two cases: Once the absolute value expression is isolated, you need to split the equation into two cases: one for when the absolute value is equal to the positive value of the expression inside it, and one for when it is equal to the negative value.

Solve each case: For each case, you will have an equation. Solve it like any other equation and find the solutions.

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The curve is concave upward for t values greater than zero, according to the assertion made.

Curve, An abstract phrase used to characterize the trajectory of a series of movements particle in mathematics (see continuity). Usually, an equation will create such a route. The term may also be used to describe a linear model or a collection of connected line segments. The IS curve displays combinations of borrowing costs and production levels where anticipated expenditure and income are equal. The many interest and income configurations along which is something the goods market is still in equilibrium are represented by the IS Curve.

dx/dt = e^t

dy/dt = -te^-t + e^-t

so dy/dt X dt/dx = dy/dx= -te^-t + e^-t /e^t = -t e^(-2t) + e^(-2t)

d2y/dx2 = -dt/dx e^(-2t) +2 t e^(-2t) dt/dx -2e^(-2t) dt/dx

= -e^(-3t) +2te^(-3t) -2e^(-3t)

-t e(-2t) + e(-2t) >0 for curved dy/dx >0

=> t<0 the curve is concave.

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Answer:

n=3

Step-by-step explanation:

324/2^ n. = 30

324/30 = 2^n

Log 324/30 = Log 2^n = n x Log2

n = Log 324/30 ÷ Log 2

n = 3.43...

as n musg be an integer, thus

take n=3. or 4 will makd the midel height cliase to 30m

Answer: The overall average of the weights is 24 pounds.

Step-by-step explanation:

To find the overall average of the weights, we need to calculate the weighted mean. A weighted mean is a type of average that takes into account the number of items or observations in each group.

In this case, we know that the average of the first 3 weights is 20 pounds and the average of the next 12 weights is 25 pounds.

To find the overall average, we will use the following formula:

( (number of items in first group * average of first group) + (number of items in second group * average of second group) ) / (number of items in first group + number of items in second group)

The formula can be applied as:

( (3 * 20) + (12 * 25) ) / (3 + 12) = (60 + 300) / 15 = 360 / 15 = 24

- C

The information can be interpreted as,

y = 40 x [tex]3^{x/11}[/tex].

Where y is the number of bacteria and x is the number of hours.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Number of bacteria initially = 40

The number of bacteria triples every 11 hours.

Now,

The number of bacteria after x hours.

= 40 x [tex]3^{x/11}[/tex]

Where x is the number of hours.

Thus,

The expression for the number of bacteria in x hours is 40 x [tex]3^{x/11}[/tex].

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On solving the provided question, we can say that when the test statistic is chi-squared distributed under the null hypothesis, a statistical hypothesis test known as a chi-squared test

A null hypothesis is a kind of statistical hypothesis that asserts that a specific set of observations has no statistical significance. Using sample data, hypotheses are tested to determine their viability. Sometimes known as "zero" and symbolized by H0. Researchers start off with the presumption that there is a link between the variables. In contrast, the null hypothesis claims that there is no such association. Although the null hypothesis may not appear noteworthy, it is a crucial component of research.

When the test statistic is chi-squared distributed under the null hypothesis, a statistical hypothesis test known as a chi-squared test—more specifically, Pearson's chi-squared test and its variations—is valid to execute.

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Answer:

Step-by-step explanation:

The volume on the shape on top is 10x3x8=240

The volume of the shape is 3x5x6=90

The bottom shape is 8x5x2=80

the total volume is 240+90+80=410

The center and vertices of the ellipse x² + 9y² + 16x - 54y + 136 = 0 is

Generally, The standard form of the equation of an ellipse is (x-h)^2/a^2 + (y-k)^2/b^2 = 1, where (h,k) is the center of the ellipse and a and b are the semi-major and semi-minor axes respectively.

To convert the given equation to standard form, complete the square by adding and subtracting constants to both sides: x² + 16x + 81 + 9y² - 54y + 324 = 410

This results in: (x + 8)²/16 + (y - 3)²/9 = 1

Therefore, the center of the ellipse is (h,k) = (-8,3) and the semi-major and semi-minor axes are a = 4 and b = 3.

To find the vertices of the ellipse, substitute the center coordinates into the equation of the ellipse and solve for x and y. Since the semi-major and semi-minor axes are 4 and 3, respectively, the vertices are located at: (h ± a, k) = (-8 ± 4, 3) and (h, k ± b) = (-8, 3 ± 3)

Therefore, the vertices of the ellipse are (-12,3) and (-4,3), (-8,6) and (-8,0).

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So on solving the provided question we can say that in the equation 15x - y = 25; x = 24/15

An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence. In algebra, an equation is a mathematical statement that establishes the equivalence of two mathematical expressions. For instance, an equal sign separates the components 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula is used to explain the connection between two sentences on either side of a letter. Frequently, there is just one variable, which is also the symbol. for example, 2x - 4 = 2.

here,

15x - y = 25

so from provided data we have y = 1

15x - 1 = 25

15x = 24

x = 24/15

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Answer:Your mom

Step-by-step explanation:big

Therefore , the solution of the given problem of trigonometry comes out to be 52.1 m separates the two buildings.

When it comes to trigonometry, the relationship between squares spline and The field is believed to have originated in the late 1700s, more likely beginning with in third century BC, through the fusion of astronomical and mathematical sciences. Numerous geometric equations or their possible uses in calculations are covered by precise mathematical techniques. The subject of trigonometric are the six basic trigonometric operations.

Here,

=> tan 33.9° = adjacent / opposite

=>Tan 33.9 = 35 / adj

=>0.6719=35/adj

=>adj=35/0.6719

=> adj=52.1 m

Consequently, 52.1 m separates the two buildings.

Therefore , the solution of the given problem of trigonometry comes out to be 52.1 m separates the two buildings.

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The simple interest on 17,000 loan for 10 years will be 11,900

Solution:

As we know,  simple interest is the interest amount for a particular principal amount of money at some rate of interest.

Here given ,

Principle (P) = 17,000

Rate of interest (R) = 7%

Time (T)= 10 years

Simple Interest = (RxRxT)/100

Therefore,

S.I. = ( 17,000 x 7 x 10 ) / 100

     = 11,900

Hence,

The simple interest at the end of 10 years will be 11,900

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The total number of children Mr. and Mrs. Jones are having is 13 children.

A set comprises elements or members that can be mathematical objects of any sort, including numbers, symbols, points in space, lines, other geometric forms, variables, or even other sets. A set is the mathematical model for a collection of various things.

In set theory, the set containing every element in a collection is the union of all its sets. It is one of the fundamental operations that allows sets to be joined together and connected to one another. A union of zero sets is referred to as a nullary union, because it is by definition equivalent to the empty set.

The symbol "∩" can be used to represent the intersection of sets. According to the definition given above, the intersection of two sets A and B is the collection of all the items that are shared by both sets.

8 refused to go to the family cottage = set A

7 refused a resort spot on the ocean. = Set B

9 refused a camping trip. = Set C

3 will go neither to the family cottage nor the resort = A∩B

4 will go neither to the resort nor on a camping trip = B∩C

6 will go neither to the family cottage nor on a camping trip = A∩C

2 will not go to the family cottage, the resort spot on the ocean or the camping trip = A∩B∩C

The total number of children = A + C - (A∩B + B∩C + A∩C) + A∩B∩C

= 8+7+9 -(3+4+6) + 2 = 13

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Answer:

The y-intercept is 450, and it represents how much money he has in his account when he starts out with 0 essays proofread

Step-by-step explanation:

Looking at the standard slope-intercept equation, we see:

y = mx + b

Where b is the y-intercept. In our equation, our b is replaced by 450:

y = 15x + 450

So, the y-intercept is 450, and it represents how much money he has in his account when he starts out with 0 essays proofread.

Hope this helped!

Answer:

Step-by-step explanation:

Since the line segment RST is perpendicular to OM, the length of RT can be determined by using the Pythagorean Theorem.

Let RT = x

We know that:

OS = OM - OS = 7 cm

Using the Pythagorean Theorem, we can solve for x:

x^2 = OS^2 + RT^2

x^2 = (7 cm)^2 + x^2

2x^2 = 49 cm^2

x^2 = 24.5 cm^2

x = √24.5 cm = 4.94 cm

Therefore, the length of RT = 4.94 cm

On a graph, the absolute value of a number is always non-negative.

The absolute value of a number is defined as the distance of that number from zero on the number line. Since the distance can never be negative, the absolute value of a number is always non-negative.

This is reflected in the graph of an absolute value function. The graph of an absolute value function, |x| is a V-shape that opens upward, with the vertex of the V being the point where the absolute value function equals zero. The two arms of the V extend out from this point, going in opposite directions along the number line. The coordinates of the vertex (0,0) and the graph is always non-negative.

It's important to note that although the absolute value is always non-negative on a graph, the input value (x) can be both positive and negative. The output of the absolute value function (|x|) will always be positive.

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Answer:

Step-by-step explanation:

The answer is [−3,3]. The average rate of change of f(x)=x^2+10 over an interval [a,b] is given by (f(b)-f(a))/(b-a). Since f(x)=x^2+10 is a polynomial of degree two, it is always increasing, and so its average rate of change is always positive. Thus, the average rate of change of f(x) over any interval [a,b] where a<b is positive, so the answer is [−3,3].

Step-by-step explanation:

that depends on the type of triangle and what other pieces of information you have about the triangle.

I think you might aim for the geometric mean theorem.

it is the relation between the height on the hypotenuse in a right triangle and the two line segments (p, q) it creates on the hypotenuse (= p + q).

height = sqrt(p×q)

Daryl's weekly allowance, given the amount he ended with and the amount spent on clothes, is  $ 30

To find the weekly allowance, first find the amount that Daryl had after he had spend half his allowance on clothes. This amount can be found by the formula:

= Amount Daryl ended with - Amount gotten from cleaning oven

= 25 - 10

= $ 15

The amount of $ 15 is the amount out of Daryl's weekly allowance that he had after he had spent on clothes. The $15 is therefore half of the weekly allowance which means that the weekly allowance is:

= 15 x 2

= $ 30

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