Plz help now
We toss a die 4 times. among all possible outcomes how many have at least one occurrence of 1?

8400000cm

84 kilometer is 8400000 centimeter.

Here given 84 km ,

We know that 1 km = 1000 meter

               so 84 km  = 84 x 1000 meter

                                 = 84000 meter

 and 1 meter = 100 cm

 so here 84000 meter = 84000 x 100 cm

                                       = 8,400,000 Centimeters

∴ 84 km = 8400000cm

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To calculate ∑ (-1)^k pi^2k/2k, we can use the power series expansion for the cosine function:

cos(x) = ∑ (-1)^n x^(2n) / (2n)!

We can substitute pi^2 for x in this formula to get:

cos(pi^2) = ∑ (-1)^n (pi^2)^(2n) / (2n)!
= ∑ (-1)^n pi^(4n) / (2n)!

Now we can compare this to the original series we want to evaluate:

∑ (-1)^k pi^2k/2k = ∑ (-1)^n pi^(2n) / (2n)

We notice that the powers of pi in the two series match up, but the coefficients are different. However, we can use the identity cos(pi^2) = (-1)^n to rewrite the series we want to evaluate as:

∑ (-1)^n pi^(2n) / (2n) = ∑ (-1)^n pi^(4n) / (2n)! * (2n) / pi^2n

= pi^2 / 2 * ∑ (-1)^n pi^(4n) / (2n)!

Now we can substitute our expression for cos(pi^2) into this equation to get:

∑ (-1)^k pi^2k/2k = pi^2 / 2 * cos(pi^2)

= pi^2 / 2 * (-1)^n

Therefore, the value of the series is (-1)^n * pi^2 / 2.
To calculate the sum ∑ (-1)^k (pi^2k)/(2k), it is important to recognize that this is an alternating series with a general term given by a_k = (-1)^k (pi^2k)/(2k).

However, the question seems incomplete, as there is no specified range for the sum (i.e., the values of k). If you provide the range of k for which this sum is to be calculated, I would be glad to help you further.

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Answer:

the answer is c!

Step-by-step explanation:

The correct answer is B. The sample mean being greater than 30 is not a requirement for testing a claim about a population mean with σ known.

The requirements are that either the population is normally distributed or n > 30 or both, the value of the population standard deviation is known, and the sample is a simple random sample. The hypothesis test for a population mean with σ known involves calculating the z-score by subtracting the population mean from the sample mean and dividing it by the standard deviation of the sampling distribution.

If the calculated z-score falls within the rejection region, we reject the null hypothesis and conclude that the sample mean is significantly different from the population mean. It is important to ensure that all the requirements are met before conducting the hypothesis test to obtain accurate and reliable results.

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Answer:

Step-by-step explanation:

Change in demand refers to a shift in the entire demand curve, either to the right or to the left, resulting in a higher or lower demand for a good or service, respectively. It can be caused by a variety of factors, such as changes in consumer preferences, changes in the price of related goods, changes in income, changes in the population, or changes in consumer expectations.

Change in quantity demanded, on the other hand, refers to a movement along the demand curve, resulting from a change in the price of a good or service, without any change in the underlying demand for the good or service. For example, if the price of a good decreases, the quantity demanded of that good will increase, and vice versa. This relationship between price and quantity demanded is known as the law of demand.

In summary, change in demand represents a shift in the demand curve, while change in quantity demanded represents a movement along the demand curve.

Answer: 9.4

a² + b² = c²

5² + 8² = c²

25+64=c²

89 = c²

√89 = √c²

9.4 = c

Step-by-step explanation:

Answer: 9.4

a² + b² = c²

5² + 8² = c²

25+64=c²

89 = c²

√89 = √c²

9.4 = c

Answer:

here is your answer

Step-by-step explanation:

i.think this is a wrong question

Answer:

y = 4.8

Step-by-step explanation:

y = k/x

4 = k/6

k = 24

y = 24/5

y = 4.8

Alina has $22.4 if her mother gave her 1/6 more of what she had at first.

To find how much money would Alina has if her mother gave her 1/6 more of what she had at first:

Alina has 3/5 much money as Edna.

Edna has $32.

Alina's mother gave her more 1/6 or 3/5.

So, first, we will find 1/6 of 3/5.

Now, add 3/30 to 3/5.

Hence, Alina has 21/30 as much money as Edna.

Then,

Therefore, Alina has $22.4 if her mother gave her 1/6 more of what she had at first.

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Using the given percentage, we found that the total number of chocolate chip muffins sold is 80.

What is meant by percentage?

A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Frequently, it is indicated with the per cent sign, "%". If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the word per cent means. A % is a number without dimensions and without a standard measurement. The value of "whole" in this relationship between portion and whole is always set at 100.

Given,

 the number of chocolate  chip muffins sold = 36

The 36 muffins is the 45% of the total muffins sold.

Let the total number of muffins sold be x.

Then using the given percentage, we find the total muffins sold.

Percentage = (required number of muffins sold/ total number sold) *100

45% = 36/x * 100

0.45 = 36/x

x = 36/0.45 = 80

Therefore using the given percentage, we found that the total number of chocolate chip muffins sold is 80.

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Answer:

area: 14

Step-by-step explanation:

The required equation model by "A gym charges $25 to join plus $10 per month membership fee." is y = 25 + 10x, which is not a proportional relationship.

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
Let the number of months be x and the total amount for the gym after x months be y,
According to the question, A gym charges $25 to join plus $10 per month membership fee.
y = 25 + 10x

Thus, the equation model by "A gym charges $25 to join plus $10 per month membership fee." is y = 25 + 10x, which is not a proportional relationship.

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Answer:

{35} square units

Step-by-step explanation:

To find the area of a parallelogram, multiply the base by the height.

Formula :- A = B × H

B→ Base

H→ height

Area of the parallelogram = Base × Height

→ Area= 5×7

→ 35

\(-------------\)

hope it helps...

have a great day!!

Answer:

The answer is 35. Its essentially a rectangle but a piece was moved.

Step-by-step explanation:

7x5=35

Answer:

uh what do you want help with?? id be happy to help:D

Step-by-step explanation:

Note that the proof that ΔABC ≅ ΔEDC is given as follows:

According to the ASA rule, if any two angles and sides included between the angles of one triangle are comparable to the corresponding two angles and sides included between the angles of the second triangle, the two triangles are said to be congruent.

Thus, given the above statements, it is clear that ΔABC ≅ ΔEDC

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Full Question:

Angle BAC is congruent to Angle DEC: Given

C is the midpoint of AE: Given

Prove triangle ABC is congruent to triangle EDC

What are the statements and reasons for this proof?

Answer:

What?

Step-by-step explanation:

Answer: 6 sunny days

Step-by-step explanation:

There are 7! possible orders the guests can arrive in

The number of guests is given as:

n = 7

Assume that the guests do not arrive at the same time, their order of arrival is the factorial of the number of guests

i.e. n! = 7!

Hence, there are 7! possible orders the guests can arrive in

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Answer:

A. Yes; no vertical line passes through two graphed points

Step-by-step explanation:

To find out what happens when (2,1) is substituted into the equation x + 3y = 5, we simply need to replace x with 2 and y with 1, and then solve for the left-hand side of the equation.

Therefore, substituting (2,1) into the equation x + 3y = 5 we get:

2 + 3(1) = 5

Simplifying the left-hand side of the equation, we get:

2 + 3 = 5

Therefore, the left-hand side of the equation equals the right-hand side of the equation.

The statement "If f(n) = O(g(n)) and g(n) = Ω(h(n)), then f(n) = Θ(h(n))" is actually true.

This can be proven using the formal definitions of the O-notation, Ω-notation, and Θ-notation:

f(n) = O(g(n)) means that there exist positive constants c and n0 such that |f(n)| ≤ c|g(n)| for all n ≥ n0.

g(n) = Ω(h(n)) means that there exist positive constants c' and n0' such that |g(n)| ≥ c'|h(n)| for all n ≥ n0'.

f(n) = Θ(h(n)) means that there exist positive constants c1, c2, and n1 such that c1|h(n)| ≤ |f(n)| ≤ c2|h(n)| for all n ≥ n1.

If we assume that f(n) = O(g(n)) and g(n) = Ω(h(n)), we can use the definitions above to show that f(n) = Θ(h(n)).

Since g(n) = Ω(h(n)), we have |g(n)| ≥ c'|h(n)| for some positive constants c' and n0', and since f(n) = O(g(n)), we have |f(n)| ≤ c|g(n)| for some positive constants c and n0.

Combining these two inequalities, we get:

|f(n)| ≤ c|g(n)| ≤ c(c'/c)|h(n)|

Therefore, f(n) = Θ(h(n)) with constants c1 = 1 and c2 = c(c'/c), and n1 = max(n0, n0').

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if you're estimating the bias of a coin that came up heads 10 times and tails 20 times, 0.333 is the maximum probability estimate for the bias of this coin .

The maximum likelihood estimate for the bias of a coin is the ratio of the number of times it has come up heads to the total number of outcomes. In this case, the maximum likelihood estimate is 10/30, or 0.333. This is the most likely bias of the coin, rounded to the nearest 0.001. if you're estimating the bias of a coin that came up heads 10 times and tails 20 times, 0.333 is the maximum probability estimate for the bias of this coin .

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Answer:

-

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

Answer:

a.2

b.2

c.3x

a.3(x+2)

b.-(2-x)

c.3x-2

Answer:

a.3x+6=3 (x+2)

b.x-2=-(2-x)

15x-10/5=3x-2

Answer: x

≥

3

−

3

y

Step-by-step explanation:

Answer:

the combined percentage of key lime pies sold and pumpkin pies sold was less than 50%

The correct statement is:

E) The combined percentage of key lime pies sold and pumpkin pies sold was less than 50%

Data is referred to as a collection of information gathered by observations, measurements, research, or analysis. It may comprise facts, figures, numbers, names, or even general descriptions of things. Data can be organized in the form of graphs, charts, or tables for ease in our study. Data scientists help in analyzing the collected data through data mining.

For example, information gathered can be represented in the form of data as given below,

As, per the table

all the statements are not related to the table but except the statement

the combined percentage of key lime pies sold and pumpkin pies sold was less than 50%.

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\(\sf \: {x}^{2} - 5\)

\(\sf \: Use \: the \: algebraic \: identity \\ \sf \: a {}^{2} - {b}^{2} = (a - b)(a + b)\)

\(\sf \: Substitute \: the \: value \: of \: a \: and \: b \: in \: the \: identity.\)

\(\sf \: a = \sqrt{x ^{2} } = x \\ \sf \: b = \sqrt{5} \)

\(\sf \: the \: identity \: becomes \: \)

\(\sf {x}^{2} - 5 \\ \sf = (x - \sqrt{5} )(x + \sqrt{5} ) \\ \)

Answer ⟶ \(\boxed{\bf{(x - \sqrt{5} )(x + \sqrt{5} )}}\)