URGENT THIS IS FOR FINALS CAN SOMEONE PLZ SOLVE IT I will brain list​

I think this one is the answer

The angle in question measures 60 degrees.

What are supplementary angles?

Supplementary angles are two angles that has sum of 180 degrees. In other words, if you have two angles that are next to each other, and when you add them together, they equal 180 degrees, then those angles are considered to be supplementary.

Let x be the measure of the angle in question.

The supplement of an angle is the angle that, when added to the given angle, results in a sum of 180 degrees. So, the supplement of x is 180 - x.

The problem tells us that the given angle (x) is 120 degrees less than its supplement (180 - x).

Therefore, we can set up the equation:

x = (180 - x) - 120

Simplifying this equation, we get:

x = 60

So, the angle in question measures 60 degrees.

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Since your question doesn't specify what form you need your answer in, I’ll answer in slope intercept form.

Slope intercept form looks like this: y = mx + b.

m represents slope, b represents y intercept. we already have the slope, 2. To find the y intercept, we can plug in the given values for x and y and solve for x.

y = 2x + b

5 = 2(8) + b

5 = 16 + b

- 11 = b

so, the y intercept is - 11. we can plug this into your equation.

y = 2x - 11

There you go! this is your final answer.

Answer:

Answer:

The first one is B

Step-by-step explanation:

if you count how many faces or sides it has its 5

Answer:

1. B

2. D

3. D

4. A

5. C

REMEMBER TO DOUBLE-CHECK JUST IN CASE.

Answer:

17. 86 miles

Step-by-step explanation:

Th given statement "The second quartile for a set of data will have the same value as the 50th percentile only when the data are symmetric." is True because the condition is true only when data is symmetric.

The second quartile, also known as the median, represents the value that separates the lower 50% of the data from the upper 50% of the data. Similarly, the 50th percentile represents the value below which 50% of the data falls.

If the data are symmetric, it means that the distribution of the data is evenly balanced around the median value. In other words, if the data are folded in half at the median, the two halves will be roughly mirror images of each other.

In such a case, the median and the 50th percentile will have the same value since they both represent the value that separates the lower 50% of the data from the upper 50% of the data.

However, if the data are not symmetric, the median and the 50th percentile will generally have different values. In this case, the median may not provide a complete representation of the center of the distribution.

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Based on the given values, we can compute the expected returns and expected standard deviations for different weightings of the stocks in the portfolio. The results are as follows:

a. When w1 = 1.00, the expected return of the two-stock portfolio is 0.13, and the expected standard deviation is 0.03.

b. When w1 = 0.65, the expected return of the two-stock portfolio is 0.1095, and the expected standard deviation is 0.0214.

c. When w1 = 0.60, the expected return of the two-stock portfolio is 0.104, and the expected standard deviation is 0.0222.

d. When w1 = 0.30, the expected return of the two-stock portfolio is 0.074, and the expected standard deviation is 0.0262.

e. When w1 = 0.10, the expected return of the two-stock portfolio is 0.038, and the expected standard deviation is 0.0324.

To calculate the expected return of the two-stock portfolio, we use the weighted average of the individual expected returns based on the given weights. For example, in part (a), where w1 = 1.00, the expected return is simply equal to E(R1) = 0.13.

To calculate the expected standard deviation of the two-stock portfolio, we use the formula:

σ = √(w1^2 * E(a1)^2 + w2^2 * E(q2)^2 + 2 * w1 * w2 * E(a1) * E(q2) * ρ)

where E(a1) is the expected standard deviation of stock 1, E(q2) is the expected standard deviation of stock 2, and ρ is the correlation coefficient.

Regarding the risk-return graph, without the specific details of the graph options provided, it is not possible to determine which graph is correct for the given weightings and correlation coefficient. The graph would typically depict the risk-return tradeoff for different weightings and correlation coefficients, showing the relationship between expected return and expected standard deviation of the portfolio.

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Answer: A, D, F

The guy above me is wrong.

The equivalent radical expression of √4x * √x + 7 is √4x^2 + 28x

Expressions are mathematical statements that are represented by variables, coefficients and operators

The complete question is added as an attachment

The radical expression is given as

√4x * √x + 7

Rewrite the expression as

√4x * √x + 7 = √4x * (x + 7)

Evaluate the product

So, we have

√4x * √x + 7 = √4x^2 + 28x

Hence, t

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The 99% confidence interval for the amount spent on a child's last birthday gift, based on the survey of 13 people, is estimated to be between $8.3 and $53.7. This means that we are 99% confident that the true mean amount spent on a child's birthday gift falls within this range.

The confidence interval of ($8.3, $53.7) indicates that, based on the survey data, we can be 99% confident that the average amount spent on a child's last birthday gift is somewhere between $8.3 and $53.7.

In more detail, the confidence interval is calculated using the mean and standard deviation of the sample. The mean of $31 serves as the point estimate of the population mean, while the standard deviation of $18 provides a measure of the variability in the data. With a 99% confidence level, we are allowing for a higher level of certainty in capturing the true population mean within the interval.

The interval of ($8.3, $53.7) suggests that, on average, parents spend between $8.3 and $53.7 on their child's last birthday gift. It is important to note that this interval is specific to the sample and may not necessarily represent the true population mean.

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Answer:

Step-by-step explanation:

You want the values of C and 'a', given the graph of y = C·a^x.

When x = 0, ...

  y = C·a^0 = C·1 = C

The graph shows y = 1 when x = 0, so C = 1.

When x = 1, ...

  y = C·a^1 = C·a = 1·a = a

The graph shows y = 4 when x = 1, so a = 4.

#95141404393

The value of the variable are; C = 1 and a = 4

If we know that the function crosses the x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

We want the values of C and 'a', given the graph of y = C·a^x.

To find the Values of y

When x = 0,   y = C·a^0 = C·1 = C

The graph shows that y = 1 when x = 0, so C = 1.

When x = 1, then y = C·a^1 = C·a = 1·a = a

The graph shows that y = 4 when x = 1, so a = 4.

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Answer:

ok, what grade level? and you need to actually type the questions into here

I'll help because your pfp proves that you are indeed a classy individual

So.... using the point-slope formula

y-y₁=m(x-x₁)

y₁ is the y-coordinate

x₁ is x-coordinate

m is the slope

when we find the slope from both points we find that they both have a slope of 16/3

therefore... the lines are parallel

Answer:

FG = 47

Step-by-step explanation:

E--------F---------G

EG=75

EF=28

EF + FG = EG

28 + FG = 75

FG = 75 - 28

FG = 47

Answer:

15

Step-by-step explanation:

sorry if this is wrong :)

The meaning of this annotation: "| |" is Absolute value.

Solving for : |2(-7.5)|

|2(-7.5)| = |2 x (-7.5)|

= |-15|

|-15| = 15

Therefore, |2(-7.5)| = 15

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a (9, π/4) in polar coordinates corresponds to (x, y) = (9√2/2, 9√2/2) in rectangular coordinates. b (7, π/2) in polar coordinates corresponds to (x, y) = (0, 7) in rectangular coordinates. c (6, 0) in polar coordinates corresponds to (x, y) = (6, 0) in rectangular coordinates.

To convert from polar to rectangular coordinates, we can use the following formulas:

x = r * cos(θ)

y = r * sin(θ)

Let's apply these formulas to each given set of polar coordinates:

(a) (9, π/4):

Using the formulas, we have:

x = 9 * cos(π/4) = 9 * (√2/2) = 9√2/2

y = 9 * sin(π/4) = 9 * (√2/2) = 9√2/2

Therefore, the rectangular coordinates are (x, y) = (9√2/2, 9√2/2).

(b) (7, π/2):

Using the formulas, we have:

x = 7 * cos(π/2) = 7 * 0 = 0

y = 7 * sin(π/2) = 7 * 1 = 7

Therefore, the rectangular coordinates are (x, y) = (0, 7).

(c) (6, 0):

Using the formulas, we have:

x = 6 * cos(0) = 6 * 1 = 6

y = 6 * sin(0) = 6 * 0 = 0

Therefore, the rectangular coordinates are (x, y) = (6, 0).

In summary:

(a) (9, π/4) in polar coordinates corresponds to (x, y) = (9√2/2, 9√2/2) in rectangular coordinates.

(b) (7, π/2) in polar coordinates corresponds to (x, y) = (0, 7) in rectangular coordinates.

(c) (6, 0) in polar coordinates corresponds to (x, y) = (6, 0) in rectangular coordinates.

It is important to note that converting from polar to rectangular coordinates allows us to express points in the Cartesian coordinate system, where x represents the horizontal position and y represents the vertical position. By using the formulas x = r * cos(θ) and y = r * sin(θ), we can determine the corresponding rectangular coordinates based on the given polar coordinates.

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Answer:  18

Step-by-step explanation:

Angles of a quadrilateral add to 360 degrees, so

\(100+100+70+5x=360\\\\270+5x=360\\\\5x=90\\\\x=18\)

The area of the circle, as a function of x, will be:

A(x) = 3.14*(3ft + 2x)²

We know that for a circle of radius R, the area is:

A = pi*R²

Where pi = 3.14

In this case we have a circular plot of land with a diameter of 6ft, then the radius (half of that) is:

R = 6ft/2 = 3ft

And then we have a walkway with a width of 2x, then the radius of the circle that includes the walkway is:

R' = 3ft + 2x

Replacing that in the area equation we will get:

A(x) = 3.14*(3ft + 2x)²

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Answer:

27 + 10d

Step-by-step explanation:

Answer:

10d+27

Step-by-step explanation:

Rearrange terms

3

(

9

+

2

)

+

4

3

(

2

+

9

)

+

4

2

Distribute

3

(

2

+

9

)

+

4

6

+

2

7

+

4

3

Combine like terms

6

+

2

7

+

4

1

0

+

2

7

In a simple regression model, the unexplained variation in the response variable is determined by summing the squares of errors. This method, known as residual sum of squares (RSS), quantifies the discrepancy between the observed values and the predicted values by the regression model.

In a simple regression model, the goal is to find a line that best fits the relationship between a single predictor variable (X) and a response variable (Y). However, due to various factors and sources of variability, the observed values of the response variable may not perfectly align with the predicted values based on the regression line.

The errors, or residuals, are the differences between the observed values and the predicted values. To quantify the unexplained variation, the errors are squared to eliminate negative values and emphasize larger deviations. These squared errors are then summed up, resulting in the residual sum of squares (RSS).

By calculating the RSS, one can assess the amount of unexplained variation or "error" in the regression model. A smaller RSS indicates that the model provides a better fit to the data, as it suggests less unexplained variation. On the other hand, a larger RSS implies a less accurate fit, with more unexplained variation in the model.

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we are asked to solve a system of inequalities that reads:

18 + 2 x < 12

5 x + 2 >= - 18

so we solve for x in each one:

18 + 2 x < 12

subtract 18 from boths sides:

2 x < 12 - 18

2 x < - 6

divide by 2 both sides:

x < - 3

5 x + 2 >= - 18

subtract 2 from both sides:

5 x >= - 20

divide both sides by 5:

x >= -4

so this tells us that we want x values larger than or equal to -4 and x values smaller than -3.

So, please allow me to plot these two sections and see if there is an intersection of both sets:. The graphing can take a little time, so please be patient.

Notice that we have highlighted in green the section of the number line with x-values to the RIGHT of -4 (and also including the "-4" point with a "solid dot".

On the other extreme of this segment we see an "empty dot" at the point -3 on the number line. In this case we are NOT including the value "-3" as per the inequality that asks for x numbers strictly smaller than -3 (so to the left of "-3" NOT including "-3" (represented by the empty dot.

So the graph of the compounded inequality is given above, and the mathematical way to express it is:

- 4 <= x < - 3

Answer:

Step-by-step explanation:

interval in mathematics stands for a set of real numbers,

denoted by [a,b] where a and b are the starting and ending real numbers both inclusive respectively.

thus, interval [a,b] is the set of real numbers starting from a to b both are real numbers and are included.

The correct answer is (c) Continuous random variable.

A discrete uniform distribution is characterized by the following:

(a) Equal probability for each possible outcome: In a discrete uniform distribution, each possible outcome has an equal probability of occurring.

(b) Finite number of possible outcomes: The distribution has a finite number of possible outcomes, which are typically integers or a discrete set of values.

(d) Uniform distribution: The distribution is uniform, meaning that the probabilities of each outcome are the same.

However, a discrete uniform distribution is not characterized by a continuous random variable. In a discrete distribution, the random variable can only take on a finite or countable number of distinct values, while a continuous random variable can take on any value within a specified range.

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9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Point A is arbitrarily located. We have drawn the circle on a grid, so have made points A and E on orthogonal axes through point O.

1. Point B can be anywhere on the circle except on line AO.

2. Making circle A have the same radius as circle O puts points C and D 120° apart.

3. In this diagram, OF bisects right angle EOA, so central angle EOF is 45°.

Answer:

141 Degrees

Step-by-step explanation:

Sum of interior angles of a polygon = \((n-2) \times 180^{\circ}\)

(where n is the number of sides)

The given figure has 8 sides, therefore:

⇒ sum of interior angles = (8 - 2) × 180°

                                          = 6 × 180°

                                          = 1080°

To find x, sum all the given angles, equate to 1080°, then solve for x:

⇒ x + 162 + (x - 12) + (x + 30) + x + 133 + (x + 16) + 126 = 1080

⇒ 5x + 455 = 1080

⇒ 5x = 625

⇒ x = 125

Therefore, (x + 16) = 125 + 16 = 141°

Answer:

sorry I could not help you but I wish you luck

The second derivative of sin2x is d/dx(sin 2x) = 2 cos 2x.

\(\textbf{First derivative:}\\\\~~\dfrac{d}{dx}(\sin^2 x) \\\\\\= 2 \sin x \cdot \dfrac{d}{dx} (\sin x)\\\\\\=2 \sin x \cos x\\\\\\=\sin 2x\\\\ \textbf{Second derivative:}\\\\\dfrac{d^2}{dx^2} (\sin^2 x)\\\\\\=\dfrac{d}{dx}(\sin 2x)\\\\\\=\cos 2x \dfrac{d}{dx}(2x)\\\\\\=2 \cos 2x\\\\\text{Hence, the second derivative of the given function is}~ 2 \cos (2x).\)