the composer beethoven wrote 9 symphonies, 5 piano concertos (music for piano and orchestra), and 32 piano sonatas (music for solo piano). (a) how many ways are there to play first a beethoven piano concerto and then a beethoven symphony?

Answer:

3.5

Step-by-step explanation:

rate of change=

change in x

change in y

​

=

20

438

​

=21.9

y=18.4x

Tanisha−Zoey=

\,\,21.9-18.4

21.9−18.4

=

=

3.5

3.5

Answer:

Y = 32.7°

Step-by-step explanation:

We will apply the Cosine law in the given triangle XYZ,

x = 90 ft

y = 55 ft

z = 50 ft

We have to find the measure of angle Y.

y² = x² + z² - 2xzCosY

(55)² = (90)² + (50)² - 2(90)(50)cosY

3025 = 8100 + 2500 - 9000.cosY

9000.cosY = 10600 - 3025

cosY = \(\frac{7575}{9000}\)

        = 0.84167

Y = \(\text{cos}^{-1}(0.84167)\)

Y = 32.68 ≈ 32.7°

Therefore, measure of angle Y = 32.7°

Answer:

Step-by-step explanation:

85 which is <UTY is vertically opposite <RTS makes RTS = 85

So 3 is + 85 = 180    Substitution

2x + 3x + 85 = 180

5x = 95

x = 95/5

x = 19

Bucket number 2 will contain 45 after sorting the data.

According to the statement, we are given that a data list is sorted using bucket sort with 4 buckets and we have to find which bucket will contain the number 45.

So, the given data list is:

76, 56, 93, 24, 45, 88, 13, 7, 37

The list of data is sorted into buckets and the data contains numbers from 0 to 100.

We know that the 100 numbers are being sorted with 4 buckets which means each bucket contains 25 numbers.

So, let us consider

BUCKET 1: 0 to 25

It contains data numbers 7, 13, and 24.

Now,

BUCKET 2: 25 to 50

It contains data numbers 37 and 45.

Now,

BUCKET 3: 50 to 75

It contains data number 56.

Now,

BUCKET 4: 75 to 100

It contains data numbers 76, 88, and 93.

From sorting, the 45 number sort in bucket 2.

So, bucket number 2 will contain 45 after the list is sorted.

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Answer:

Step-by-step explanation:

''he Law of Sines is the relationship between the sides and angles of non-right (oblique) triangles . Simply, it states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle.''

The best approximation value of a by using sine rule is 3.0cm. so option C is correct.

The sides and angles of non-right triangles are related according to the Law of Sines.

The relationship between the angles and lengths of the sides:

a/sinA = b/sinB = c/sinC

We know according to law of sines:

a/sinA = b/sinB = c/sinC

by putting the values we can write,

a/sin40° = 4.7/sin95°

a = (4.7 ×sin40°)/sin95°

  =  3.032

by putting the value of Sin40° and Sin95°.

we get a = 3.03cm.

Approximation value of a is 3.0cm.

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The complete question:

what is the best approximation of the value of a?

2.4 cm

2.7 cm

3.0 cm

3.3 cm

Given triangle ABC with ∠BAC=40°, ∠ABC=95°,AC = 4.7cm, BC = a cm.

Answer:

D to E is apparently 104 degrees , G looks like it has the same measurements , so the unknown measurements will be 74 degrees,

Step-by-step explanation:

Answer:

n+8+6

Sum means = and and means + so n+8+6

Answer:

Do 15^2 +10^2=c^2 than put answer Into \sqrt()

Step-by-step explanation:

Step-by-step explanation:

Ok, so the pythagorean theorem is  a^2 + b^2  = c^

where c is the hypotenuse and b and a are the the other 2 sides

9) 10^2 + b^2 = 15^2

100 + b = 225

-100       -100

b^2 = 125

sqrt of 125 = 5

b = 5

10) 2^2 + 5^2 = C^2

4 + 25 = c^2

sqrt of 29 = c

c = \(\sqrt{29\\}\)

11)  42^2 + a^2 = 48^2

1764 + a^2 =2304

-1764            -1764

a^2 = 540

a = \(6\sqrt{15}\)

Answer:

Step-by-step explanation:

3(x + 4) - 5 = 2x + 4

solve for x

x = -3

The Clintοn Middle Schοοl has the greater percentage οf music students whο play the viοlin.

In mathematics, a percentage is a  ratiο that can be expressed as a fractiοn οf 100. Sοmetimes it can be a number alsο. Tο calculate percent οf a number, divide the number by the whοle and multiply by 100. In simple manner the percentage means, a part per hundred. It can be represented by the symbοl “%”.

The prοblem can be sοlved by percentage methοd.

At Bentοn Middle Schοοl, 97% οf the music students play the viοlin. At Clintοn Middle Schοοl, 45 οut οf 46 music students dο.

Out οf  46 students  45 students play viοlin.

Out οf   1 students  45/46 students play viοlin

Sο οut οf 100 students (100 × 45)/46 = 97.8

Sο by percentage Bentοn Middle Schοοl has 97% οf the music students whο play the viοlin.

And Clintοn Middle Schοοl 97.8% οf the music students whο play the viοlin.

Hence, The Clintοn Middle Schοοl has the greater percentage οf music students whο play the viοlin.

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Maya achievements in mathematics were closely related to astronomy.

How were Maya achievements closely related to astronomy?

The Maya civilization made advancements in both mathematics and astronomy and these two fields were intricately interconnected in their culture. The Maya developed a highly sophisticated numerical system  which allowed them to perform complex calculations and create precise astronomical predictions.

They meticulously observed celestial bodies and recorded their movements, developing calendars and astronomical tables that aided in agricultural planning, religious rituals, and governance. By studying the stars, planets and celestial events, the Maya not only expanded their understanding of the universe but also used mathematical principles to navigate time and space.

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Yes, we can use a normal model for the sampling distribution of differences in proportions in the study conducted at West Virginia University Hospital on smoking behaviors among cancer survivors.

To use a normal model for the sampling distribution of differences in proportions, we need to meet the following conditions:
1. Both samples are independent.
2. The sample sizes are large enough (n₁ and n₂ are both greater than or equal to 30).

In this case:
- There are 95 female respondents (n₁ = 95) with a current smoker rate of 11.6% (p₁ = 0.116).
- There are 67 male respondents (n₂ = 67) with a current smoker rate of 10.4% (p₂ = 0.104).

Since both sample sizes are greater than 30, we can use a normal model for the sampling distribution of differences in proportions.

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Answer:

10 units is the solution

The value of the union of sets A and B is, P(A ∪ B) is 0.64.

The union of two sets means the total elements in both the sets combined.

Given: sets P(A) = 0.38, P(B) = 0.83, and  intersection P(A ∩ B) = 0.57

We need to find the union of P(A ∪ B).

P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

Let us substitute the given values in the formula.

P(A ∪ B) = P(A) + P(B) - P(A ∩ B)

=0.38+0.83-0.57

=1.21-0.57

=0.64

Therefore, the value of union of sets P(A ∪ B) is 0.64.

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Answer:

2

\\Step-by-step explanation:

Exponential form is a way of representing repeated multiplications of the same number by writing the number as a base with the number of repeats written as a small number to its upper right.

In the exponential form, the exponent indicates the number of times the base is used as a factor.

For example, in the case of 16 it can be written as 2 × 2 × 2 × 2  = \(2^{4}\), where 2 is the “base” and 4 is the “exponent.

A product in which the factors are identical is called a power of that factor.  The number that is repeated is called the base, and the number of times it repeats is called the exponent, power or degree. And the power that is written on the right upper side are called exponents. when multiplying the numbers having same base and different exponents then the base is kept same and the exponents are added.

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msin²x+cos²x=m-1

since the interval are 0 and π/4

Therefore

msin²(0)+cos²(0)=m-1

m(0)+1=m-1

1=m-1

m=2

use π/4 now

msin²(π/4)+cos²(π/4)=m-1

m(1/2)+(1/2)=m-1

m+1=2(m-1)

m+1=2m-2

-m=-3

m=3

Therefore

m=2 or 3

Answer:

Step-by-step explanation:

Answer:

  B.  False

Step-by-step explanation:

You want to know if it is true that when each of seven persons in a group shakes hands with each of the other six persons, a total of forty-two handshakes occurs.

The count of 42 handshakes includes every one of 7 shaking hands with each of the remaining 6, without regard to whether they met before.

The count will include A shaking hands with B, and B shaking hands with A. That handshake will be counted twice, so the number 42 overstates the actual number of handshakes by a factor of 2.

It is false that there will be 42 handshakes. (There will be only 21.)

Step-by-step explanation:

\( {3}^{q - 7} = {27}^{q - 7} \)

\( {3}^{q - 7} = {3}^{3(q - 7)} \)

\(q - 7 = 3(q - 7)\)

\(q - 7 = 3q - 21\)

\(q - 3q = - 21 + 7\)

\( - 2q = - 14\)

\(q = \frac{ - 14}{ - 2} \)

\(q = 7\)

Answer:

16

Step-by-step explanation:

3(q - 7) = 27

3q - 21 = 27

3q = 27 + 21

3q = 48

q = 48/3

q = 16

Answer:

C

Step-by-step explanation:

Mario first rode at one constant speed and then at a faster constant speed.

Answer:

Step-by-step explanation:

(C).  A( - 4, - 1 ), B( 3, 0 ), C( - 7, 2 )

The area of the new garden is found to be (x-3)(y+2) square units where x and y are the original dimensions.

When calculating a rectangle's area, we multiply the length by the width of the rectangle.

The area of the floors and walls must be measured before applying carpet or tiles on the floor, painting the walls, or installing cabinets in a space.

Given: A rectangular garden has x and y dimensions. The garden's width is increased by 2 feet while its length is decreased by 3 feet.

New length = x-3

New width = y+2

Area of new garden is given as:

=(length)(width)

= (x-3)(y+2)

Therefore, the area of the new garden is found to be (x-3)(y+2) square units where x and y are the original dimensions.

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Answer:

positive

Step-by-step explanation:

it will be a positive because the 2 numbers don't share the same positivity : meaning -2 is a negative number and 3 is a positive you add those it will be a positive

ps: the answer is 1

Which sampling method divides the population up into​ sections, randomly selects some of those​ sections, then chooses all the members from the selected sections to​ study?

What is Cluster Sampling?

Cluster sampling is a probability sampling technique where researchers divide the population into multiple groups (clusters) for research. Researchers then select random groups with a simple random or systematic random sampling technique for data collection and data analysis.

So, The above mentioned type of sampling is called cluster sampling.

Cluster sampling is a sampling technique in which the entire population of interest is divide into clusters or groups, then the investigator randomly selects some of these clusters and all the members of these randomly selected clusters are investigated.

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Answer:

Volume drank by Mennu = 250 ml

Step-by-step explanation:

Given:

Volume of bottle = 2 liter = 2000 ml

Mennu drank = 1/8 of bottle

Find:

Volume drank by Mennu

Computation:

Volume drank by Mennu = Volume of bottle x Mennu drank

Volume drank by Mennu = 2,000 x 1/8

Volume drank by Mennu = 250 ml

The exact value of each expression is

(a) cos 2θ = 0

(b) cos (-θ) = (-1/√2)

(c) cos²θ = 1/2

What are the trigonometric functions?

Trigonometric functions, often known as circular functions, are simple functions of a triangle's angle. These trig functions define the relationship between the angles and sides of a triangle.

Here, we have

Given:

f(θ) = 3π/4

We have to find the exact value of each expression.

(a)  cos 2θ

we have to find the exact value, so we put the θ = 3π/4 and we get

= cos 2θ

= cos 2(3π/4)

After solving this term we get

= cos (3π/2)

From the trigonometric table, we find the value of cos (3π/2) and we get

= cos (3π/2)

= 0

(b)  cos (-θ)

we have to find the exact value, so we put the θ = 3π/4 and we get

= cos (-θ)

= cos (-3π/4)

After solving this term we get

= cos (3π/4)

From the trigonometric table, we find the value of cos (3π/2) and we get

= cos (3π/4)

= -1/√2

(c) cos²θ

we have to find the exact value, so we put the θ = 3π/4 and we get

= cos²θ

= cos²(3π/4)

After solving this term we get

=  cos² (3π/4)

From the trigonometric table, we find the value of cos (3π/2) and we get

= (-1/√2)²

= 1/2

Hence, the exact value of each expression is

(a) cos 2θ = 0

(b) cos (-θ) = (-1/√2)

(c) cos²θ = 1/2

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Answer:

x<7 i believe

Step-by-step explanation:

There are nC2 different votes possible, where n is the number of bands on the list and nC2 represents the number of ways to choose 2 bands out of n.

To calculate nC2, we can use the formula for combinations, which is given by n! / (2! * (n-2)!), where ! represents factorial.

Let's say there are m bands on the list. The number of ways to choose 2 bands out of m can be calculated as m! / (2! * (m-2)!). Simplifying this expression further, we get m * (m-1) / 2.

Therefore, the number of different votes possible is m * (m-1) / 2.

In the given scenario, we don't have the specific number of bands on the list, so we cannot provide an exact number of different votes. However, you can calculate it by substituting the appropriate value of m into the formula m * (m-1) / 2.

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