please help, urgent!!!!!

The coefficient of x^2 in the expansion of (x + 2)^3 is 6

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

(x + 2)^3

Next, we expand the expression

So, we have the following representation

(x + 2)^3 = x^3 + 3x^2 * 2 + 3x * 2^2 + 2^3

Evaluate the expression

(x + 2)^3 = x^3 + 6x^2 + 12x + 8

The coefficient of x^2 in the expression  x^3 + 6x^2 + 12x + 8 is 6

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Answer:

Grandma Anni is correct, so no. One of the criteria for comparing two figures is that their corresponding lines must be congruent. Similar figures can vary in size while maintaining the same shape. They are therefore proportionate and have identical matching angles. The shapes of the figures will match if the associated lines are congruent.

The new coordinates of B'  is (-3, 1)

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

B = (3, -1)

The figure is rotated 180° counterclockwise.

This is represented as

(x, y) = (−x,−y)

Substitute the known values in the above equation, so, we have the following representation

B' = (-3, 1)

Hence, the image poont is (-3, 1)

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Answer:

-150 ≤ t ≤ 18

Step-by-step explanation:

This statement describes the process of innovation portfolio management.

A statement in mathematics is a declarative utterance that is either true or untrue but not both. A proposal is another name for a statement. The main point is that there should be no uncertainty. A sentence cannot be both true and untrue in order to be a statement. A mathematical statement is made up of two components. The hypothesis or assumptions come first, followed by the conclusion. When a mathematical sentence makes a mathematically accurate statement, it is true.

Here,

This statement describes the process of innovation portfolio management. Innovation portfolio management involves evaluating and selecting innovation projects in line with an organization's goals and resources, and ensuring that these projects are aligned with the overall strategy of the firm. The aim of innovation portfolio management is to optimize the allocation of resources and maximize the return on investment in innovation.

By selecting and prioritizing innovation projects, companies can ensure that they are working on initiatives that have the greatest potential to drive growth and success, while also balancing risk and resource constraints.

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The amount of chemical solution needed to fill the container to the top is 165.56 L.

If the container is already 90% filled with a chemical solution, then the remaining empty space is 10% of the total volume. We can calculate the total volume of the container using the formula:

                 total volume = volume of solution/fraction of container filled

Plugging in the given values, we get:

                 total volume = 1490 / 0.9

                 total volume = 1655.56 L

So, the total volume of the container is 1655.56 L. To fill the container to the top, we need to add the amount of solution that fills the remaining 10% of the container. This is equivalent to:

                volume of remaining space = 0.1 * 1655.56

                volume of remaining space = 165.56 L

Therefore, we need to add 165.56 L of a chemical solution to fill the container to the top.

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The mean and standard deviation for each binomial random value: of n = 26, pi = .90

Mean = 23.4

Standard Deviation = 1.53

In one of the branches of mathematics called statistics, We use one term known as mean; it generally tells us what is the central tendency of the data set.

Generally, we use three terms for measurement of central tendency like, mean, median, mode.

In simple words, mean is an average of all the dataset.

formula;

Mean = Sum of all the dataset/Total number of dataset

Given that,

A binomial distribution with parameters,

n = 26 and p = 0.9,

the mean (expected value) of the distribution is given by:

E(X) = n x p

       = 26 x 0.9

       = 23.4

The standard deviation of the distribution is given by:

σ = √(n x p x (1 - p))

  = √(26 x 0.9 x (1 - 0.9))

  = √(26 x 0.9 x 0.1)

  = √(2.34)

  = 1.53

So the mean of the distribution is 23.4 and the standard deviation is 1.53.

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Answer:

1.2

Step-by-step explanation:

To find the diameter, you must multiply the radius by two

The 98% confidence interval for the population mean μ is 20 < μ < 22

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

n = 130

μ = 21

σ = 3

To construct a 98% confidence interval for the population mean μ, we can use the following formula:

μ ± (z * σ / √n)

Where

z = 2.33 i.e. the Z-score for a 98% confidence level

So, we have

21 ± (2.33 * 3 / √130)

Evaluate

21 ± 0.61

This gives

20.39 < μ < 21.61

Approximate

20 < μ < 22

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The vertical asymptote of the function are 4. -4 and the horizontal asymptote is -1.

An asymptote is a line that a curve approaches but never touches. i.e., an asymptote is a line to which the graph of a function converges. When graphing functions, asymptotes are typically not required. However, when we graph them using dotted lines (imaginary lines), we have to be careful that the curve doesn't hit the asymptote. The asymptotes are therefore essentially made-up lines.

Given that, the function:

f(x) = (x² - 16) / (-x² - 16)

The horizontal asymptote of the function when both the degrees of numerator and denominator are equal is:

HA = Leading coefficient of numerator / leading coefficient of denominator

HA = 1 / -1

HA = -1

To calculate the vertical asymptote simplify the function:

f(x) = (x² - 16) / (-x² - 16)

f(x) = (x - 4) (x + 4) / (-x - 4) (-x + 4)

Equate the denominator to 0:

-x - 4 = 0, x= -4

- x + 4 = 0, x = 4

Hence, the vertical asymptotes of the function are 4. -4 and the horizontal asymptote is -1.

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5 kilograms 45 grams is equal to 5045 grams.

Weight is a measure of the force of gravity acting on an object, and weight units are units of measurement used to express the weight of an object. There are several different weight units used in different parts of the world, but some of the most common weight units include grams, kilograms, pounds, and ounces.

Grams are a metric unit of weight commonly used in the scientific and medical communities, as well as for small items like jewelry and food ingredients.

Kilograms are also a metric unit of weight, equivalent to 1000 grams. Kilograms are often used to express the weight of larger objects, such as people, animals, and heavy packages.

Pounds and ounces are units of weight used primarily in the United States and the United Kingdom. Pounds are equivalent to 16 ounces, and are used to express the weight of larger objects. Ounces are a smaller unit of weight and are often used for items like food and small packages.

To convert kilograms to grams, we multiply the number of kilograms by 1000. Therefore, 5 kilograms is equal to 5 x 1000 = 5000 grams.

Adding the 45 grams, we get 5000 + 45 = 5045 grams.

So, 5 kilograms 45 grams is equal to 5045 grams.

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The area under the curve between the mean and a z-score

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

1. z = (x[tex]- \mu) /\sigma[/tex]

z= (52350 - 46292)/ 4320

z = 1.40

P(X> 52350 )= P( z> 1.40) = P(z< -1.40)

P(Z>1.40) = 0.0808, which is 8.08%

2. Now, z = (x[tex]- \mu) /\sigma[/tex]

z= (45000- 46292)/ 4320

z = -0.30

and, z = (x[tex]- \mu) /\sigma[/tex]

z= (52350 - 46292)/ 4320

z = 1.40

Then, you must find the area between Z = -0.30 and Z = 1.40

So, P(Z<1.40) - P(Z < - 0.30)

= P(Z > - 1.40) - P(Z < - 0.30)

= 1 - P(Z< -1.40) - P( Z < -0.30)

The area under the curve to the left= 1 - 0.0808 - 0.3821 = 0.5371

3.  z = (x[tex]- \mu) /\sigma[/tex]

z= (38500- 46292)/ 4320

z = -1.8

Thus, the area under the curve to the right of Z = - 1.80 and to the left of Z = - 0.3

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The explicit formula for the geometric sequence is,

⇒ tn = 7 (2ⁿ - 1)

An sequence has the ratio of every two successive terms is a constant, is called a Geometric sequence.

Given that;

The geometric sequence is,

⇒ 7,14,28,56,112,…

Here, First term = 7

And, Common ratio = 14 / 7 = 2

We know that;

The explicit formula for the geometric sequence is,

⇒ tn = t₁ (rⁿ - 1) / (r - 1)

Substitute all the values we get;

The explicit formula for the geometric sequence is,

⇒ tn = 7 (2ⁿ - 1) / (2 - 1)

⇒ tn = 7 (2ⁿ - 1)

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The plastic coating required to cover the surface of the coating is 527.52 cm²

The volume of a Right Circular Cylinder. In general, the volume of a right cylinder is the area of the base times the height of the cylinder. The area of the circular base is given by the formula A = πr². Substitute to get V = πr²h.

Given here: The radius is 3 cm and a height 25 cm

We know the total surface area of the cylinder is

TSA=2πrh + 2π r².

      =2πr(r+h)

      =2×3.14×3(3+25)

      =527.52 cm²

The plastic coating required to cover the surface of the coating is 527.52 cm²

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Answer:

To find the surface area of the cylinder that makes up the chain link, we need to add the area of the top and bottom circles (which are congruent) to the lateral surface area of the cylinder.

Therefore, we need approximately 527.52 square centimeters of plastic coating to coat the surface of the chain link. The closest answer choice is 471, but that is not correct. The closest answer to the actual surface area is 345.4 cm².

Step-by-step explanation:

The formula for the lateral surface area of a cylinder is:

Lateral surface area = 2πrh

where r is the radius of the base of the cylinder, h is the height of the cylinder, and π is 3.14.

The formula for the area of a circle is:

Area of circle = πr²

Substituting the given values, we get:

Area of top and bottom circles = 2 x π x 3²

Area of top and bottom circles = 56.52 cm² (rounded to two decimal places)

Lateral surface area = 2 x 3.14 x 3 x 25

Lateral surface area = 471 cm²

Total surface area = Area of top and bottom circles + Lateral surface area

Total surface area = 56.52 + 471

Total surface area = 527.52 cm²

The possible values of n are 5 and 6.

The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.

Given that, divide 33 from a natural number (n) you get the remainder 5.

Now, 33/n =5

n=33/5

n=5.5

So, the possible values are 5 and 6

Therefore, the possible values of n are 5 and 6.

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The quotient of a number and -5, decreased by 9, is 2.”So, the number is -55.

The dividend is the quantity being divided (15 in this case), and the divisor is the quantity being divided (3 in this case). Quotient is what remains after division. A quotient is the result of dividing one number by another. It is the number of times one number is contained within the other, or the answer to a division problem.

It is known as the quotient to divide two numbers. Six times two is the ratio, which equals three. The Latin word for ratio, "how many times," is quotient. This is very logical: by dividing two numbers, you are calculating "how many times" the second number enters the first.

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Step-by-step explanation:

play the video that is in the activity

Answer:1950 US tons

Step-by-step explanation:

The procedure to determine the function's behavior is explained in this problem.

The problem is incomplete, hence the general procedure to obtain the function's behavior was presented.

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Answer:

Below

Step-by-step explanation:

If it decays  7.1 % ( which is .071 in decimal ) then .929 remains at the end of each year and the equation becomes

y =  750 (.929^t)    where t is years since 1999   and y is mg

Answer:

Step-by-step explanation:

The answer to the question is 15

A professor asserts that more than 77% of all scientists believe in evolution, and the p-value for the two-tailed test is 2 mincdf(x), 1 - cdf(x).

A type of statistic hypothesis known as a hypothesis claims that a certain group of data has no statistical power. The viability of hypotheses is investigated using sample data. Sometimes refer to as "zero," and represented as H0. The premise that researchers make is that there is a link between the variables. The null hypothesis, on the contrary hand, asserts that such a link does not exist. Despite its inability to seem relevant, the null hypothesis is a critical component of research.

given

You must understand the distribution of your test statistic on the supposition that the null hypothesis is correct in order to calculate the p-value.

Left-tailed test: cdf as the p-value (x).

Test with a right-tail: p-value = 1 - cdf (x).

p-value for the two-tailed test is 2 mincdf(x), 1 - cdf(x).

A professor asserts that more than 77% of all scientists believe in evolution, and the p-value for the two-tailed test is 2 mincdf(x), 1 - cdf(x).

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The ratio of the length of BC to the length of DE is 1/2.

Arc length is defined as the distance between any two points on a section of a circle or curve.

The figure in the question is given below.

The formula to find the length of an arc is given as,

Arc length, l = rθ, where r is the radius and θ is the central angle in radians.

Given that,

Central angle for arc BC, θ = 1.18 radians.

Radius for arc BC, r = AC = AB

Arc length of BC = rθ

                            = 1.18 (AB)

Central angle for arc DE, θ = 1.18 + 2.36 = 3.54 radians

Radius for arc DE, r = AE = AD = 2/3 AB

Arc length of DE = rθ

                            = 3.54 × (2/3) AB

                            = 2.36 (AB)

Arc length of BC / Arc length of DE = 1.18 (AB) / 2.36 (AB) = 1/2

Hence the ratio of BC to DE is 1/2.

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Answer:

DE: 3/4

Step-by-step explanation:

PlatoGang

Answer:The answer is letter E

Step-by-step explanation:

If you divide 4/15 you get 0.2666.

If you solve all of the choices letter E is equivalent to the expression.

Answer: sample mean is 166,4285714285714

and sample median is 170

Step-by-step explanation: sorry if its wrong

Answer:

Step-by-step explanation:

a. To compute the sample, mean, we add up all the weights and divide by the number of responses (in this case, 7):

(190 + 230 + 105 + 180 + 130 + 160 + 170) / 7 = 1265 / 7 ≈ 180.71

Therefore, the sample mean weight estimate is approximately 180.71 pounds.

b. To find the sample median, we need to put the responses in order from smallest to largest and then find the middle value. In this case, the ordered list of weights is:

105, 130, 160, 170, 180, 190, 230

The middle value is the average of the two values in the middle of the list, which in this case is:

(170 + 180) / 2 = 175

Therefore, the sample median weight estimate is 175 pounds.

Answer:

see below

Step-by-step explanation:

memorize this formula for cone volume:

V = 1/3 * π r²*h

so r = 18/2 =9

h = 3

solve V = 81π = 254

Answer:

254.47

Step-by-step explanation:

For the graph [tex]f(x)= a(x-h)^{2}+k[/tex] The graph goes upward if k > 0, but it shifts downward if k <  0.

A quadratic function is represented in its standard form as [tex]f(x)= a(x-h)^{2}+k[/tex], where (h, k) is the vertex. This form is also referred to as the vertex form of a quadratic function because the vertex occurs in the quadratic function's standard form.

To understand how the graph differs from the graph of y = x², the standard form is helpful. This fundamental function's graph is shown in the figure below.

A constant, k, can be added to or subtracted from the graph of f(x) = x² to represent a vertical (up, down) shift.

The graph goes upward if k > 0, but it shifts downward if k <  0.

Mathematicians use graphs to visually represent or chart facts or values in a logical way. Usually, a graph point will show the relationship between two or more objects.

A graph is a non-linear data structure made up of nodes, also known as vertices, and edges. The nodes, sometimes referred to as vertices, should be joined with glue. Vertices in this graph are 1, 2, 3, and 5, whereas edges are 1, 2, 1, 3, 2, 4, and (2.5). (3.5). (4.5). Graphical depictions of exponential development in statistical charts, such as bar charts, pie charts, and line graphs. a triangle-shaped logarithmic graph

Piecewise functions are exactly what their name implies: groups of several functions (subfunctions) on a single graph.

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The area of the trapezoid MNRS is 378 square feet.

An open, flat object with four straight sides and one set of parallel sides is referred to as a trapezoid or trapezium. A trapezium's non-parallel sides are referred to as the legs, while its parallel sides are referred to as the bases.

In the figure below, trapezoid MNRS is made up of trapezoid MNPT,

triangle TPQ, and parallelogram TQRS.

The area of triangle TPQ is 84 square feet.

The lengths of NP, PQ, and QR are in the ratio 2 : 1.5 : 1.

The heights of the parallel base are,

a = 18 feet and b = 16 + 12 + 8 = 36 feet.

Let h be the perpendicular height.

So,

1/2 x h x 12 = 84

h = 14 feet.

The area of the trapezoid MNRS,

= 1/2 x (36 + 18) x 14

= 378 square feet.

Hence, the area is 378 square feet.

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Michael has made 3.21 batches of granola.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Michael has a granola recipe that requires 14 pounds of oats to make one batch of granola.

If Michael uses 45 pounds of oats while making granola,

then number of batches he made,

= 45 /14

= 3.21

Hence, he made 3.21 batches.

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The probability that a randomly chosen bike in the parade was a recumbent bicycle will be 5/46.

Its fundamental concept is that someone will nearly surely occur. The proportion of positive events in comparison to the total of occurrences.

Then the chance is given as,

P = (Favorable event) / (Total event)

A city held a bike parade. 10 bikers rode recumbent bicycles, and 82 bikers rode other types of bicycles.

The total number of bikers is given as,

Total bikers = 82 + 10

Total bikers = 92

Then the probability is given as,

P = 10 / 92

P = 5 / 46

The probability that a randomly chosen bike in the parade was a recumbent bicycle will be 5/46.

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