Ayuda por favor en la actividad 3 , Funciones, Matemáticas

Answer:

C

Step-by-step explanation:

93/35= 2.657

100/2.657= 37.636

round up

Answer:2.77*10^-8

Step-by-step explanation:

8.89*10^-7/32.0

The capacitance of the capacitor is approximately 2.78 x 10⁻⁹ Farads (F).

The capacitance of a capacitor can be calculated using the formula:

C = Q / V

Where C represents the capacitance, Q represents the charge stored in the capacitor, and V represents the voltage applied to the capacitor.

In this case, we are given that the charge stored in the capacitor is 8.89 x 10⁻⁷ C and the voltage applied is 32.0 V. Plugging these values into the formula, we get:

C = (8.89 x 10⁻⁷ C) / (32.0 V)

Simplifying the expression, we find:

C ≈ 2.78 x 10⁻⁹ F

The Farad is the SI unit of capacitance, representing the ability of a capacitor to store charge per unit voltage.

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Answer:

78.5°

Step-by-step explanation:

We solve for the above question, using the formula for the Trigonometric function of Cosine

cos θ = Adjacent/Hypotenuse

Adjacent = The distance between the house and the base of the ladder = 4 feet

Hypotenuse = Length of the Ladder = 20 feet

Hence,

cos θ = 4/20

θ = arc cos(4/20)

θ = 78.463040967°

Approximately = 78.5°

Therefore, the angle that the ladder makes with the ground is 78.5°

We can make 4 servings of chicken noodle soup using 20 oz of egg noodles.

To determine how many servings of chicken noodle soup can be made from 20 oz of egg noodles, we need to divide the total amount of noodles by the amount required for each serving.

Given that 5 oz of egg noodles are needed for one serving, we can divide 20 oz by 5 oz/serving to get the total number of servings.

20 oz ÷ 5 oz/serving = 4 servings

The serving size may vary depending on the recipe and the individual's appetite, so this calculation is an estimate. Other ingredients such as chicken, vegetables, and broth will also affect the overall serving size and number of servings.

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Answer:

The variable expression equation of the situation is;

x + 5 + x + 3·x - 7 = $73

The amount of money Jadah collects = $15

The amount of money Martez collects = $20

The amount of money Roana collects = $38

Step-by-step explanation:

The given parameters are;

The total amount of money they collect together = $73

The amount of money Martez collects = 5 + The amount of money Jadah collects

The amount of money Roana collects = 3 × The amount of money Jadah collects - 7

Let x represent the amount of money Jadah collects

Therefore, we have;

The amount of money Martez collects = 5 + x

The amount of money Roana collects = 3 × x - 7

The variable expression equation of the situation is given as follows;

The total amount of money the three collected = x + 5 + x + 3 × x - 7 = $73

∴ 5 × x - 2 = $73

5 × x - 2 = 73

5 × x  = 73 + 2 = 75

x = 75/5 = 15

x = 15

The amount of money Jadah collects = x = $15

The amount of money Martez collects = 5 + x = 5 + 15 = 20

The amount of money Martez collects = $20

The amount of money Roana collects = 3 × x - 7 = 3 × 15 - 7 = 38

The amount of money Roana collects = $38

Answer:

Step-by-step explanation:

A number less than 3 is 2 or 1 which is 2/6 of the time

A coin can land on either side with a probability of 1/2

P(h and <3) = 1/2 * 2/6 = 1/6

This is exactly what you got.

The probability that, out of a random sample of 10 internet users, 6 are concerned about the privacy of their e-mail can be calculated using the binomial probability formula.

The binomial probability formula allows us to calculate the probability of a specific number of successes (concerned internet users) in a given number of trials (random sample of 10 internet users), given the probability of success in a single trial (95% or 0.95 in this case).

Using the binomial probability formula, we can calculate the probability as follows:

\(P(X = 6) = C(n, x) * p^x * (1 - p)^(n - x)\)

P(X = 6) is the probability of exactly 6 internet users being concerned about privacy,

n is the total number of trials (10 in this case),

x is the number of successful trials (6 in this case),

p is the probability of success in a single trial (0.95 in this case), and

C(n, x) is the number of combinations of n items taken x at a time.

Plugging in the values, we have:

\(P(X = 6) = C(10, 6) * 0.95^6 * (1 - 0.95)^(10 - 6)\)

Calculating this expression will give us the probability that exactly 6 out of the 10 internet users in the random sample are concerned about the privacy of their e-mail.

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Answer:

9/10 or 0.9

Step-by-step explanation:

Slope of a line passing through two points (x1, y1) and (x2, y2) is given by
Slope m = rise/run

where
rise = y2 - y1
run = x2 - x1

Given points (- 6, - 5) and (4, 4),

rise = 4 - (-5) = 4 + 5 = 9

run = 4 - ( - 6) = 4 + 6 = 10

Slope = rise/run = 9/10 or 0.9

Answer:

0.16/8.5

Step-by-step explanation:

so to get the slope use (Y2-Y1) over (X2-X1)

this means that the formula is

1/2-1/3

---------

25.5- 17

Answer:

20.98in

Step-by-step explanation:

that is the answer

Answer:b 6

Step-by-step explanation:

it just is

A statistically significant negative correlation coefficient of r = -0.91 was obtained from a sample of n = 30. This indicates a strong and significant negative relationship between the variables.

The researcher conducted a correlation analysis and found a correlation coefficient (r) of -0.91, which indicates a strong negative relationship between the variables under investigation. The negative sign indicates that as one variable increases, the other variable tends to decrease, and vice versa.

The statistical significance of the correlation coefficient is crucial in determining whether the observed relationship is likely to be due to chance or if it truly exists in the population. In this case, the report should highlight that the obtained correlation coefficient is statistically significant.

To establish statistical significance, the researcher likely conducted a hypothesis test, such as a t-test or a permutation test, to determine the probability of obtaining a correlation coefficient as extreme as -0.91 under the null hypothesis of no correlation. Since the obtained correlation coefficient is statistically significant, it suggests that the observed negative relationship is unlikely to be a result of chance and provides evidence for a genuine association between the variables in the population from which the sample was drawn.

Reporting this finding is important for conveying the strength and significance of the negative relationship to the readers, providing valuable insights for further analysis and interpretation of the variables under investigation.

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Answer:

Flour & Salt

Step-by-step explanation:

Answer: m = 5/2

Step-by-step explanation:

The sample autocorrelation function is ρ(k) = (1/n) ∑(t=k+1)ⁿ 3(t - 1) (3t-k)

To compute the sample autocorrelation function for our time series, we can use the following formula:

ρ(k) = (1/n) ∑(t=k+1)ⁿ (3t - 3) (3t-k - 3)

where ρ(k) represents the autocorrelation at lag k, n represents the number of observations (which in our case is 100), 3 represents the sample mean of the time series, and the summation is taken over all t=k+1 to n.

Then the function is written as,

=> ρ(k) = (1/n) ∑(t=k+1)ⁿ 3(t - 1) (3t-k)

Once we have computed the sample autocorrelation function, we can plot it to visualize the pattern of correlation between the time series and its lagged values.

The plot will have lag on the x-axis and autocorrelation on the y-axis. The plot will help us identify any significant correlations that exist between the time series and its lagged values.

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Answer:Therefore, the range is 32 and the standard deviation is approximately 10.523 for the given data set.

Step-by-step explanation:To calculate the range and standard deviation for the given data set {40, 65, 33, 46, 55, 50, 61}, we can follow these steps:

Step 1: Find the range.

The range is calculated by subtracting the minimum value from the maximum value in the data set.

Range = Maximum value - Minimum value

Range = 65 - 33

Range = 32

Step 2: Calculate the mean.

The mean is calculated by summing up all the values in the data set and dividing by the total number of values.

Mean = (40 + 65 + 33 + 46 + 55 + 50 + 61) / 7

Mean = 350 / 7

Mean = 50

Step 3: Calculate the deviation for each value.

Deviation is calculated by subtracting the mean from each value in the data set.

Deviation for 40 = 40 - 50 = -10

Deviation for 65 = 65 - 50 = 15

Deviation for 33 = 33 - 50 = -17

Deviation for 46 = 46 - 50 = -4

Deviation for 55 = 55 - 50 = 5

Deviation for 50 = 50 - 50 = 0

Deviation for 61 = 61 - 50 = 11

Step 4: Square each deviation.

Squared deviation for -10 = (-10)^2 = 100

Squared deviation for 15 = 15^2 = 225

Squared deviation for -17 = (-17)^2 = 289

Squared deviation for -4 = (-4)^2 = 16

Squared deviation for 5 = 5^2 = 25

Squared deviation for 0 = 0^2 = 0

Squared deviation for 11 = 11^2 = 121

Step 5: Calculate the variance.

Variance is calculated by summing up all the squared deviations and dividing by the total number of values.

Variance = (100 + 225 + 289 + 16 + 25 + 0 + 121) / 7

Variance = 776 / 7

Variance ≈ 110.857

Step 6: Calculate the standard deviation.

The standard deviation is the square root of the variance.

Standard Deviation ≈ √110.857

Standard Deviation ≈ 10.523

The price of one candy box was $2.50 if the popcorn were of $3.20 and the total amount was $18.20.

The price of one candy box can be determined using an algebraic expression. An algebraic expression can be defined as one that consists of both numbers and letters.

As he ordered 6 boxes of candy and a bucket of popcorn and the popcorn was of $3.20 and the total was $18.20, an algebraic expression can be given as;

6(x) + 3.20 = 18.20

Here x is the price of one candy box

Solving for x;

6x = 18.20 - 3.20

6x = 15

x = 15 / 6

x = 2.50

Hence the price of one candy box is calculated to be $2.50.

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Answer:

First term a₁ = 3/2 and common ratio r = 2

Step-by-step explanation:

We need to find the first term and common ratio while we are given third term = 6 and seventh term = 96

Since common ratio is required so, the sequence is geometric sequence

The formula used is: \(a_n= a_1r^{n-1}\)

We are given: third term = 6 i,e

\(a_3=a_1r(3-1)\\6=a_1r^2----eq(1)\)

Seventh term = 96

\(a_7=a_1r(7-1)\\96=a_1r^6----eq(2)\)

Dividing eq(2) and eq(3)

\(\frac{96}{6}=\frac{a_1r^6}{a1r2}\\16=\frac{r^6}{r^2}\\16=r^{6-2}\\=> r^4=16\\Taking \ fourth \ root\\ r=2,-2,2i,-2i\\ \ We \ will \ consider \ only \ positive \ value \ of \ r \ i.e \ \textbf{ r= 2}\)

So, Common Ratio r = 2

Finding First term using eq(1)

\(a_3=a_1r^2\\6=a_1(2)^2\\6=a_1(4)\\a_1= \frac{6}{4}\\a_1= \frac{3}{2}\)

So, First term a₁ = 3/2 and common ratio r = 2

Answer:

D. y-2=-3(x-2)

Step-by-step explanation:

If Ofra tried to solve an equation 3x = 4.5, The statement "Ofra correctly solved the equation" is correct. So, correct option is C.

We can see this by substituting x = 1.5 into the original equation 3x = 4.5:

3(1.5) = 4.5

Simplifying the left-hand side, we get:

4.5 = 4.5

This is a true statement, which means that x = 1.5 is a valid solution to the equation 3x = 4.5.

Therefore, Ofra did not make any mistakes in solving the equation. She correctly set up the equation 3x = 4.5 by multiplying both sides by 3 to isolate x, and then calculated the value of x to be 1.5, which is the correct solution.

Option (c) is the correct answer.

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Complete question is:

Ofra tried to solve an equation.

3x = 4.5, Setting up x = 1.5 Calculating

Where did Ofra make her first mistake?

Choose 1 answer:

a) Setting up

b)  Calculating

c) Ofra correctly solved the equation.

After four hours, the solution's temperature will be negative at 14.8 °C.

The result of the calculation that the mathematical model depicts is the expression's result when the necessary parameters and natural laws are given values.

Given Data

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To solve the equation properly and accurately, this rule is applied.

A chemist is monitoring the temperature of a solution during a four-hour period that begins at -12.4°C. The temperature increases by 5.7°C throughout the four hours and decreases by 8.1°C.

Afterward, the phrase will be

-12.4 + 5.7 - 8.1

If we condense the phrase, we have

-14.8°C

After four hours, the solution's temperature will be negative.

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This is an example of a sample survey or a sampling method.

Sampling techniques in a statistical study refer to how participants are chosen from the population to participate in the study. If a sample isn't chosen at random, it will likely be skewed in some way, and the results might not be generalizable.

In the given scenario, you are conducting a sample survey to determine the proportion of each color of Peanut Butter M&Ms. A sample survey is a method used to collect data from a subset of a larger population in order to make inferences about the entire population.

Instead of counting every single Peanut Butter M&M in existence, which would be impractical and time-consuming, you decide to take a smaller representative sample. You purchase 10 packages of Peanut Butter M&Ms, each weighing 1.69 ounces, and count the number of M&Ms of each color in those packages.

By analyzing the data collected from this sample, you can estimate the proportion of each color of Peanut Butter M&Ms in the larger population. This approach is more feasible and provides a reasonable approximation of the overall distribution of colors without having to examine every individual item.

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Elected values of the twice-differentiable functions f and g and their derivatives are provided the value of the limit is -22.

To find the limit of the expression lim(x→2) [x²f(x) - 16g(x) - 2], we need to substitute the given values of f(x) and g(x) into the expression and evaluate it at x = 2.

Using the table, let's substitute the values:

f(2) = 3, f'(2) = -4

g(2) = 2, g'(2) = 5

Now we can evaluate the limit:

lim(x→2) [x² f(x) - 16g(x) - 2] = lim(x→2) [(x² )(3) - 16(2) - 2]

Substituting x = 2:

= (2²)(3) - 16(2) - 2

= 12 - 32 - 2

= -22

Therefore, the value of the limit is -22.

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Answer:

Step-by-step explanation:

Volume = length x breadth x height

            = 4 x 6 x 10

            =  240 cubic feet  

yea once

they ain't friends no more

bc I stole one

and now there ain't 2 pretty best frens no more

True: When a form is created based on two or more tables, a relationship must be defined between queries.

True. When a form is created based on two or more tables, a relationship must be defined between queries in order to ensure that the form displays accurate data. Queries are used to pull data from multiple tables and present it in a single view, so it is important to define the relationships between these tables to avoid inconsistencies or errors in the displayed data. This ensures that the data from the related tables can be properly displayed and managed within the form.

When you drag and search a field from an "other" (unrelated) table, a new one-to-many relationship is created from the table in the list and the table from which you dragged the field. This relationship is established by Access, which does not enforce integrity by default.

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Answer:

Hey there!

We must use what we are given, so even though it looks like there might be four isosceles triangles, we are only given CA=CE, so that only allows us to conclude mathematically that there is only 1 isosceles triangle.

Hope this helps :)

Answer:

Step-by-step explanation:

I believe the answer is

C) Laura mixed more vinegar per cup of olive oil, because 3:1 is greater than 4:2

Per 1 cup, Laura has 3 tbsp of vinegar, but Juliette only has 2 tbsp per cup.

It wouldn't be D) because 3 tbsps aren't bigger than 2 cups....

The parent function f(x) = x² must be modified by a horizontal translation, a reflection, a dilation and a vertical rotation to obtain f(x) = - 3 · (x + 9)² + 4.

Herein we find a quadratic equation as the parent function and which must be modified by using a series of rigid transformations. Rigid transformations are transformations applied on function such that Euclidean distance is conserved. Then, the resulting expression is the consequence of the following sequence of rigid transformations:

Now we prove the sequence of rigid transformations:

Step 1 - Translation

f'(x) = (x + 9)²

Step 2 - Reflection

f''(x) = - (x + 9)²

Step 3 - Dilation

f'''(x) = - 3 · (x + 9)²

Step 4 - Translation

f''''(x) = - 3 · (x + 9)² + 4

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Sam' speed for the first 15 minute of her journey is 80km/hr.

Speed refers to the rate of change of an object’s position in any direction. It is measured as the ratio of distance to the time (period in which the distance was covered). It is a scalar quantity. The formula for speed is given by:

Speed = Distance/ Time

Based on the provided travel graph,

Distance d = 20 km

Time t = 15 min = 15/60 = 0.25 hr

Hence,

Speed = d/t = 20/0.25 = 80km/hr

The speed in the first 15 minutes of Sam’s journey is 80km/hr.

Note: The question is incomplete. The complete question is: Sam drives his car on a journey. The travel graph for the first 15 minutes of his journey. Work out Sam' speed for the first 15 minute of her journey. Give your answer in km/h.

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