A fisherman recorded the weight of each black bass he caught during a fishing trip: {12, 7, 8, 13, 6, 14}

Answer:

The number of cds to be sold to hit a weekly revenue of 1000 pesos is 25

Step-by-step explanation:

Here, we have the revenue function and we want to know the number of cds to be sold to hit a particular revenue value.

Mathematically from the question;

r = 2x^2 - 10x

in the question; r = 1000

so ;

2x^2 - 10x = 1000

divide through by 2

x^2 -5x = 500

so;

x^2 -5x -500 = 0

x^2 -25x + 20x -500 = 0

x (x -25) + 20(x -25) = 0

(x -25)(x + 20) = 0

x -25 = 0 or x + 20 = 0

x = -20 or 25

Since the number of cds cannot be negative, we only select x = 25 as the correct answer

The answer might be (45/29).

Answer:

A. 100

Step-by-step explanation:

84

Step-by-step explanation:

c + 100 =180

c=180-100

c=80

100+96+d+c=360

100+96+d+80=360

276+d=360

d=360-276

d=84

When examining group differences with a specified direction, a one-tailed test is used i.e., option b is correct.

In statistical hypothesis testing, researchers often have a specific direction in mind when comparing two groups.

For example, they may hypothesize that Group A performs better than Group B or that Group A has a higher mean than Group B. In such cases, a one-tailed test is appropriate.

A one-tailed test is designed to detect differences in a specific direction. It focuses on evaluating whether the observed data significantly deviates from the null hypothesis in the specified direction.

The null hypothesis assumes no difference or no relationship between the groups being compared.

In a one-tailed test, the critical region is defined on only one side of the distribution, corresponding to the specified direction of the difference.

The critical value, which determines whether the observed difference is statistically significant, is chosen based on the desired level of significance (e.g., alpha = 0.05).

On the other hand, a two-tailed test is used when the direction of the difference is not specified, and the researchers are interested in determining whether there is a significant difference between the groups in either direction.

In this case, the critical region is divided equally between the two tails of the distribution.

A directional hypothesis (option C) is a statement that specifies the expected direction of the difference, but it is not the statistical test itself. The critical value (option D) is the value used to determine the cutoff for rejecting or accepting the null hypothesis.

Therefore, when examining group differences with a specified direction, a one-tailed test is used to assess the statistical significance of the observed difference in that particular direction.

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Answer:

The answer is that the ball was in the air for 0.56 seconds when it was 54 feet above the ground. This was determined by using the Quadratic Formula to solve the equation 54 = -16s^2 + 96s for the variable s.

Step-by-step explanation:

To solve this equation, we can use the Quadratic Formula, which states that for a quadratic equation in the form ax^2 + bx + c = 0, the solutions are given by:

x = (-b +/- sqrt(b^2 - 4ac)) / (2a)

In this case, a = -16, b = 96, and c = -54. Plugging these values into the Quadratic Formula, we get:

s = (-96 +/- sqrt(96^2 - 4 * -16 * -54)) / (2 * -16)

= (96 +/- sqrt(9216 + 4352)) / -32

= (96 +/- sqrt(13,568)) / -32

Since we want the time (in seconds) that the ball was in the air, we need to find the positive solution to this equation. Thus, we have:

s = (96 + sqrt(13,568)) / -32

= (96 + 120) / -32

= 0.5625 seconds

Rounding this value to the nearest hundredth of a second, we get 0.56 seconds. This means that the ball was in the air for 0.56 seconds when it was 54 feet above the ground.

To solve this equation, we used the Quadratic Formula. This method allowed us to find the time (in seconds) that the ball was in the air by solving for the value of the variable s in the given equation. This helped Vue answer his question by providing a numerical value for the amount of time that the ball was in the air when it was 54 feet above the ground.

Answer:

14 minuts.

Step-by-step explanation:

350 divided by 25 is 14.

Please mark brainiest tysm

Answer:

brah

Step-by-step explanation:

Answer:

the answer is 56.25

Step-by-step explanation:

.32x=18

×=56.25

The fractions of students that attended the dance is 11/19

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

Number of students = 380

Number of students in attendance = 220

The fraction is then represented as

Fraction = Number of students in attendance/Number of students

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

Fraction = 220/380

Simplify

Fraction = 11/19

Hence, the fraction is 11/19

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A parallelogram by definition is a four-sided figure with opposite sides that are parallel.

If that's the case, the length of opposite sides should be the same as well, meaning that:

then,

find AB

A

To test a hypothesis using the p-value approach, you need to follow these steps:

1. Formulate the null and alternative hypotheses:
  - The null hypothesis, denoted as H0, states that there is no significant difference or relationship between the variables being studied.
  - The alternative hypothesis, denoted as Ha or H1, states that there is a significant difference or relationship between the variables.

2. Verify the requirements of the test:
  - Before performing the hypothesis test, you need to ensure that the assumptions and requirements of the test are met. These requirements may vary depending on the type of test and data you have. Common requirements include independence, random sampling, normality, and equal variances.

3. Choose an appropriate significance level (α):
  - The significance level, denoted as α, is the predetermined threshold below which we reject the null hypothesis. Commonly used significance levels are 0.05 (5%) and 0.01 (1%).

4. Calculate the test statistic:
  - The test statistic is a numerical value that summarizes the evidence against the null hypothesis. The specific test statistic depends on the type of hypothesis test being conducted. For example, if you're testing the difference between two population means, you might use the t-test or z-test.

5. Calculate the p-value:
  - The p-value is the probability of obtaining a test statistic as extreme as the one observed, assuming that the null hypothesis is true. It measures the strength of the evidence against the null hypothesis. A small p-value suggests strong evidence against the null hypothesis, while a large p-value suggests weak evidence.

6. Make a decision:
  - Compare the p-value to the significance level (α) you chose in step 3. If the p-value is less than or equal to α, reject the null hypothesis. If the p-value is greater than α, fail to reject the null hypothesis.

Remember that failing to reject the null hypothesis doesn't necessarily prove it to be true. It simply means that there is not enough evidence to support the alternative hypothesis.

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Answer:

5 cm hope this helps

Step-by-step explanation:

pls mark me brainiest

Answer:

5 cm

Hope this helps you don't need to mark me brainiest :)

The estimate value of the standard deviation of the population ( manufacturing process) is 0.125..

The standard deviations is estimated to be one fourth of the sample range (as most of data values are within two standard deviations of the mean).

We have given that,

A sample of manufacturing process.

Sample size, n = 5

Mean of sample ranges = 0.50

we have to calculate the estimate of standard deviations of population.

thus , we estimate the standard deviations as fourth of the mean of the sample ranges is

S = Mean of sample ranges/4

=> S = 0.50/4

=> S = 0.125

Hence, the standard deviation of the population is estimated as 0.125..

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EXPLANATION:

We are given the following details for a triangular prism;

Note that for the rectangular base, one side is 3 times the other. Hence, if the width is w, then the length would be 3 times w.

The surface area of a rectangular prism is;

With the side lengths given we can now substitute and we'll have;

Divide both sides by 2;

We shall now move all terms to one side of the equation;

We can now solve this quadratic equationwith the quadratic equation formula;

Where the variables are;

We now have two solutions. We shall take the positive one since our side lengths cannot be a negative value.

Therefore having the width as 3, the length which is 3 times the width is 3 times 3 and that gives 9.

Therefore;

ANSWER:

The solid line has length and makes an angle with the negative y-axis, the length of the dashed line is l × cos(α).

Given, the solid line has length l and makes an angle α with the negative y-axis. By using trigonometry, we can determine the length of the dashed line using l and α. From the figure, we can see that: cos(α) = length of the adjacent side / length of the hypotenuse cos(α) = length of the dashed line / length of the solid line

Therefore, length of the dashed line = length of the solid line × cos(α)

Substituting the given values, length of the dashed line = l × cos(α)

Therefore, the length of the dashed line is l × cos(α).

The length of the dashed line is l × cos(α).

By using trigonometry, we can determine the length of the dashed line using l and α. From the figure, we can see that: cos(α) = length of the adjacent side / length of the hypotenuse cos(α) = length of the dashed line / length of the solid line. Therefore, length of the dashed line = length of the solid line × cos(α)Substituting the given values, length of the dashed line = l × cos(α).

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The line integral of $2x^2 \mathrm{~d}y$ along the curve $C$ is equal to 486 according to the given information.

To calculate the line integral $\int_C 2x^2 \mathrm{~d}y$, we need to parameterize the curve $C$ and express $x$ and $y$ in terms of the parameter $t$. The given curve is defined as $\mathbf{r}(t) = \langle 3t-3, 3t \rangle$, where $0 \leq t \leq 4$.

Differentiating $\mathbf{r}(t)$ with respect to $t$, we have $\mathbf{r}'(t) = \langle 3, 3 \rangle$. Integrating $2x^2$ with respect to $y$ along the curve $C$ gives us:

$\int_C 2x^2 \mathrm{~d}y = \int_0^4 2(3t-3)^2 (3 \mathrm{~d}t) = 2 \int_0^4 (27t^2 - 54t + 27) \mathrm{~d}t$.

Evaluating the integral, we get $\int_C 2x^2 \mathrm{~d}y = [9t^3 - 27t^2 + 27t]_0^4 = 486$.

Therefore, the line integral $\int_C 2x^2 \mathrm{~d}y$ along the curve $C$ is equal to 486.

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The polar curve r = -2 sin θ can be graphed by first plotting the graph of r as a function of θ in Cartesian coordinates. To do this, we can set r = y and θ = x, and then plot the resulting equation y = -2 sin x.

This graph will have the shape of a sinusoidal wave with peaks at y = 2 and troughs at y = -2.
To sketch the same polar curve in Cartesian form, we can use the conversion equations x = r cos θ and y = r sin θ. Substituting in the given polar equation, we get x = -2 sin θ cos θ and y = -2 sin² θ. Simplifying these equations, we get x = -sin 2θ and y = -2/3 (1-cos² θ). This graph will have the shape of a four-petal rose.
The graphs from Part (a) and Part (b) are different because they represent different equations. Part (a) is the graph of y = -2 sin x, which is a sinusoidal wave. Part (b) is the graph of a four-petal rose. However, both graphs share some similarities in terms of their shape and symmetry. They are both symmetrical about the origin and have a repeating pattern.
In conclusion, we can sketch a polar curve by first graphing r as a function of θ in Cartesian coordinates and then converting it to Cartesian form. The resulting graphs may look different, but they often share similar patterns and symmetries.

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For part (a), we should use two-sample, For part (b), we should use paired and For part (c), we should use paired t procedures.

For part (a), we should use two-sample t procedures because the samples are independent (each car is randomly assigned either Brand A or Brand B tires). We want to test if there is a significant difference in wear characteristics between the two tire brands, which involves comparing the means of the two groups.

For part (b), we should use paired t procedures because the data is paired (each worker is observed both with and without music). We want to test if there is a significant difference in productivity when workers listen to music, which involves comparing the mean productivity scores of each worker with and without music.

For part (c), we should use paired t procedures because the data is paired (each couple is interviewed separately but asked about the same adolescent relationship). We want to test if there is a significant difference between men and women in how much the attractiveness of their adolescent partner mattered, which involves comparing the mean attractiveness scores reported by men and women for the same relationship.

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To know which girl ate the most, we have to compare the two fractions.

To be able to compare the fractions, we can:

1.- We convert to decimal numbers.

2.- We modify the fractions such that both fractions have the same denominator.

To compare the fraction we will change them in a way that both have the same denominator.

Recall that a fraction represents the same number if we multiply it and divide it by the same number.

Notice that:

Since both fractions are the same, we can conclude that both girls ate the same amount.

Answer: 3/6 is equal to 4/8.

Both girls ate the same amount

Answer: Bertha nació el 18 de septiembre de 1990.

Step-by-step explanation:

Gonzalo nació el 18 de septiembre de 1945.

Bertha nació cuatro décadas y un lustro después.

Una década son 10 años

Un lustro son 5 años

Entonces 4 décadas y un lustro son:

4*10 años + 5 años = 45 años

Esto significa que Bertha nació 45 años después que Gonzalo.

Entonces si Gonzalo nació en 1945, Bertha nació en el año:

1945 + 45 = 1990

Bertha nació el 18 de septiembre de 1990.

La fecha de nacimiento de Bertha es el 18 de septiembre de 1990.

A decade is composed of 10 years. So, if there are 'x' decades, then that means there are going to be \(10 \times x\) years in it.

For this case, we are given that:
Date of birth of Gonzelo is 18th of Sept. 1945

Bertha born after 4 decades and 5 years of Gonzelo's birth.

4 decades = 4 times 10 = 40 years

Thus, 4 decades + 5 years = 40 + 5 = 45 years.

45 years after 1945 uis 1945 + 45 = 1990

Thus, date of birth of Bertha is 18th Sept. 1990

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Answer:

2.66666667

Step-by-step explanation:

Answer:

I'm pretty sure it's 2

Step-by-step explanation:

Answer:

First of all you need to put 6 in each functions

thus we would have:

g(6)= 12

f(6)= 27

and then 12×27 would be the answer

Answer:

135

Step-by-step explanation:

g(6) =2×6 =12

(fg)(6) is f(g(6))= f(12)= 12²-9 =144-9 =135

Answer:

20 degrees

Step-by-step explanation:

First, draw the triangle and label the sides and angles. (See the picture attached)

The red lines on sides FG and HF indicate that the sides are congruent since this is an isosceles triangle. Isosceles triangles have two congruent sides and angles.

All angles add up to 180 degrees. You were already given 140 for angle F. So, use to find angle h, subtract 140 from 180 and divide by 2.

180 - 140 = 40

40 / 2 = 20

Angle h is 20 degrees

Answer:

20 degrees

Step-by-step explanation:

The equal sign with a tilde signifies that line segment FG and segment HF are congruent. If two sides of a triangle are congruent, then the triangle is an isosceles triangle. It then provides the top angle at F where the two congruent sides meet, which is 140 degrees. In an isosceles triangle, the angles between one congruent side and a non-congruent side are equivalent angle measures, meaning that to find the measure of angle H, you simply have to subtract 140 from 180 then divide that quantity by 2 for the measure of one of the two congruent angles, in this case equaling 20 degrees.

Answer:

slope of the line is 2

Step-by-step explanation:

formula:

slope=m=(y2-y1)/(x2-x1)

plug the values in:

m=(9-3)/(2-(-1))

simplify:

m=6/3

divide:

m=2

The cost of the tiles needed to frame the mural would be $19.20.

Mural dimensions: 4 feet by 12 feet

Tile dimensions: 2 inches on each edge

Cost per tile: $0.10

1. Convert the mural dimensions to inches:

Mural width = 4 feet × 12 inches/foot = 48 inches

Mural height = 12 feet × 12 inches/foot = 144 inches

2. Calculate the perimeter of the mural in inches:

Mural perimeter = 2 × (Mural width + Mural height) = 2 × (48 inches + 144 inches) = 384 inches

3. Determine the number of tiles required:

Number of tiles = Mural perimeter / Tile length = 384 inches / 2 inches = 192 tiles

4. Calculate the cost:

Cost of tiles = Number of tiles × Cost per tile = 192 tiles × $0.10 = $19.20

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The complete question is:

To frame the mural of your school mascot, which measures 4 feet by 12 feet, with a single row of square tiles, each having a 2-inch edge, the cost of the tiles required can be determined. Given that each tile costs $0.10, we need to calculate the total cost in dollars.

The value of y by substitution method is equal to -8.

The algebraic method for solving simultaneous linear equations is the substitution method. The value of one variable from one equation is substituted in the other equation, as the name implies.

Given that the two equations are, x = 6 and -4x - y = -16. The value of y by substitution method is calculated as,

x = 6

-4x - y = -16

( -4 x 6 ) - y = -16

-24 - y = -16

y = -24 + 16

y = -8

By using the substitution method the value of y is -8.

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Box 1 = 8

Box 2 = 2

If he earned $64 in 8 hours then dividing by 64 by 8 will tell us how much he earned in 1 hour. That gives $8

Using that we can then divide the number of dollars by the amount he receives in 1 hour to see how many hours it was.

So $16 / $8 per hour gives 2 hours

The probability that all coins show heads up is 1/16.

The probability of one is 1/2: Half of the time (on average, as all numbers in this answer will be) it will show heads.

Of those times it shows heads, only half of the time will the second coin also show heads. We're down to a quarter of the time now.

Of those times the second coin shows heads, only half of the time will the third coin also show heads. This is 1/8.

And, of the times the third coin also shows heads, only half of the time will the fourth coin also show heads. Half of 1/8 is 1/16.

You can simplify this by calculating (1/2)^4.

= 1/16

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Take all coins that are still on tails and keep flipping them until they land on heads. We flip 4 coins simultaneously. What is the probability that all coins show heads up?

Answer:

Second option) 7.5

Step-by-step explanation:

We can set up a ratio to solve:

\(\frac{top}{side}>\frac{8}{10} =\frac{6}{z}\)

Cross multiply:

8z = 60

Divide both sides by 8:

7.5

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather