NO LINKS!!!

Lin is trying to convince Andre that all circles are similar. Help her write a valid justification for why all circles are similar.

Answer:

Step-by-step explanation:

The average speed of the body in the given interval is 32 + 2z ft/s.

The average speed v of a body in an interval of z seconds can be calculated using the formula v = d/t, where d is the distance traveled and t is the time taken.

In this case, the distance d is (32z + 2z^ 2 ) ft and the time taken is z seconds.

Therefore, the average speed v of the body in this interval is:

v = (32z + 2z^ 2 ) ft / zs

v = 32 + 2z ft/s

Therefore, the average speed of the body in the given interval is 32 + 2z ft/s.

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Using simultaneous equations, each small candle costs $1.00 and each large candle costs $5.00.

Simultaneous equations are two or more equations solved concurrently.

Simultaneous equations are also known as a system of equations.

                 Small Candle   Large Candle   Total Cost

You buy             4                       2                    $14

A friend buys    5                       3                   $20

Let the cost of the small candle each = s and the cost of the large candle each = l

Equation 1: 4s + 2l = 14

Equation 2: 5s + 3l = 20

Multiply Equation 1 by 1.5:

Equation 3: 6s + 3l = 21

Subtract Equation 2 from Equation 3:

6s + 3l = 21

-

5s + 3l = 20

s = 1

= $1

From Equation 1:

4s + 2l = 14

4 + 2l = 14

2l = 10

l = 5

= $5

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A graph of the solution to this system of inequalities on a coordinate plane is shown in the image attached below.

In order to to graph the solution to the given system of inequalities on a coordinate plane, we would use an online graphing calculator to plot the given system of inequalities and then take note of the point of intersection;

4x - 3 < 9

x - 3y > 6

Based on the graph (see attachment), we can logically deduce that the solution to the given system of inequalities is the shaded region and the point of intersection of the lines on the graph representing each, which is given by the ordered pair (3, -1).

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The distance traveled during the given time interval be 2024 m.

An object's rate of change in velocity is referred to as its acceleration. The rate of change in velocity is known as acceleration. Acceleration typically signals a change in speed, though this is not always the case. Because of the shifting direction of its velocity, an item moving on a circular path at a constant speed is still accelerating.

By integrating the velocity v in terms of time t, v = gt, we can determine acceleration, which is the rate of change of velocity with respect to time.

Let the function be a(t) = t + 4

time = 11

substitute the value of t in the above equation, we get

a(11) = 11 + 6 = 17 m/s²

a = v/t, so v = at

finally v = (17 m/s²) (11s)

v = 187 m/s

b) Find the distance traveled during the given time interval

[tex]$$V_{total} = V_{final} - V_{ initial[/tex]

V final = 187 m/s, Vinitial = 3 m/s

V total = 187 - 3 = 184 m/s

Let the equation of velocity be

Velocity = distance/time

distance = velocity × time

distance = 184 m/s × 11 s

distance = 2024 m

Therefore, the distance traveled during the given time interval be 2024 m.

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The value of base angle θ (in degree) of the trapezium ABCD which has the greatest perimeter, is 60°

Given, AD = 2I

From ΔABD,

cos∅=[tex]\frac{AB}{AD}[/tex]

⇒ AB = AD cos∅

⇒ AB = 2I cos∅

and x = ABcos∅ = 2I [tex]cos^{2}[/tex]∅

Now perimeter,

P = 2I+ 2I - 2x + 2AB

P = 4I - 4I [tex]cos^{2}[/tex]∅ + 4Icos∅

P = 4I (1 - cos²∅ +  cos∅)

Differentiating with respect to ∅, we get

dP/d∅= 4I(2 cos∅ sin∅ - sin∅)

For max/min,

dP/d∅ = O

2 cos∅ sin∅ - sin∅ = 0

⇒ cos∅ = [tex]\frac{1}{2}[/tex]  (∅ [tex]\neq[/tex] 0)

            = 60°

[tex]d^{2}[/tex]P/d∅ = 4i(2 cos2∅ - cos∅)

[tex]d^{2}[/tex]P/d∅ < 0  

∅ = 60°

Therefore, Perimeter is maximum when ∅ = 60°

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Solving an equation we will see that Caitlyn used 3 of the 42-cent stamps and 9 of the 5-cent ones.

Let's define the variables that we will be using:

Then the total value of the stamps, in dollars, is:

x*0.42 + y*0.5

And we know that the value must be $1.71, then we can write the equation:

x*0.42 + y*0.05 = 1.71

y = (1.71 - x*0.42)/0.05

To find the values of x and y, we can just evaluate in different whole values of x, until we get a whole value of y.

using x = 1 we get:

y = (1.71 - 0.42)/0.05 = 2.58

This is not a solution.

if x = 3

y = (1.71 - 0.42*3)/0.05 = 9

This is the solution, she used 3 of the 42-cent and 9 of the 5-cent.

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The sums of the measures of the interior angles of a polygon is three times the sum of its exterior angles then it has 8 sides .

What is Polygon?

A polygon is a two-dimensional, closed form that is flat or planar and is limited by straight sides. Its sides are not curled. A polygon's edges are another name for its sides. The vertices (or corners) of a polygon are the places where two sides converge. Here are some illustrations of polygons.

What is interior angles?

Interior angles are those that are located within the confines of two parallel lines that are intersected by a transversal.

What is exterior angles?

The angles that are created outside of a triangle are its external angles. In other terms, the angle created between one of a triangle's sides and its neighboring extended side is the triangle's external angle.

We know that sum of interior angle of regular polygon is ;

(n-2) x 180°

Where n = no. of sides

We also know that sum of exterior angle of regular polygon is 360°.

The fact that the sum of a polygon's internal angles is three times the sum of its outside angles is now a given;

Therefore;

sum of interior angles of a regular polygon = 3 x sum of exterior angle

⇒ (n-2) x 180°

⇒3 x 360°

Simplify the equation we have above by:

⇒(n-2) = 3 x 360°/180° = 6

⇒ n = 6+2 = 8

Therefore the sides of the regular polygon  is 8.

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Comparibg the probabilities and interpreting the likelihood, the true statement is that:

A. Player 1 is more likely to hit the ball than Player 2 because P(Player 1) > P(Player 2)

Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur.

Player 1 = six tenths = 0.6

Player 2 = five ninths = 0.56

Player 3 four sevenths = 0.57

This shows that player 2 has the highest probability. The correct option is A.

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Answer:

9x + 21

Step-by-step explanation:

An equilateral triangle is a triangle with three equal sides. If we know the length of one side, we can find the perimeter by multiplying by three.

3(3x + 7) = 9x + 21

the length of the arc will be C/2π*Ф.

What is circle?

The measurement of the circle's boundaries is called as the circumference or perimeter of the circle. whereas the circumference of a circle determines the space it occupies. The circumference of a circle is its length when it is opened up and drawn as a straight line. Units like cm or unit m are typically used to measure it. The circle's radius is considered while calculating the circumference of the circle using the formula. As a result, in order to calculate the circle's perimeter, we must know the radius or diameter value.

The radius of a circle and its centre angle both affect how long an arc is. We are aware that the arc length and circumference are equivalent at an angle of 360 degrees (2). Due to the continuous relationship between angle and arc length, we can therefore state that:

L/Ф = C/2π

L = C/2π*Ф

Hence the length of the arc will be C/2π*Ф.

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The equation of  this parallel line is y = 4x - 22.  Railroad tracks, sidewalk edges, ladder rails, endless rail tracks, opposing sides of a ruler, opposite edges of a pen, an eraser, and other real-world objects are instances of parallel lines.

Since there is no "b" in the conventional equation y = mx + b, the line y = 4x has a slope of 4 and an intercept of 0. Any parallel line will have the same slope as the slope (m = 4) in this case. The slope of all parallel lines will be the same.

So let's return to the conventional format and replace the m with a "4".

y = 4x + b

Now that the values have been entered into the equation, let's solve for "b" using the point that sits on the line.

-6 = 4(4) + b

-6 - 16 = b

b = -22

The equation of  this parallel line is y = 4x - 22

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The 5 different colorings are possible.

The rectangle is partitioned into 5 regions.

The objective is to find the different of color.

There are 5 rectangle and 5 colors

Each region is to be painted a solid color-red. orange, yellow, blue, or green

Need to color 5 rectangles by using given five colors.

Then, we need to use 5! colors.

The factorial of a whole number is the function that multiplies the number by every natural number below it. Symbolically, a factorial can be represented by using the symbol "!". So, "n factorial" is the product of the first n natural numbers and is represented as n!

The formula for n factorial is:

=5×4×3×2×1

=120

Therefore, the possible colorings are 5.

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Answer:

False

Step-by-step explanation:

Converting

[tex] converting \: \frac{2}{3} \: to \: decimal \\ \frac{2}{3 } = 0.6666666 .....[/tex]

[tex]converting \: \frac{5}{12} \: to \: decimal \\ \frac{5}{12} = 0.4166666....[/tex]

[tex]therefore \: \frac{2}{3} > \: \frac{5}{12} \\ because \: 0.66666... > 041666...[/tex]

Answer:

[tex]\frac{25\pi}{2}\approx39.27\text{ units}^2[/tex]

Step-by-step explanation:

I assume your problem is [tex]\displaystyle \int\limits^{5}_{-5} {\sqrt{5^2-x^2}} \, dx[/tex]. Recognize that [tex]\sqrt{5^2-x^2}=\sqrt{25-x^2}[/tex] is a semi-circle directly above the x-axis with a radius of 5. The bounds cover the whole area of the semicircle, so its area is just half the area of a circle with a radius of 5. You probably know that the area of a circle is [tex]A=\pi r^2[/tex], so the area of a semicircle would be [tex]A=\frac{\pi r^2}{2}[/tex]. Thus, the area using geometry is [tex]A=\frac{\pi (5)^2}{2}=\frac{25\pi}{2}\approx39.27\text{ units}^2[/tex].

The correct answer is open angled bracket negative 16 over 5 comma negative 32 over 5 close angled bracket, as it is the vector u.

The projection of vector u onto vector v is given by the formula:

projv(u) = (u . v/||v||^2) * v

where u . v is the dot product of vectors u and v,and ||v|| is the magnitude of vector v

Given that u = <-10, -3> and v = <4, 8>, we can substitute these values into the formula and find projv(u)

projv(u) = ( (-10)(4) + (-3)(8) )/ (4^2 + 8^2) * <4,8>

projv(u) = ((-40 - 24)/ (16 + 64))* <4,8>

projv(u) = (-64/80) * <4,8>

projv(u) = (-4/5) * <4,8>

projv(u) = <-16/5,-32/5>

The vector u is already parallel to the vector v, that's why the projection of vector u on vector v is equal to vector u itself.

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Answer:

10th term = 94

Step-by-step explanation:

Given equation,

→ Tn = n² - n + 4

Now the 10th term will be,

→ Tn = n² - n + 4

→ T10 = (10)² - 10 + 4

→ T10 = 100 - 6

→ [ T10 = 94 ]

Hence, the answer is 94.

Answer:

Give the degree of the polynomial.

6x5+5x4−3x2+x7

Answers:

18

5

6

9

7

Hope it helps :)

The Volume of the solid obtained by rotating the region bounded by the curves is 5 cm³.

Volume of a solid plain:

The volume of a solid is a measure of the space occupied by an object. It is measured by the number of unit cubes required to fill the solid.

Given in the question:

y = 2 - 1/2x

y = 0 , x = 1 and x = 2

As we know that:

We can write 19π / 12 as

(19× 22/7 )÷ 12

=  209/ 42

= 4.97 ≈ 5 cm³

Therefore, the volume is 5 cm³

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The probability that the total weight of the passengers on a full flight exceeds 6000 pounds is about 0.0147 or 1.47%.

What is the Central Limit Theorem?

The Central Limit Theorem states that the sum of a large number of independent and identically distributed random variables is approximately Normally distributed.

(a) The reason why you cannot calculate the probability that a randomly selected passenger weighs more than 200 pounds is that the weight of passengers is not Normally distributed.

The Normal distribution is a symmetric bell-shaped distribution that is defined by its mean and standard deviation.

The weight of passengers is not symmetric and it may not follow a bell shape.

Therefore, we cannot use the Normal distribution to calculate the probability of a weight greater than 200 pounds.

(b) To calculate the probability that the total weight of the passengers on a full flight exceeds 6000 pounds, we can use the Central Limit Theorem.

Since we don't know the exact distribution of the weight of the passengers, we can use the Central Limit Theorem to approximate the total weight of the passengers on a full flight.

The mean weight of a passenger is 190 pounds, and the standard deviation is 35 pounds. Since a full flight carries 30 passengers, the mean weight of the passengers on a full flight is 19030 = 5700 pounds and the standard deviation is 35sqrt(30) = 175 pounds.

To find the probability that the total weight of the passengers on a full flight exceeds 6000 pounds, we can use the standard normal distribution table.

z = (6000 - 5700) / 175 = 2.2857

Probability P(X > 6000) = P(Z > 2.2857) = 1 - P(Z < 2.2857) = 1 - 0.9853 = 0.0147

Hence, the probability that the total weight of the passengers on a full flight exceeds 6000 pounds is about 0.0147 or 1.47%.

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Answer: 11/1000 o 1.1%

Step-by-step explanation:

11 ÷ 1000

0.011

11/1000 o 1.1%

When dividing 84 by 7 then the quotient does not have a reminder and the quotient will be 12.

What is division?

A division in mathematics is the process of dividing a specific amount into equal parts. The division is the inverse of multiplication.

We can find a division fact if we know a multiplication fact: For instance, 3 5 = 15, so 15 / 5 = 3.

Also 15 / 3 = 5.

Here given that,

We have to divide 87/7,

By dividing,

we know that 8/7 gives reminder 1, and a quotient of 1.

Then divide 14 by 7,

which gives reminder 0 and quotient 2.

So by dividing 84 / 7 we get reminder 0 with a quotient of 12.

Therefore the correct option is option A. With a quotient of 12.

Hence, When dividing 84 by 7 then the quotient does not have a reminder and the quotient will be 12.

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The constraints on the mining problem are 8.3x + 7.2y = 180

and 4x + 3y = 24

From the question, we have the following parameters that can be used in our computation:

This means that

Weight: 8.3x + 7.2y

Number of bins: 4x + 3y

From the question, we have

Capacity = 180 tons ot 24 bins

So, the constraints are

8.3x + 7.2y = 180

4x + 3y = 24

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A vector (u) with magnitude 4 in the opposite direction as v =⟨−2,3⟩ is u = ⟨-2/√13, 3/√13⟩.

A vector in the opposite direction of a given vector can be found by multiplying that vector by -1. The magnitude of a vector is the length of the vector and it can be found by using the Pythagorean theorem on the coordinates of the vector.

The magnitude of the vector v = ⟨-2,3⟩ is:

|v| = √(-2)^2 + 3^2 = √4 + 9 = √13

To find a vector with magnitude 4 in the opposite direction as v, we can first normalize the vector v by dividing it by its magnitude,

then multiply it by 4:

u = (-1) * (1/|v|) * v

= (-1) * (1/√13) * ⟨-2,3⟩

= ⟨2/√13, -3/√13⟩

So, a vector (u) with magnitude 4 in the opposite direction as v =⟨−2,3⟩ is u = ⟨2/√13, -3/√13⟩

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Answer: [tex]m\angle YOZ, m\angle VOS, m\angle UOZ, m\angle XOS, m\angle TOZ[/tex]

Step-by-step explanation:

[tex]m\angle VOS=90^{\circ}\\\\m\angle UOZ=180^{\circ}-56^{\circ}=124^{\circ}\\\\m\angle YOZ=180^{\circ}-143^{\circ}=37^{\circ}\\\\m\angle XOS=126^{\circ}\\\\m\angle TOZ=180^{\circ}-33^{\circ}=147^{\circ}[/tex]

The $31.309 money was spent on a pass and lunch for each student

Two or more expressions with an Equal sign is called as Equation.

School spends on a pass for each student,885.69/39

$22.97

School spends on a lunch for each student,

325.23/39

$8.339

Therefore, total money spent on a pass and lunch for each student

= 22.97 + 8.339

= $31.309

Hence, the $31.309 money was spent on a pass and lunch for each student

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The distance from G to the nearest point on the circle is going to be 5.61 cm.

The given figure (image attached below) has the segments GA and GB tangent to a circle at A and B, and AGB is at a 48-degree angle. We have been told that GA = 12 cm. We have to find the distance from G to the nearest point on the circle.

For this, first what we need to do is draw radii to A and B. Next draw OG which bisects the 48-angle G into two 24-angles. Let P be the point where OG intersects the circle. This becomes the distance from G to the nearest point on the circle which we need to find (image attached below).

In the right triangle AOG, radius AO is the side opposite angle AGO-

= Tangent = Perpendicular / Base

= tan(24) = r / 12

= r = 12tan(24)            (i)

For OG -

= cos(24) = Base / Hypotenuse = 12 / OG

= OG = 12cos(24)        (ii)

Now, we subtract (i) and (ii) -

= 12tan(24) - 12cos(24)    

= 5.61 cm

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The length of the side between the vertices A' and B' is 3.75 inches

In order to find the length of the side between the vertices A' and B', we need to use the fact that the ratio of corresponding side lengths between the pre-image and the image is the same as the ratio of the scale factor used in the dilation.

The ratio of the side length between the vertices B'C' and BC is 9/12. If we call this ratio k, then the ratio of the side length between the vertices A'B' and AB is also k.

So we can use the side length between AB = 5 inches and k = 9/12 to find the side length between A'B'

A'B' /AB = k

A'B' = k × AB

A'B' = (9/12) × 5

A'B' = 3.75 inches

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The length is about 7.2 feet, the width is about 4.8 feet, and the area is about 34.56 square feet.

The area is the entire amount of space occupied by a flat (2-D) surface or an object's form. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a form on paper is the area that it occupies.

Given that, The length and width of the model of the room are 4.5 in and 3 inches respectively.

Since Scale is 5 inches = 8ft

Thus the actual length of the room = 4.5*8/5 = 7.2 feet

the actual width of the room = 3*8 /5 = 4.8 feet

Since,

Area = length * width

Area of the room  = 7.2 * 4.8

Area of the room = 34.56 square feet

Therefore, The dimensions are roughly 7.2 feet long, 4.8 feet wide, and 34.56 square feet in area.

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