Which are are solutions for x^2 + 5x – 1 > 6

Answer:

maria compro 25665 lapiceros de color azul para repartirlos ...brainly.lat › Matemáticas › Secundaria

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Aug 16, 2016 — maria compro 25665 lapiceros de color azul para repartirlos entre sus 124 amigos y ella ¿cuantos lapiceros le toco a cada uno? 1.

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Nov 29, 2018 — Si María compró 25665 lapiceros de color azul para repartirlos entre sus 124 amigos y ella ¿Cuántos lapiceros le tocó a cada uno?¿Cuántos lapiceros sobraron? 2. Ver respuestas. Inicia sesión para comentar ...

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maría compro 25,665 lapiceros de color azul para repartirlos ...brainly.lat › ... › Universidad

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May 29, 2020 — maría compro 25,665 lapiceros de color azul para repartirlos entre sus 124 amigos y ella ¿cuántos lapiceros le tocó a cada uno?¿cuántos lapiceros sobraron? 2. Ver respuestas. Inicia sesión para comentar ...

Step-by-step explanation:

Answer:

i think .... 88 pencils

Step-by-step explanation:

$1.25 = 5 pencils

1 pencil = $1.25/5 = $0.25/pencil

pencils you could buy for $22 :

$22/$0.25 = 88 pencils

hope it helps <3

Answer:

Sunshine has $19 left after spending $10.

Step-by-step explanation:

29 - 10 = x

Subract 10 from 29 to solve for x.

x = 19

Answer:

471.24 yd²

Step-by-step explanation:

The formula for the surface area of the cylinder

= 2πr(r + h)

Height = 10 yd

Radius = 5 yd

Surface area =

2 × π × 5(5 + 10)

= 471.24 yd²

The surface area of the cylinder = 471.24 yd²

Answer:

3V/l divide h

Step-by-step explanation:

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

V = 1/3 lwh

The value of w is 3V/lh

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example:

2 + 3x + 4y = 7 is an expression.

3x + 5 = 4 is an expression.

We have,

V = 1/3 lwh

Multiply 3 on both sides.

3V = lwh

Divide both sides by lh.

3V / lh = w

w = 3V/lh

Thus,

V = 1/3 lwh

The value of w is 3V/lh

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Answer:

90 counterclockwise

Step-by-step explanation:

-2 as x would mean it is in the top left quadrant and going back from a clock would be that one

Answer:

what the other guy said 90 counterclockwise

Step-by-step explanation:

Answer:

(x+4)²-3

Step-by-step explanation:

x x=x²

4 4 =8

then +3

but a plus and a minus makes a minus so it would be -3

The value of people in this proportion is equal to 165/10 or 10.67.

In Mathematics, a proportion can be defined as an equation which is typically used to represent (indicate) the equality of two ratios. This ultimately implies that, proportions can be used to establish that two ratios are equivalent and solve for all unknown quantities.

By applying direct proportion to the given information, we have the following mathematical expression:

3/10/p = 4/5/1/4

3/10 × p = 4/5 × 4

3p/10 = 16/5

Cross-multiplying, we have the following:

15p = 160

People, p = 160/15

People, p = 10.67

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Answer:

Condition:

If a series converges, then the terms of the series approach 0.

Converse:

If the terms of a series approach 0, then the series converges.

Answer:

\(a^{5}\)

Step-by-step explanation:

The probability that fewer than five of the 11 randomly selected adult smartphone users will use their phones during meetings or classes is 0.6747

When adults with smartphones are randomly selected, 53% use them during meetings or classes. You need to find the probability that fewer than five of the 11 selected adults use their smartphones during meetings or classes. Here's how to calculate the probability that fewer than five of the 11 randomly selected adult smartphone users will use their phones during meetings or classes:

\(P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)\)

Where X represents the number of smartphone users in the selected group who use their phones in meetings or classes. Using the binomial probability formula, you can calculate each of these probabilities separately.

\(P(X = 0) = (11C0)(0.53)^0(1 - 0.53)^11 = 0.0026\\P(X = 1) = (11C1)( 0.53)^1(1 - 0.53)^10 = 0.0247\\P(X = 2) = (11C2)(0.53)^2(1 - 0.53)^9 = 0.1012\\P(X = 3) = (11C3)(0.53) ^3(1 - 0.53)^8 = 0.2346\\P(X = 4) = (11C4)(0.53)^4(1 - 0.53)^7 = 0.3116\\\)

Therefore, the probability that fewer than five of the 11 randomly selected adult smartphone users will use their phones during meetings or classes is:

\(P(X < 5) = 0.0026 + 0.0247 + 0.1012 + 0.2346 + 0.3116 = 0.6747\)

Therefore, the probability is 0.6747.

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Answer: 2/3 or 1/3

Step-by-step explanation: If we have a cake that has a total of 12 pieces, and we gave four to someone else we would have 8/12 pieces left. Now if we simplify then we would have 2/3 left.

Alternate explanation: Now if we just want to divide 4/12 then we would have 1/3.

I'm happy to help let me know if I'm wrong!

The Normal distribution is symmetric and ranges from negative to positive infinity, while the Log-normal distribution is skewed and only takes positive values. To select the better fit for data, consider characteristics (positivity and skewness favor Log-normal, symmetry favors Normal), hypothesis testing, visualization, and statistical tests.

Let's analyze each section separately:
a) The major differences between the Normal and Log-normal distributions are:

Normal Distribution: The Normal distribution, also known as the Gaussian distribution, is a symmetric probability distribution that is defined by its mean (μ) and standard deviation (σ). It follows a bell-shaped curve and is often used to model naturally occurring phenomena. The range of values extends from negative infinity to positive infinity.

Log-normal Distribution: The Log-normal distribution is a skewed probability distribution that arises when the logarithm of a random variable follows a normal distribution. It is characterized by its parameters mu (μ) and sigma (σ) of the underlying normal distribution. Unlike the Normal distribution, the Log-normal distribution only takes positive values.

b) Selecting which distribution fits the data better depends on the nature of the data and the research question at hand. Here are a few considerations:

1. Data Characteristics: If the data consists of positive values and the distribution appears to be skewed, the Log-normal distribution might be more appropriate. On the other hand, if the data is symmetric and unbounded, the Normal distribution may be a better fit.

2. Hypothesis Testing: If you have a specific hypothesis to test or a theoretical justification for choosing one distribution over the other, it is advisable to use that distribution.

3. Visualization: Plotting the data and comparing it to the shapes of the Normal and Log-normal distributions can provide visual insights into which distribution aligns better with the data.

4. Statistical Tests: Statistical tests such as the Kolmogorov-Smirnov test or the Anderson-Darling test can be used to assess the goodness-of-fit for each distribution and determine which one provides a better fit to the data.

In summary, selecting the appropriate distribution involves considering the characteristics of the data, the research question, and statistical tests. Visualization and hypothesis testing can further aid in determining the best fit distribution.

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The equation of the horizontal asymptote is:

y = 300

To find the equation of the horizontal asymptote for the function P(t), we need to analyze the behavior of the function as t approaches infinity. The horizontal asymptote represents the value that the function approaches as t becomes very large.

The given function is P(t) = 300 + (45t / (1 + 0.05t))

As t approaches infinity, the term (45t / (1 + 0.05t)) will become negligible compared to the constant term 300. This is because the denominator grows faster than the numerator, making the fraction approach zero. Therefore, the equation of the horizontal asymptote is:

y = 300

In the context of this problem, the horizontal asymptote represents the long-term equilibrium population of the fish in the lake. As time goes on, the fish population will approach and stabilize around 300. The asymptote indicates that there is a natural limit to the population growth, and the lake will reach a point of balance where the birth rate and death rate of the fish even out.

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Using the hsd test qcrit = 3.65  

HSD testis used to check differences among sample way for significance. The Tukey's HSD assessments all pairwise variations at the same time as controlling the probability of making one or greater type I errors.

A Tukey-Kramer test lets us check the null speculation of no distinction between the population approach for all pairs of businesses. The Tukey-Kramer check (also known as a Tukey sincere importance test, or Tukey HSD), is carried out in R inside the function.

solution

given;

   using HSD test, the degree of freedom = 16

                                                         and α=0. 05

                                                         groups = 3

                         Hence,                    Qcrit = 3.65    {using HSD table}

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Answer:

i dont know sorry

Step-by-step explanation:

i  dont understand i just watch anime all day

Answer:

Free points? idek sorry.

Step-by-step explanation:

Answer:

y = -2 and x = 4

Step-by-step explanation:

8x + 14y = 4

-6x - 7y = -10

First, find the lowest common multiple of 8 and 6 (which is 24). Multiply the first equation by 3:

8x + 14y = 4

3(8x + 14y) = 3(4)

24x + 42y = 12

Multiply the second equation by 4:

-6x - 7y = -10

4(-6x - 7y) = 4(-10)

-24x - 28y = -40

Now, add the two equations together:

24x + 42y = 12

-24x - 28y = -40

24x + -24x = 0

42y + -28y = 14y

12 + -40 = -28

14y = -28

Divide both sides by 14:

14y ÷ 14 = -28 ÷ 14

y = -2

Plug this known variable back into the first equation:

8x + 14(-2) = 4

8x + (-28) = 4

8x - 28 = 4

Add 28 to both sides:

8x - 28 + 28 = 4 + 28

8x = 32

Divide both sides by 8:

8x ÷ 8 = 32 ÷ 8

x = 4

So y = -2 and x = 4.

Hope this helps!

Answer:

false

Step-by-step explanation:

To estimate the regression in the given model Yi = B0 + B1Xi + B2Ziui, where the variance of Ui is Σi^2 = Σ(zi^2), you can use the method of weighted least squares (WLS). The weights for each observation can be determined by the inverse of the variance of Ui, that is, wi = 1/zi^2.

In the given model, Yi = B0 + B1Xi + B2Ziui, the error term Ui is assumed to have a constant variance, given by Σi^2 = Σ(zi^2), where zi represents the individual values of Z.

To estimate the regression coefficients B0, B1, and B2, you can use the weighted least squares (WLS) method. WLS is an extension of the ordinary least squares (OLS) method that accounts for heteroscedasticity in the error term.

In WLS, you assign weights to each observation based on the inverse of its variance. In this case, the weight for each observation i would be wi = 1/zi^2, where zi^2 represents the variance of Ui for that particular observation.

By assigning higher weights to observations with smaller variance, WLS gives more importance to those observations that are more precise and have smaller errors. This weighting scheme helps in obtaining more efficient and unbiased estimates of the regression coefficients.

Once you have calculated the weights for each observation, you can use the WLS method to estimate the regression coefficients B0, B1, and B2 by minimizing the weighted sum of squared residuals. This involves finding the values of B0, B1, and B2 that minimize the expression Σ[wi * (Yi - B0 - B1Xi - B2Ziui)^2].

By using the weights derived from the inverse of the variance of Ui, WLS allows you to estimate the regression in the presence of heteroscedasticity, leading to more accurate and robust results.

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The value of x is 8 when the angles are created by two intersecting lines.

According to the question,

We have the following information:

We have a figure where two lines are intersecting and the angles made are 27 and (3x+3).

We know that vertically opposite angles are equal and when two lines intersect at a point then the angles made are vertically opposite angles.

So, we have the following expression:

3x+3 = 27

3x = 27-3

3x = 24

x = 24/3

x = 8

Hence, the value of x is 8 when the angles are created by two intersecting lines.

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The genre which had the same number of votes in each study is: B. horror.

See the attached charts.

From the bar chart, the number of votes for horror movie is equal to 40 votes. Next, we would calculate the number of votes for horror movie in the pie chart as follows;

Number of votes = 16/100 × 250

Number of votes = 0.16 × 250

Number of votes = 40 votes.

Finally, we may infer rationally that horror is a film genre that receives the same amount of votes in each independent research.

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Answer: -3

Step-by-step explanation:

-3^2=-3*-3=-9

Because the square of q is equal to -9, the square root of -9 is equal to q.

Because of this fact, we can find the square root of -9 to get our answer.

\(\sqrt{-9}\) = 3 i.

Therefore, q is equal to 3 i or \(\sqrt{-9}\).

Hope this helped! :)

Answer:

-3 is the y coordinate

2 is the x coordinate

Step-by-step explanation:

-9*1/3=-3

6*1/3=2

Hope this helps :)

Answer:

(2, - 1 )

Step-by-step explanation:

Assuming the centre of dilatation is at the centre then multiply each of the coordinates of D by \(\frac{1}{3}\)

D(6, - 3 ) → D'( \(\frac{1}{3}\) (6), \(\frac{1}{3}\) (- 3 ) ) → D'( 2, - 1 )

The correct answer is Using numerical integration techniques:Approximation using the Trapezoidal Rule (t10) is approximately [2.763211].Approximation using the Midpoint Rule (m10) is approximately [2.079728].Approximation using Simpson's Rule (s10) is approximately [2.094395].

To approximate the values of t10, m10, and s10 for the integral 0 to 8 sin(x) dx, we can use numerical integration techniques, such as the Trapezoidal Rule, Midpoint Rule, and Simpson's Rule.

Trapezoidal Rule (t10):

The Trapezoidal Rule estimates the integral by approximating the area under the curve using trapezoids. The formula for the Trapezoidal Rule is given by:

t10 = (b - a) * [(f(a) + f(b)) / 2 + ∑(f(xi))] / n

where a and b are the limits of integration (0 and 8 in this case), f(x) is the function (sin(x) in this case), xi are the equally spaced points between a and b, and n is the number of intervals.

Using n = 10, we can calculate t10:

t10 ≈ (8 - 0) * [(sin(0) + sin(8)) / 2 + ∑(sin(xi))] / 10

Midpoint Rule (m10):

The Midpoint Rule estimates the integral by approximating the area under the curve using rectangles. The formula for the Midpoint Rule is given by:

m10 = (b - a) * ∑(f(xi + h/2)) / n

where a, b, f(x), xi, and n have the same meanings as in the TrapezoidalRule, and h is the width of each interval (h = (b - a) / n).

Using n = 10, we can calculate m10:

m10 ≈ (8 - 0) * ∑(sin(xi + (8 - 0) / (2 * 10))) / 10

Simpson's Rule (s10):

Simpson's Rule estimates the integral by approximating the area using parabolic arcs. The formula for Simpson's Rule is given by:

s10 = (b - a) * [f(a) + 4 * ∑(f(xi)) + 2 * ∑(f(x2i)) + f(b)] / (3 * n)

where a, b, f(x), xi, and n have the same meanings as in the Trapezoidal Rule, and x2i represents the points with an even index.

Using n = 10, we can calculate s10:

s10 ≈ (8 - 0) * [sin(0) + 4 * ∑(sin(xi)) + 2 * ∑(sin(x2i)) + sin(8)] / (3 * 10)

By evaluating these formulas using numerical methods and rounding the results to six decimal places, you can find the approximations t10, m10, and s10 for the given integral 0 to 8 sin(x) dx.

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Answer:

x × x +2x-35=0

x²+2x-35=0

(x+7)(x – 5)=0

x+7=0 —> x= – 7

x – 5=0 —> x = 5

I hope I helped you^_^

Answer:

6n - 14

Step-by-step explanation:

Given;

g(n) = 3n+1 and f(n) = 2n-5

We are to find (gof)(n)

(gof)(n) = g(f(n))

g(f(n)) = g(2n-5)

Replace n with 2n-5 in g(n)

g(2n-5) = 3(2n-5) + 1

g(2n-5) = 6n - 15 + 1

g(2n-5) = 6n - 14

Hence (gof)(n) is 6n - 14

To solve the given system, we have to graph each equation.

Let's find the points when x = 1, x = 2.

The points for the first line are (1, -2) and (2, -4). Now, let's plot these points and draw the line

Now, let's repeat the process for the second equation.

For x = 0, and x = 1, we have

The points are (0, 5) and (1, 8). Let's graph the second line

As you can observe in the image above, the lines intersect at (-1, 2).