What is the value of x?

Answer:

D

Step-by-step explanation:

If we do 8:35 + 40 mins it equals to 9:15

So then we have to add 5 hours to equal to 2:15 :D

Yes, that is correct. The sides of an equilateral triangle inscribed in a circle are closer to the center of the circle than the sides of a square inscribed in the same circle.

This is because an equilateral triangle has all its vertices on the circumference of the circle, whereas a square has only four of its vertices on the circumference. As a result, the sides of the equilateral triangle are closer to the center of the circle than the sides of the square. This property of inscribed shapes is important in geometry and has many practical applications in fields such as architecture and engineering.

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Answer:

< DGB = 101

Step-by-step explanation:

< CGB is equal to 79

< CGB is another name for < 1

We want to find < DGB which is another name for <2

< 1 and < 2 are a linear pair

<1 + <2 = 180

79 + <2 = 180

<2 = 180-79

<2 = 101

< DGB = 101

Answer:

The answer is 101

Step-by-step explanation:

Since a line has an angle of 180°

To know DGB we will just subtract 79 from 180

hence DGB=180°-79°

=101°

Estimate of the probability that the stock's price will be up at least 30 after 1000 time periods.

How to estimate probability of stock's price increase after 1000 time periods?

To approximate the probability that the stock's price will be up at least 30 after 1000 time periods, we would need historical data or information about the stock's price movements and their corresponding probabilities. Without specific data or a model to work with, it's difficult to provide an accurate estimate.

However, if we assume that the stock's price movements follow a normal distribution, we can make some rough calculations. We'll need the mean and standard deviation of the stock's price changes over a single time period.

Let's say the mean price change over a single time period is μ and the standard deviation is σ. We can then calculate the mean and standard deviation for 1000 time periods by multiplying the mean and standard deviation by 1000^(1/2) (since the variance of a sum of independent random variables is the sum of their variances).

Let's denote the mean and standard deviation for 1000 time periods as μ_1000 and σ_1000, respectively.

Now, we want to calculate the probability that the stock's price will be up at least 30 after 1000 time periods. We can use the cumulative distribution function (CDF) of the normal distribution to calculate this probability.

P(X ≥ 30) = 1 - P(X < 30)

Where X follows a normal distribution with mean μ_1000 and standard deviation σ_1000.

Using the mean and standard deviation values, you can calculate the probability using statistical software or programming languages that provide functions for the normal distribution.

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Answer: 13.6

Step-by-step explanation:

subtract the lowest number from the highest number to find the range. in this case, the data range is 25.6−12=13.6

A researcher conducted an independent groups t test. There were 30 participants in this study.

The number of participants in the study is given by the degrees of freedom (df) for the t-test, which is calculated as:

df = n1 + n2 - 2

where n1 and n2 are the sample sizes for the two groups being compared.

In this case, we are not given the sample sizes directly, but we are given the t-value and the degrees of freedom. We can use a t-table or a statistical software to find the p-value associated with this t-value, and then use the p-value to calculate the degrees of freedom.

Assuming a two-tailed test with a significance level of 0.05, the p-value for a t-value of 3.77 and 30 degrees of freedom is approximately 0.001. This means that the probability of observing a t-value of 3.77 or more extreme under the null hypothesis (that there is no difference between the two groups) is 0.001.

Since the p-value is less than the significance level of 0.05, we reject the null hypothesis and conclude that there is a significant difference between the two groups. Therefore, we can assume that the sample sizes are reasonably large (typically, at least 20 for each group) and use the formula for degrees of freedom as:

df = n1 + n2 - 2 = 30

Therefore, there were 30 participants in this study.

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Principal =P = $18,000

time = T = 10 years

(a) Simple interest

SI = P x R x T

Where:

R = simple interest in decimal form = 5/100= 0.05

SI = 18,000 x 0.05 x 10 = $9,000

Value of investment = 18,000 + 9,000 = $27,000

(b) compounded monthly

A = P (1 + r/n )^nt

Where:

A= future amount

n = number of compounding periods per unit t = 12

A= 18,000 (1 + 0.05/12)^12*10

A= $29,646.17

Therefore, the options "it is usually shown on the horizontal axis of a scatter diagram" and "it is usually shown on the vertical axis of a scatter diagram" could both be true, depending on the preference of the researcher or the convention used in a particular field or context.

Neither of the variables is considered as the dependent variable in a correlation analysis. Correlation refers to the strength of the relationship between two variables, without implying a cause-and-effect relationship or assigning one variable as the independent or dependent variable. Therefore, the options "in a cause and effect relationship, it is the effect" and "in a cause and effect relationship, it is the cause" are not applicable.

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The time spent on homework will be naturally more an explanatory variable and exam grade a response variable.

The Linear equation for a scatter plot y = mx+b has two variables i.e., a Dependent Variable [Y] and an Independent variable [X] .

A student who spends more time on his work and do it nicely will automatically get good exam grade . On the other side, a student who did'nt dedicate much time to the homework and carelessly does it , will obviously score a low exam grade.We can see that the exam grade is dependent on the time spent on the homework which naturally makes exam grade a response variable and time spent on home a independent thus an explanatory variable.

Hence, the time spent on homework will be naturally more an explanatory variable and exam grade a response variable.

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According to the given statement;

The statement is False. Data at the ordinal level can be qualitative or quantitative.

Ordinal data is a form of categorical statistical data where the distances between the categories are unknown and the variables have naturally occurring, ordered categories.

Ordinal is the second of four levels of measurement in a hierarchy that also includes nominal , ordinal , interval , and ratio. The degrees of measurement show how well the data were recorded.

In contrast to nominal and ordinal variables, which are categorical, interval and ratio variables are quantitative.

According to the given data,

The statement is False.

Data at the ordinal level can be qualitative or quantitative.

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Answer:

Manisha age = 15 years

Step-by-step explanation:

Let

Manisha age = x

Amir = 2/3 of Manisha age

Amir = 10 years

Amir:

2/3 of x = 10

2/3 * x = 10

2/3x = 10

x = 10 ÷ 2/3

= 10 × 3/2

= (10*3)/2

= 30/2

= 15

x = 15 years

Therefore,

Manisha age = 15 years

Answer:

256 it's the answer

Step-by-step explanation:

HOPE THAT HELPS!!!!!!!!

Answer:

B. 2.2 kilometers

Step-by-step explanation:

⭐What is the change in the cyclist's elevation?

Thus, we need to solve for the value of the height (x) of the hill.

Notice that the hill is in the shape of a right triangle. In order to find an unknown side length for right triangles, we need to use a trigonometric function.

⭐What is a trigonometric function?

First, let's see what kind of side lengths we are given (opposite, hypotenuse, or adjacent).

We are given a side length of 10km, which is the hypotenuse of the triangle, and we are given a side length of x, which is the opposite of θ (13°).

Therefore, we will use the trigonometric function sin(θ) to solve for x.

Substitute the side lengths and angle measures we are given:

\(sin(13) = \frac{x}{10}\)

Set the equation equal to x:

\(10sin(13) = x\)

Solve for x. I recommend using a scientific calculator (e.g. Desmos Scientific Calculator):

\(2.2 = x\)

∴ The cyclist's change in elevation is 2.2 kilometers.

The question is wrong because as the given angle is 90, the hypotenuse(11cm) should be greater than 16cm

Answer:

cant solve

Step-by-step explanation:

(sorry im not good at english) because there is no right triagle in which the length of the side of the right angle is greater than the length of the hypotenuse.

ahemmm the so-called curved area, will be the "latereal surface area" of the cylinder, and we know that that is 250 cm², whilst the height h = 12.

\(\textit{lateral area of a cylinder}\\\\ LA=2\pi rh~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ LA=250\\ h=12 \end{cases}\implies \begin{array}{llll} 250=2\pi r(12)\implies 250=24\pi r \\\\\\ \cfrac{250}{24\pi }=r\implies \cfrac{125}{12\pi }=r \end{array} \\\\[-0.35em] ~\dotfill\)

\(\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=\frac{125}{12\pi }\\ h=12 \end{cases}\implies \begin{array}{llll} V=\pi \left( \cfrac{125}{12\pi } \right)^2 (12) \\\\\\ V=\cfrac{15625}{12\pi }\implies V\approx 414.47 \end{array}\)

Answer:

3.5m

Step-by-step explanation:

Volume of pyramid = lwh÷3

25.77 = [(4.7)² × x] ÷ 3

25.77 × 3 = 22.09x

77.31 = 22.09x

x = 77.31 ÷ 22.09

= 3.49

= 3.5m

The correct answer is A) 16. It would take 16 hours to fill the container if 5/8 of a gallon is added each hour.

If 5/8 of a gallon is added to the container each hour, we can calculate the number of hours it would take to fill the container.

Let's assume it takes "h" hours to fill the container. In each hour, 5/8 of a gallon is added. Therefore, in h hours, the total amount of water added would be (5/8) * h gallons.

According to the problem, the container holds 10 gallons of water. So, we can set up the equation:

(5/8) * h = 10

To solve for h, we can multiply both sides of the equation by 8/5:

h = 10 * (8/5)

h = 16

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Answer:

Add 8 to the y value of point p, (4, -2 +8)So the location of the second light is on point (4,6)

The slope of the regression line is  b=61.02 and y-intercept is a=3.12

Regression analysis is a set of statistical processes used to estimate the relationships between a dependent variable and one or more independent variables. Linear regression is the most popular type of regression analysis, in which one finds the line (or a more sophisticated linear combination) that best fits the data according to a certain mathematical criterion. The ordinary least squares method, for example, finds the unique line (or hyperplane) that minimizes the sum of squared discrepancies between the genuine data and that line (or hyperplane). This enables the researcher to estimate the

Given,

The regression line is y=3.12+61.02 s

Here the slope is b=61.02

The slope indicates that the distance is increased by 61.02 yards for every one mile per hour of the speed.

And the y-intercept is a=3.12

It is the distance estimated by this model if the speed is zero miles per hour.

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Answer:

$420

Step-by-step explanation:

100.80/x = 24/100

with x being the regular price

x = (100.8*100)/24

x = 420

Answer:

its the 3rd choice, 9/10

Step-by-step explanation:

Answer:

BD = 28

Step-by-step explanation:

BC and CD are within line BD, so add those to make up for the length of BD

21 + 7 = 28

Answer:

3.2h

Step-by-step explanation:

Remaining distance = Total distance - Distance already covered

Remaining distance = 12 km - 4 km

Remaining distance = 8 km

Time = Distance ÷ Speed

Time = 8 km ÷ 2.5 km/h

Time = 3.2 hours

Therefore, Jody needs approximately 3.2 more hours to complete the hike.

Answer:

a, b and f

both arent proportianal or it would line up

but m is linear(straight) whil n isnt because it curves

and  they both do increase

You said:

Answer:

A B F if not a and d

Step-by-step explanation:

The equation of the parabola in vertex form is y = (-1/12)(x + 3)^2 + 2, which opens downwards since the leading coefficient is negative.

The equation of the given parabola in vertex form is y = a(x + 3)^2 + 2, where a is a constant that depends on whether the parabola opens up or down.

To determine the value of a, we can use the fact that the parabola passes through (-7, 2/3). Substituting these values into the equation, we get:

2/3 = a(-7 + 3)^2 + 2

2/3 = 16a + 2

16a = -4/3

a = -1/12

Therefore, the equation of the parabola in vertex form is

y = (-1/12)(x + 3)^2 + 2.

The vertex form of a parabola is y = a(x - h)^2 + k, where (h, k) is the vertex of the parabola. In this case, we are given that the vertex is (-3, 2), so we can write the equation as y = a(x + 3)^2 + 2.

To find the value of a, we use the fact that the parabola passes through (-7, 2/3). Substituting these values into the equation, we get 2/3 = a(-7 + 3)^2 + 2. Simplifying this equation, we get 2/3 = 16a + 2, which we can solve for a to get a = -1/12.

Therefore, the final equation of the parabola in vertex form is y = (-1/12)(x + 3)^2 + 2, which opens downwards since the leading coefficient is negative.

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Answer:

Brad's shadow is 3 feet long

Step-by-step explanation:

If a tree is 24 feet tall, and casts a shadow 12 feet long, The we know the shadows will be half as big as the main object.

Because Brad is 6ft tall, His shadow will be half of his hight (3ft long)

The slope of the tree to shadow is equal to the slope of Brad to shadow. The Brad's shadow is 3 ft long.

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function. The Pythagoras is the sum of the square of two sides is equal to the square of the longest side.

A tree 24 feet tall casts a shadow 12 feet long.

Brad is 6 feet tall.

The slope of the tree to shadow is equal to the slope of Brad to shadow (x). Then we have

\(\rm \dfrac{x}{6} = \dfrac{12}{24}\\\\x \ = \dfrac{6*12}{24}\\\\x \ = 3\)

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Answer:

y = -4x^2 - 3x + 4

x = 5

y = -4(5)^2 - 3(5) + 4

y = -4(25) - 15 + 4

y = -100 - 15 + 4

y = -114

Step-by-step explanation: