What is division example?

To determine customer opinion of their musical variety, sony randomly selects 120 concerts during a certain week and surveys all concertgoers. The type of sampling is used is "Cluster."

A survey is a technique of gathering information from a sample of people by asking relevant questions with the goal of understanding populations as a whole.

Some key features regarding the survey are-

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The composition of functions f(a+h) - f(a) / h simplifies to 8a + 4h.

To find the composition of functions f(a+h) - f(a) / h, we first need to substitute the given function f(x) = 4x² - 1 into the expression.

We start by evaluating f(a+h):
f(a+h) = 4(a+h)² - 1
       = 4(a² + 2ah + h²) - 1
       = 4a² + 8ah + 4h² - 1

Next, we evaluate f(a):
f(a) = 4a² - 1

Now we can substitute these values into the expression f(a+h) - f(a) / h:
(f(a+h) - f(a)) / h = (4a² + 8ah + 4h² - 1 - (4a² - 1)) / h
                    = (4a² + 8ah + 4h² - 4a² + 1 - 1) / h
                    = (8ah + 4h²) / h
                    = 8a + 4h

In summary, the composition of functions f(a+h) - f(a) / h simplifies to 8a + 4h.

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Answer: I believe the answer is M= -4

Step-by-step explanation:

Answer:

x ≈ 0.67

Step-by-step explanation:

\(15(3)^2x = 90\\\\15(9)x = 90\\\\135x = 90\\\\x = 90/135\\\\ x = 2/3\\\\x = 0.666...\\\\x = 0.67 \ (rounded \ to \ nearest \ hundredth )\)

In order for Garret to find a sample that accurately represents the population, he should consider the entire population of people in town who have opinions about the best beef brisket.

This population would consist of all residents or visitors who have tried different restaurants and have an opinion about the best beef brisket.

A sample that is not representative of the population could be one that is biased or skewed in some way. For example, if Garret only asks his friends or people from a single neighborhood, the sample may not be representative of the entire population's opinions. Similarly, if he asks people at a food festival where one specific restaurant is heavily promoted, the sample may be biased towards that particular restaurant. In order to have a representative sample, it is important to ensure that individuals from diverse backgrounds and locations are included in the survey.

In conclusion, the population from which Garret should find a sample is the entire population of people in town who have opinions about the best beef brisket. A sample that is not representative of the population could be biased or skewed in some way, such as asking only a specific group of people or surveying at an event that promotes a specific restaurant.

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Answer:

90

Step-by-step explanation:

2*3*3*5=

90

Answer:

90

Step-by-step explanation:

2 × 3 × 3 × 5

2 × 3 × 15

2 × 45

90

Answer:

Step-by-step explanation:

here you go mate

step 1

(x^3)4  equation

step 2

(x^3)4  simplify

answer

4x^3

can i get brainliest if you dont mind

Particle moves with its position given by x= cos(2t) and y= sin (t), where positions are given in feet from the origin and time t is in seconds. The speed of the particle at any time t is v = \(\sqrt\)(4sin²(2t) + cos²(t)).

For the speed of the particle, we can calculate the magnitude of its velocity vector.

The velocity vector can be obtained by differentiating the position vector with respect to time.

We have the position of the particle as x = cos(2t) and y = sin(t), we can differentiate these equations to find the corresponding velocity components:

vx = dx/dt = -2sin(2t)

vy = dy/dt = cos(t)

The magnitude of the velocity vector (v) is given by the square root of the sum of the squares of its components:

\(\sqrt\)(vx² + vy²) = \(\sqrt\)((-2sin(2t))² + (cos(t))²)

Simplifying this expression:

v = \(\sqrt\)(4sin²(2t) + cos²(t))

This is the speed of the particle at any given time t.

Note that the speed is not constant but varies with time due to the periodic nature of the sine and cosine functions.

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The volume is 1088.64 cm^2 of a rectangular prism with 7.2cm,8.4cm,18cm.

What is volume?

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

a rectangular prism with 7.2cm,8.4cm,18cm

we know,

the volume is

V= l.b.w

here,

l= 7.2 cm

b= 8.4 cm

w= 18cm

i.e. V= 1088.64 cm^2

Hence, The volume is 1088.64 cm^2 of a rectangular prism with 7.2cm,8.4cm,18cm.

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The line tangent to f at x = a to approximate values of f near x = a, at x = a, the graph of f must be, B increasing

If the line tangent to f at x = a always underestimates the correct values, it implies that the graph of f is located above the tangent line. This suggests that the function f is greater than the tangent line near x = a.

Since the tangent line is below the graph of f, it indicates that f is increasing at x = a. This is because if f were decreasing, the tangent line would be above the graph, resulting in overestimations rather than underestimations.

Therefore, at x = a, the graph of f must be increasing. The correct answer is B. increasing.

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The value of $m$ is $43$.

The equation $6^{-1}\equiv 6^2\pmod m$ implies that $6^{-1}$ is a valid inverse of $6$ modulo $m$. This means that multiplying $6^{-1}$ by $6$ must result in the remainder $1$ when divided by $m$.

To find the value of $m$, we can then set up the equation:

                                $0\equiv 215\pmod m$

and find all possible values of $m$ that make this equation true.

Multiplying $6^{-1}\equiv 6^2\pmod m$ by $6$, we get $1\equiv 6^3\pmod m$, so $0\equiv 215\pmod m$. So, $m$ must be a divisor of $215$. The only 2-digit divisor of $215$ is $43$.

Therefore, $m$ is a two-digit number, the only possible value of $m$ is $43$.

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Answer:

The equation of a line in slope-intercept form is given by y = mx + b, where m is the slope of the line and b is the y-intercept (the point where the line crosses the y-axis).

In this case, we are given the point (5, -2) and the slope -2/5, so we can plug these values into the equation to find the y-intercept b:

Copy code

-2 = (-2/5) * 5 + b

-2 = -2 + b

b = 0

Therefore, the y-intercept of the line is 0, and the equation of the line is y = (-2/5)x + 0, or y = -2/5x.

Answer:

Case study

Step-by-step explanation:

Case study: Case study method is used to find more information through carefully analyzing existing cases. It is very often used for business research or to gather empirical evidence for investigation purpose.

Answer:

D is correct.

Step-by-step explanation:

Hoped this helped!

Hoped this helped!Hoped this helped!Hoped this helped!Hoped this helped!Hoped this helped!Hoped this helped!Hoped this helped!

Answer:

3.2

Step-by-step explanation:

Distance forumla

\(y = \sqrt{(x1 - x2)^2 + (y1-y2)^2}\)

\(y = \sqrt{(2 - (-1))^2 +(0-1)^2} \\ y = \sqrt{10} \\y = 3.2\)

tan(A/2) = sin(A) / (1 + cos(A))

To prove the identity tan(A/2) = sin(A) / (1 + cos(A)), we start with the tangent half-angle identity: tan(A/2) = sin(A) / (1 + cos(A)). This identity can be derived using the double-angle identity for tangent: tan(2θ) = (2tan(θ)) / (1 - tan²(θ)).

Using the double-angle identity, we can rewrite tan(A/2) as tan(A/2) = (2tan(A/4)) / (1 - tan²(A/4)). We then substitute A/2 for θ and simplify further.

Next, we use the Pythagorean identity sin²(θ) + cos²(θ) = 1 to replace tan²(A/4) with sin²(A/4) / cos²(A/4). This allows us to rewrite tan(A/2) as (2sin(A/4) / cos(A/4)) / (1 - sin²(A/4) / cos²(A/4)).

Further simplifying this expression, we get (2sin(A/4) / cos(A/4)) / (cos²(A/4) - sin²(A/4)).

Now, we apply the Pythagorean identity again, which states cos²(θ) = 1 - sin²(θ). Substituting this identity, we have (2sin(A/4) / cos(A/4)) / (1 - sin²(A/4) - sin²(A/4)).

Simplifying further, we obtain (2sin(A/4) / cos(A/4)) / (1 - 2sin²(A/4)).

Finally, we can use the double-angle identity for sine, sin(2θ) = 2sin(θ)cos(θ), to rewrite the expression as sin(A) / (1 + cos(A)). Thus, we have proved that tan(A/2) is equal to sin(A) / (1 + cos(A)) using the tangent half-angle identity and a Pythagorean identity.

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Answer:

Step-by-step explanation:

In a circle, if two angles are inscribed in the same arc, they are congruent. Therefore, since KL and ML are similar angles, they have the same measure.   Out of the given options, the only measure that satisfies this condition is 74. Therefore, the measure of KL and ML is 74.

Answer:

8n+7

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

D: there is no square root

for both C and B there is no decimal.

A should end up being y=-8x+5 which is in y=mx+b form

Answer:

if 1 equal to x

and 2 equal to x-4

that mean

(x)+(x-4)=180

2x-4=180

2x=184

x=92

lets start to find the angles that marked with numbers

1=92

2=88

3=88

4=92

5=92

6=88

7=88

8=92

that's it

Have a great day

The function f(x)=√x with f:R→R is injective and surjective but not bijective.

Injective (or one-to-one): f(x) is injective, which means that if f(x1) = f(x2), then x1 = x2. In other words, if the square root of x1 is equal to the square root of x2, then x1 and x2 are equal.

Surjective (or onto): f(x) is surjective, which means that for every y in the codomain (R), there exists an x in the domain (R) such that f(x) = y. In other words, the square root of any real number can always be expressed as a real number.

Bijective: f(x) is not bijective. The square root function is not bijective because it is not defined for negative values of x.

Function: A function f is a function if for every x in the domain of f, there is exactly one y in the codomain of f such that f(x) = y. In other words, each x in the domain is mapped to exactly one y in the codomain.

In the case of f(x) = √x, it is a function. For every x in the domain of f, which is [0,∞), there is exactly one y in the codomain of f, which is [0,∞), such that f(x) = y.

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By combinatorics there are 35 number of possibilities.

What is combinatorics?

Combinatorics is a stream of mathematics which deals with the study of finite discrete structures. It concerns with the study of permutations and combinations, enumerations of the sets of elements. It often refers to the larger subset of discrete mathematics.

Kathryn has homework assignments in seven subjects. She only has time to do four of them.

We will solve the problem by Combinatorics method.

So in seven subjects she can do only 4.

By Combinatorics the probability will be

                      ₇C₄

In Combinatorics  the formula for ₙCₐ  will be n!/{a!(n-a)!}

Here n= 7 and a= 4

So  ₇C₄ = 7!/{4!×(7-4)!}

            = 7!/(4!×3!)

            = 35

Hence, there are 35 number of possibilities.

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Answer:

\(\boxed {\boxed {\sf m= \frac{1}{2}}}\)

Step-by-step explanation:

We are asked to find the slope of a line that passes through 2 points. The slope tells us the steepness and direction of a line. It is calculated using the following formula:

\(m= \frac {y_2-y_1}{x_2-x_1}\)

In this formula, (x₁ , y₁) and (x₂, y₂) are the points the line passes through. The points are (4,4) and (10,7). If we match the value and the corresponding variable we see that:

Substitute the values into the formula.

\(m= \frac{7-4}{10-4}\)

Solve the numerator.

\(m= \frac{3}{10-4}\)

Solve the denominator.

\(m= \frac{3}{6}\)

This fraction can be reduced. Both the numerator and denominator can be divided by 3.

\(m= \frac{3/3}{6/3}\)

\(m= \frac{1}{2}\)

The slope of the line that passes through (4,4) and (10,7) is 1/2.

Answer:

n = 113

Step-by-step explanation:

(6x5)x4-7=n​

(30)*4-7=n

120-7 = n

113 = n

Answer:

Step-by-step explanation:

Given the function f(x)=(x+4)², the x intercept occurs at f(x)  = 0, substituting f(x) = 0 into the given equation to get the value of x we have;

\(0 = (x+4)^{2} \\\)

Taking the square root of both sides

\(\sqrt{(x+4})^{2} = \sqrt{0}\\ x+4 = 0\\\)

Subtracting 4 from both sides of the equation

\(x+4-4 = 0-4\\x = -4\)

Therefore the x intercept of the equation is -4

Answer:

B

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Consider the points (0, 0 ) and (2, 100 )

slope = \(\frac{rise}{run}\) = \(\frac{100}{2}\) = 50

Then

y = 50x

Answer:

Use a simple random sampling technique.

Step-by-step explanation:

Sampling is a procedure applied in statistical analysis where a fixed number of data (observations or individuals) are selected from a superior population. The approach used to select a sample from a population is determined on the basis of the type of analysis being executed.

To test for defective bulbs the store manager has to select a sample. She can select a sample of size n from the 1000 bulbs using the simple random sampling technique.

A simple random sample is a part of a statistical population in which every individual of the population has an equal probability of being selected.

Assigning each individual of the population a unique number and using a computer or random number generator for selection is a procedure to select a simple random sample.

The recursive formula for this sequence, we need to identify the pattern between each term. Notice that each term is half of the previous term. The answer is a_n = a_(n-1) * (1/2).

a(n) = a(n-1) / 2
where a(1) = 768.
This formula states that each term in the sequence is equal to half of the previous term.
Note that this is a long answer because it includes an explanation of the pattern in the sequence and how to use it to find the recursive formula.
The given sequence is 768, 384, 192. This sequence is a geometric sequence where each term is obtained by multiplying the previous term by a common ratio. To write the recursive formula, let's find the common ratio:
Common Ratio (r) = (Current Term) / (Previous Term)
r = 384 / 768 = 1/2
r = 192 / 384 = 1/2

As the common ratio is consistent, we can write the recursive formula:
a_n = a_(n-1) * (1/2)
The "a_n" represents the nth term in the sequence, and "a_(n-1)" represents the previous term (n-1).

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Each friend will receive "x/5" antique letters, where "x" represents the total number of antique letters in the box.

Sasha wants to give an equal number of letters to each of her five friends. The box of antique letters contains the letters that she wants to distribute among her friends. The question is to determine how many antique letters each friend will receive.

The total number of antique letters in the box is unknown. Let's assume that there are "x" antique letters in the box. If Sasha wants to distribute "x" letters among five friends equally, she can find out how many letters each friend will receive by dividing the total number of antique letters by the number of friends. Hence, each friend will receive x/5 letters.

To summarize, each friend will receive "x/5" antique letters.

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Answer:

ok il try to answer it

Step-by-step explanation: