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Calculate the mean of Bryanna's test scores if she has scored 75, 97, and 92 so far this
semester
A 284
o
B
88
c. 75
D

The perimeter of the quadrilateral is 46 units, so the correct option is d.

The perimeter is equal to the sum of the lengths of all the sides of the quadrilateral.

Remember that the length of a segment whose endpoints are (x₁, y₁) and (x₂, y₂) is:

L = √( (x₁ - x₂)^2 + (y₁ - y₂)^2)

The length between the first two vertices: (−6, −2), (0, −10)

L₁ = √( (-6 - 0)^2 + (-2 + 10)^2) = 10

The length between the second two vertices:  (0, −10), (5, 2)

L₂ = √( (0 - 5)^2 + (-10 - 2)^2) = 13

The length between the third two vertices:  (5, 2), (−1, 10)

L₃ = √( (5 + 1)^2 + (2 - 10)^2) = 10

The length between the fourth two vertices:  (−1, 10), (−6, −2)

L₄ = √( (-1 + 6)^2 + (10 + 2)^2) = 13

Then the perimeter is:

P = 10 + 13 + 10 + 13 = 46

The correct option is D.

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Answer:

3360

Step-by-step explanation:

(77x80)-(175+600+2025)

The determinant of the given matrix is 1.

To evaluate the determinant of the given matrix by inspection, we can use the property that the determinant of a 4x4 matrix can be found by subtracting the products of the diagonals going in one direction from the products of the diagonals going in the other direction.

In this case, the diagonal going from top left to bottom right consists of the elements 0, 1, 1, and 1, and the diagonal going from top right to bottom left consists of the elements 0, 0, 0, and 1. Therefore, the determinant is (0111) - (1100) = 1.

For the second part, to find all values of k for which the matrix A is invertible, we can use the property that a square matrix is invertible if and only if its determinant is nonzero. Therefore, we need to find all values of k for which det A ≠ 0.

Using the same formula as before, we can calculate the determinant of A to be k(16k-240). Thus, det A ≠ 0 when k ≠ 0 and k ≠ 15, since those are the values of k that would make the determinant equal to zero. Therefore, all values of k except 0 and 15 make the matrix A invertible.

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Answer:

\(x < 5\)

Step-by-step explanation:

\(3x + 7 > 4x + 2 \\ 7 - 2 > 4x - 3x \\ 5 > x\)

\(x < 5\)

Answer:

Given that the average house price in 2007 was 5% lower than in 2006, while the average house price in 2008 was 5% greater than in 2007, to explain why the average price of house in 2008 is not the same as the average house price in 2006 the following logical reasoning must be carried out:

If, for example, in 2006 the median home price was $ 100,000, a 5% drop in 2007 would bring the median price to $ 95,000. In turn, if this price were to increase by 5% for 2008, said value would rise to $ 99,750. This is so because the 5% is calculated based on a smaller number, with which the rise will be, therefore, also smaller.

Answer:

32

Step-by-step explanation:

8x4=32

Answer:need more time to solve-

Step-by-step explanation: A= b x h

The number that is divisible by both 2 and 4 is option c. 2,836.

To determine which number is divisible by both 2 and 4, we need to identify the number that is divisible by the prime factorization of both 2 and 4.

To be divisible by 2, a number must be even, meaning it should end with 0, 2, 4, 6, or 8. Looking at the given options, we can eliminate options a. 1,022 and d. 2,918 because they end with 2 and 8 respectively.

To be divisible by 4, a number must be divisible by 2 twice. In other words, the last two digits of the number should form a multiple of 4. Examining the remaining options b. 1,974 and c. 2,836, we find that only option c. 2,836 satisfies this condition. The last two digits of 2,836, 36, form a multiple of 4 (9 times 4 is 36).

Therefore, the number 2,836 is divisible by both 2 and 4, hence the correct answer is: c.2,836

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x = 1/2 × 68

  = 34

That's the rule just its half also y is the same thing while x and y are looking at the same arc

:>

Both (If you rotated both of them they would be the same or slightly bigger)

Answer:

Both are similar but the definition of B is precise as it speaks of WYZ meaning W to Y = W + Y + Z = 180  However as shapes they are all congruent as 2 angles are given that match so the the definition of B is precise as it speaks of WYZ

Step-by-step explanation:

Using the unit circle:

Answer: For this Answer, You need to multiply both of the numbers together.

Step-by-step explanation:

11.25 * 12.5 = 140.625 inches or just 140 inches

Hope this help you out!

Answer:

\( \frac{29}{9} \)

Step-by-step explanation:

3.2 repeating = 3.2222....

let's make it equal to x

x = 3.2222....

we want to eliminate the infinitely repeating digits, so let's multiply 3.2222.... by 10 and equate it to 10x

3.2222.... × 10 = 32.2222....

10x = 32.2222....

Now we have

x = 3.2222....

10x = 32.2222....

They both have an infinite number of repeating twos so subtract x from 10x to get rid of the repeating digits after the decimal point

Rewriting it as

10x = 32.2222....

x = 3.2222....

10x - x = 9x and 32.2222.... - 3.2222.... = 29

equate both

9x = 29

divide both sides by 9

x = 29/9

Answer:

the reciprocal of 1 is 1

Step-by-step explanation:

1/1 flipped is still equal to 1

Answer:

Each piece is 1.12 meters long

Step-by-step explanation:

7 equal pieces = divide x by 7

equation: 7.84 / 7

Answer:175

Step-by-step explanation:

general term=Tn=6n-5

T30=(6×30)-5

      =180-5

      =175

The probability that a sequence will contain exactly one 0 is 3/8.

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1,

We should consider sequences of three digits, where each digit is either 0 or 1. A sequence has three places .

where each place has two possibilities, i.e., 0 or 1, so, for the multiplication rule

we know that the sample space will have (2)(2)(2) = 8 sample points.

Specifically, the sample space is

S = {111, 110, 101, 011, 100, 010, 001, 000},

There are three sequences with exactly one 0.

Therefore the probability that a sequence will contain exactly one 0 is 3/8.

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There are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

The multiplication principle states that if there are m ways to perform one task and n ways to perform another task, then there are m x n ways to perform both tasks together.

To find the number of ways to choose 3 men from the 12 men, we can use the formula for combination, which is: ⁿCᵣ = n! / (r! (n-r)!).

where n is the total number of men and r is the number of men chosen

so, the number of ways to choose 3 men from the 12 men = ¹²C₃ = 1.

Similarly, we evaluate the number of ways to choose 2 women from the 8 women

as = ⁸C₂ = 14

Now, using the multiplication principle, we can find the total number of ways 3 men and 2 women be chosen if they are equally considered.

220 x 14 = 3080

Therefore, there are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

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Answer:

y= 2x+4

Step-by-step explanation:

To find slope its y2-y1/x2-x1

Plug it into any coordinate to get 2x

To find b in y=mx+b, you look at the y at the 0, in this case, "(0,4) Thefore the b is 5

Answer:

−(d+1)>3

Step 1: Simplify both sides of the inequality.

−d−1>3

Step 2: Add 1 to both sides.

−d−1+1>3+1

−d>4

Step 3: Divide both sides by -1.

\(\frac{-d}{-1}\) >  \(\frac{4}{-1}\)

d < -4

Answer:

The given theorem proves that the door is not a rectangle right now since, the door came out of shape, it can be proved by the Pythagorean theorem. If the length is set to a certain shape, and the width is set to a certain shape, and drawn to diagonals. If solved by the Pythagorean Theorem, if the length of two diagonals are similar then and only then the door would be a rectangle.

Hope this helps!

Answer:

See picture

Step-by-step explanation:

The 98% confidence interval for the difference in population proportions is (-0.0627, 0.0627).

To construct a confidence interval for the difference in population proportions, we need the sample sizes and proportions from both states. The newspaper article mentions that people were surveyed in two states. In the first state, the proportion opposed to the court decision (p1) is not specified, but it is mentioned that it is denoted as B0% (presumably meaning below 50%). In the second state, there were 520 people surveyed, and the proportion opposed (p2) is given as 20. Based on this information, we can calculate the confidence interval for the difference in population proportions.

Using the formula for the confidence interval for the difference in proportions and rounding to four decimal places, the 98% confidence interval is (-0.0627, 0.0627). This means that we are 98% confident that the true difference in population proportions falls within this interval. The interval includes zero, indicating that there may not be a statistically significant difference between the proportions opposed to the court decision in the two states.

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Answer:

1 is C and 2 is B

Step-by-step explanation:

Answer:

2/8 and then u can do this 2/8 2/4

Step-by-step explanation:

The trigonometric function for an angle \(\dfrac{\pi}{4}\) is

\(tan\theta =1\ \ \ \ Cos \theta=\dfrac{\sqrt{2}}{2}\ \ \ \ Sin\theta = \dfrac{\sqrt{2}}{2}\)

The trigonometric function for an angle \(\dfrac{\pi}{6}\) will be:-

\(tan\theta = \dfrac{1}{\sqrt3}}\ \ \ \ \ Sin\theta = \dfrac{1}{2} \ \ \ \ \ Cos \theta = \dfrac{\sqrt{3}}{2}\)

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.

The trigonometric function for an angle \(\dfrac{\pi}{4}\) is

\(tan\theta = tan\dfrac{\pi}{4}=1\ \ \ \ Cos \theta=Cos\dfrac{\pi}{4}=\dfrac{\sqrt{2}}{2}\ \ \ \ Sin\theta =Sin\dfrac{\pi}{4}= \dfrac{\sqrt{2}}{2}\)

The trigonometric function for an angle \(\dfrac{\pi}{6}\) will be:-

\(tan\theta=tan \dfrac{\pi}{6}= \dfrac{1}{\sqrt3}}\ \ \ \ \ Sin\theta =Sin\dfrac{\pi}{6}= \dfrac{1}{2} \ \ \ \ \ Cos \theta = Cos\dfrac{\pi}{6}= \dfrac{\sqrt{3}}{2}\)

Therefore the trigonometric function for an angle \(\dfrac{\pi}{4}\) is

\(tan\theta =1\ \ \ \ Cos \theta=\dfrac{\sqrt{2}}{2}\ \ \ \ Sin\theta = \dfrac{\sqrt{2}}{2}\)

The trigonometric function for an angle \(\dfrac{\pi}{6}\) will be:-

\(tan\theta = \dfrac{1}{\sqrt3}}\ \ \ \ \ Sin\theta = \dfrac{1}{2} \ \ \ \ \ Cos \theta = \dfrac{\sqrt{3}}{2}\)

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The answer to this question is A. It is not reasonable to conclude that heart or respiratory diseases were the cause of approximately 29% of U.S. deaths in 2011 because there is a possibility of overlap.

This means that some people who died from heart disease may have also had respiratory diseases, and vice versa.

Therefore,

It is impossible to accurately determine the exact percentage of deaths caused by each individual disease.
It is important to note that the Centers for Disease Control lists the causes of death in the United States as the underlying cause, which is defined as the disease or injury that initiated the train of events leading directly to death.

However,

Many people who die from one disease may also have other underlying or contributing conditions.

This makes it difficult to determine the exact cause of death in some cases.
There could be potential overlap between heart and respiratory diseases, it is not reasonable to conclude that heart or respiratory diseases were the cause of exactly 29% of U.S. deaths in 2011.

In summary,

While heart and respiratory diseases were listed as the cause of a significant percentage of deaths in the United States in 2011, it is not accurate to conclude that they were the sole cause of approximately 29% of deaths due to the possibility of overlap.

It is important to consider all contributing factors when analyzing causes of death data.

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Answer: The Answer is -75 percent change



Step-by-step explanation:

Answer:

25% increase

Step-by-step explanation:

20/80=.25

The least accurate measurement among the options provided is 18050 m.Therefore, among the given options, 18050 m is the least accurate measurement due to its higher number of significant figures.

To determine the least accurate measurement, we need to consider the number of significant figures in each measurement. The measurement with the fewest significant figures indicates lower accuracy.

Among the options given:

a. 208 m has three significant figures.

b. 18050 m has five significant figures.

c. 0.08 m has two significant figures.

d. 0.750 m has three significant figures.

e. 12.0 m has three significant figures.

The measurement with the least accurate value is 18050 m because it has the highest number of significant figures among the options. A higher number of significant figures suggests a greater level of precision and accuracy in the measurement.

Significant figures represent the digits in a number that contribute to its precision. They include all the non-zero digits and any zeros that appear between non-zero digits or after a decimal point. In this case, the measurement 18050 m has five significant figures, indicating a high level of precision and accuracy.

On the other hand, measurements with fewer significant figures imply less precision and accuracy. For example, the measurement 0.08 m has only two significant figures, suggesting less certainty in the measurement compared to 18050 m.

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Answer:

-4

Step-by-step explanation:

When looking at the graph look at the y axis and look to see where the line passes through

Answer:

-4 is the y intercept.

Step-by-step explanation:

Brainliest? Have a great day!

Answer:

D) 394.68cm^2

Step-by-step explanation:

Area of a parallelogram is calculated by multiplying height to the base

13.8 × 28.6 = 394.68

Answer:

area of parallelogram= length of base × perpendicular height

28.6×13.8

= 394.68m²