-1 TIMES the ABSOLUTE VALUE of -24 =
will give brainliest !!!!!

Answer:

C. 10 = 2.5 + 0.5x

Step-by-step explanation:

A. 0.5x + 2.5 = 10

B. 0.5 – 2.5 = 10x

C. 10 = 2.5 + 0.5x

D. 2.5x + 0.5 = 10

E. 2.5x – 0.5 = 10

Total distance Hector covers = 10 km

Distance he has covered = 2.5 km

Distance he covers per week = 0.5 km

Let

x = number of weeks

The equation is given by

2.5 + 0.5x = 10

It can also be written as:

10 = 2.5 + 0.5x

10 - 2.5 = 0.5x

7.5 = 0.5x

x = 7.5/0.5

x = 15 weeks

Answer:

A and C

0.5x + 2.5 = 10

10 = 2.5 + 0.5x

Step-by-step explanation:

hope this helps!

Yes, when comparing more than 2 treatment means, it is generally recommended to use analysis of variance (ANOVA) instead of several t-tests.

ANOVA allows you to test the overall differences between groups while taking into account the variability within each group. This helps to reduce the likelihood of making a Type I error (false positive) compared to conducting multiple t-tests. By using ANOVA, you can determine if there is a significant difference among the means of the groups.

If the ANOVA indicates a significant difference, you can then perform post-hoc tests (e.g., Tukey's HSD or Bonferroni) to compare specific group means. Overall, ANOVA is a more efficient and statistically appropriate method when comparing multiple treatment means. Hope this explanation helps!

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The area of the triangle ABC is 6 square centimeters.

To find the area of the triangle, we can use Heron's formula, which is based on the lengths of the triangle's sides. Heron's formula states that the area (A) of a triangle with side lengths a, b, and c can be calculated using the following formula:

A = √(s(s-a)(s-b)(s-c))

where s is the semi-perimeter of the triangle, calculated as:

s = (a + b + c) / 2

In this case, the side lengths are given as a = 4 cm, b = 5 cm, and c = 3 cm.

Calculating the semi-perimeter:

s = (4 + 5 + 3) / 2 = 6 cm

Using Heron's formula:

A = √(6(6-4)(6-5)(6-3))

= √(621*3)

= √(36)

= 6 cm²

Therefore, the area of triangle ABC is 6 square centimeters.

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The quadratic equation 2a^2 = -6 + 8a has two solutions: a = 3 and a = 1.

To solve the quadratic equation 2a^2 = -6 + 8a, we need to rearrange it into standard quadratic form, which is ax^2 + bx + c = 0, where a, b, and c are coefficients.

Step 1: Move all the terms to one side of the equation to set it equal to zero:

2a^2 - 8a + 6 = 0

Step 2: The equation is now in standard quadratic form, so we can apply the quadratic formula to find the solutions for 'a':

a = (-b ± √(b^2 - 4ac))/(2a)

Comparing with our equation, we have:

a = (-(-8) ± √((-8)^2 - 4(2)(6)))/(2(2))

Simplifying further:

a = (8 ± √(64 - 48))/(4)

a = (8 ± √16)/(4)

a = (8 ± 4)/(4)

Now, we can calculate the two possible solutions:

a1 = (8 + 4)/(4) = 12/4 = 3

a2 = (8 - 4)/(4) = 4/4 = 1

Therefore, the quadratic equation 2a^2 = -6 + 8a has two solutions: a = 3 and a = 1.

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The incidence of brain or nervous system cancer among cell phone users is relatively low, with the estimated percentage being slightly lower than the rate among non-users, which was found to be 0.0326%.

1. Based on a study of 420,020 cell phone users, it was found that 0.0310% of them developed cancer of the brain or nervous system. To estimate the percentage of cell phone users who develop this type of cancer with a 90% confidence interval, we can use statistical methods.

2. The 90% confidence interval estimate for the percentage of cell phone users who develop cancer of the brain or nervous system is calculated as follows. We start by determining the standard error, which is the square root of the product of the observed proportion and its complement, divided by the sample size. In this case, the observed proportion is 0.0310% (or 0.000310) and the sample size is 420,020.

3. Next, we calculate the margin of error, which is obtained by multiplying the standard error by the critical value associated with a 90% confidence level. The critical value can be found using a normal distribution table or statistical software. For a 90% confidence level, the critical value is approximately 1.645.

4. Finally, we construct the confidence interval by subtracting the margin of error from the observed proportion and adding it to the observed proportion. The lower bound of the confidence interval is obtained by subtracting the margin of error from the observed proportion, and the upper bound is obtained by adding the margin of error to the observed proportion.

5. In this case, the 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system is approximately (0.0308%, 0.0312%). This means that we are 90% confident that the true percentage of cell phone users who develop this type of cancer falls within this interval.

6. To summarize, based on the study of 420,020 cell phone users, a 90% confidence interval estimate for the percentage of cell phone users who develop cancer of the brain or nervous system is (0.0308%, 0.0312%). This provides a range within which the true percentage is likely to lie with 90% confidence.

7. In this particular case, the observed proportion of 0.0310% was used to estimate the true percentage of cell phone users who develop cancer of the brain or nervous system. By calculating the standard error and margin of error, we obtained a confidence interval that gives us a range of plausible values for the true percentage. The confidence interval estimate is (0.0308%, 0.0312%), indicating that we can be 90% confident that the true percentage falls within this interval. This means that the incidence of brain or nervous system cancer among cell phone users is relatively low, with the estimated percentage being slightly lower than the rate among non-users, which was found to be 0.0326%.

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Answer:

1,000 balls

Step-by-step explanation:

I hope this helps!

Answer:

you would look at the chart and the answer so this would be answered B

To make a table of values for a linear relationship;

Choose a group of x values before creating the table. Add each x value from the left side column to the equation. Evaluate the equation (middle column) to arrive at the y value

Given,

Linear relationship;

A straight-line link between two variables is referred to statistically as a linear relationship (or linear association). Linear relationships can be represented graphically or mathematically as the equation y = mx + b.

Here,

We have to make a table of values for a linear relationship;

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A)  annual percentage increase in the winner's check over this period is approximately 11595652.17%.

B)   if the winner's prize increases at the same rate, it will be approximately $3,651,682,684.48 in 2055.

a. To find the annual percentage increase in the winner's check over this period, we can use the formula:

Annual Percentage Increase = ((Final Value - Initial Value) / Initial Value) * 100

First, let's calculate the annual percentage increase in the winner's check from 1899 to 2020:

Initial Value = $23
Final Value = $2,670,000

Annual Percentage Increase = (($2,670,000 - $23) / $23) * 100

Now, we can calculate this value using the given formula:

Annual Percentage Increase = ((2670000 - 23) / 23) * 100 = 11595652.17%

Therefore, the annual percentage increase in the winner's check over this period is approximately 11595652.17%.

b. If the winner's prize increases at the same rate, we can use the annual percentage increase to calculate the prize money in 2055. Since we know the prize money in 2020 ($2,670,000), we can use the formula:

Future Value = Initial Value * (1 + (Annual Percentage Increase / 100))^n

Where:
Initial Value = $2,670,000
Annual Percentage Increase = 11595652.17%
n = number of years between 2020 and 2055 (2055 - 2020 = 35)

Now, let's calculate the prize money in 2055 using the given formula:

Future Value = $2,670,000 * (1 + (11595652.17 / 100))^35

Calculating this value, we find:

Future Value = $2,670,000 * (1 + 11595652.17 / 100)^35 ≈ $3,651,682,684.48

Therefore, if the winner's prize increases at the same rate, it will be approximately $3,651,682,684.48 in 2055.

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Answer:

A

Step-by-step explanation:

2 equations have no solutions if they are parallel (they don't intersect each other)

So the only one that has the same slope is A.

Answer:

y=10(x-9)+3

Step-by-step explanation:

Point Slope Formula: y=m(x-x1)+y

y=10(x-9)+3

The absolute uncertainty in A is approximately 0.022254. Rounding it to the same number of decimal places as A, we express the absolute uncertainty as 0.05995 ± 0.00008.

To calculate the absolute uncertainty in A, we need to determine the maximum and minimum values that A can take based on the uncertainties in b and c. The absolute uncertainty in A can be found by propagating the uncertainties through the equation.

Given:

b = 95.68 ± 0.05

c = 43.28 ± 0.02

To find the absolute uncertainty in A, we can use the formula for the absolute uncertainty in a function of two variables:

ΔA = |∂A/∂b| * Δb + |∂A/∂c| * Δc

First, let's calculate the partial derivatives of A with respect to b and c:

∂A/∂b = 1/π

∂A/∂c = -1/π

Substituting the given values and uncertainties, we have:

ΔA = |1/π| * Δb + |-1/π| * Δc

= (1/π) * 0.05 + (1/π) * 0.02

= 0.07/π

Since the value of π is a constant, we can approximate it to a certain number of decimal places. Let's assume π is known to 5 decimal places, which is commonly used:

π ≈ 3.14159

Substituting this value into the equation, we get:

ΔA ≈ 0.07/3.14159

≈ 0.022254

Therefore, the absolute uncertainty in A is approximately 0.022254.

To express the result in the proper format, we round the uncertainty to the same number of decimal places as the measured value. In this case, A is approximately 0.05995, so the absolute uncertainty in A can be written as:

ΔA = 0.05995 ± 0.00008

Therefore, the correct answer is option b. 0.05995 ± 0.00008.

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The difference of 7.2 and 2.5 simply means we should subtract 2.5 from 7.2. The solution is express below

The pseudo-inverse of A is:

A+ =

⎡ cosφ/σ1 -sinφ/σ2 ⎤

⎢ sinφ/σ1 cosφ/σ2 ⎥

⎣ 0 0 ⎦

The pseudo-inverse of a 2x3 matrix A, we first need to compute the singular value decomposition (SVD) of A.

The SVD of A can be written as A = \(U\Sigma V^T\), where U and V are orthogonal matrices and Σ is a diagonal matrix with non-negative diagonal elements in decreasing order.

Since A is a 2x3 matrix, we can assume that the rank of A is either 2 or 1. If the rank of A is 2, then Σ will have two non-zero diagonal elements, and we can compute the pseudo-inverse as A+ = \(V\Sigma ^{-1}U^T\).

If the rank of A is 1, then Σ will have only one non-zero diagonal element, and we can compute the pseudo-inverse as A+ = \(V\Sigma^{-1}U^T\), where \(\Sigma^{-1\) has the reciprocal of the non-zero diagonal element.

Let's assume that the rank of A is 2, so we need to compute the SVD of A.

Since A is a 2x3 matrix, we can use the formula for SVD to write:

A = \(U\Sigma V^T\) =

⎡ cosθ sinθ ⎤

⎣-sinθ cosθ ⎦

⎡ σ1 0 0 ⎤

⎢ 0 σ2 0 ⎥

⎣ 0 0 0 ⎦

⎡ cosφ sinφ 0 ⎤

⎢-sinφ cosφ 0 ⎥

⎣ 0 0 1 ⎦

where θ and φ are angles that satisfy 0 ≤ θ, φ ≤ π, and σ1 and σ2 are the singular values of A.

The diagonal matrix Σ contains the singular values σ1 and σ2 in decreasing order, with σ1 ≥ σ2.

The pseudo-inverse of A, we first compute the inverse of Σ.

Since Σ is a diagonal matrix, its inverse is easy to compute:

\(\Sigma^{-1\)=

⎡ 1/σ1 0 0 ⎤

⎢ 0 1/σ2 0 ⎥

⎣ 0 0 0 ⎦

Next, we compute \(V\Sigma^{-1}U^T\):

A+ = VΣ^-1U^T =

⎡ cosφ -sinφ ⎤

⎣ sinφ cosφ ⎦

⎡ 1/σ1 0 ⎤

⎢ 0 1/σ2 ⎥

⎡ cosθ -sinθ ⎤

⎣ sinθ cosθ ⎦

The pseudo-inverse is not unique, and there may be different ways to compute it depending on the choice of angles θ and φ.

Any valid choice of angles will yield the same result for the pseudo-inverse.

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The pseudo-inverse A+ of a 2x3 matrix A does not exist.

The pseudo-inverse of a matrix is a generalization of the matrix inverse for non-square matrices. However, not all matrices have a pseudo-inverse.

In this case, we have a 2x3 matrix A, which means it has more columns than rows. For a matrix to have a pseudo-inverse, it needs to have full column rank, meaning the columns are linearly independent. If a matrix does not have full column rank, its pseudo-inverse does not exist.

Since the given matrix A has more columns than rows (2 < 3), it is not possible for A to have full column rank, and thus, its pseudo-inverse does not exist.

Therefore, the pseudo-inverse A+ of the 2x3 matrix A is undefined.

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The homogeneous system of linear equations has a solution space with a basis of {(1, 2, -1)}. The dimension of the solution space is 1.

To find a basis for the solution space of the given homogeneous system of linear equations, we need to solve the system and express the solutions in terms of a linear combination of vectors.

The system of equations is as follows:

Equation 1: -x + y - z = 0

Equation 2: 2x - y = 0

Equation 3: 2x - 3y - 4z = 0

We can start by using the equations to eliminate variables. From Equation 2, we can express y in terms of x as y = 2x. Substituting this into Equation 1 gives us -x + 2x - z = 0, which simplifies to x - z = 0. Rearranging this equation, we have x = z.

Now, we can express the variables in terms of a single parameter. Let's choose z as the parameter. Thus, x = z and y = 2x = 2z.

Now, we can express the solutions in vector form as (x, y, z) = (z, 2z, z) = z(1, 2, 1). This means that the solution space is spanned by the vector (1, 2, 1).

To find the basis for the solution space, we need to check if the vector (1, 2, 1) is linearly independent. Since it is the only vector spanning the solution space, it is linearly independent. Therefore, the basis for the solution space is {(1, 2, 1)}.

The dimension of the solution space is equal to the number of vectors in the basis, which in this case is 1. Therefore, the dimension of the solution space is 1.

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Answer:

The third prime factor is 5.

Step-by-step explanation:

What you have so far is 18

You need to multiply 18 by something to get 90

The easiest way about finding out what the fact is is to set up this equation

18*x = 90                 Divide by 18

x = 90/18

x  = 5                        5 is a prime factor, you don't need to break it down.

Answer:

DF=41

Step-by-step explanation:

It is given that F is the midpoint of DE. We know that, midpoint bisects the line segment. So,

DF=FE

3x+5=5x-19

Subtracting both sides by 3x

3x+5-3x=5x-19-3x

5=2x-19

Subtract both sides by 5

5-5=2x-19-5

0=2x-24

2x=24

x=12

So, the value of x is 12.

Put x = 12 in DF=3x+5

DF=3(12)+5

DF= 36+5

DF = 41

So, the value of DF is 41.

exist (meaning they are finite numbers). Then

1. limx→a[f(x) + g(x)] = limx→a f(x) + limx→a g(x) ;

(the limit of a sum is the sum of the limits).

2. limx→a[f(x) − g(x)] = limx→a f(x) − limx→a g(x) ;

(the limit of a difference is the difference of the limits).

3. limx→a[cf(x)] = c limx→a f(x);

(the limit of a constant times a function is the constant times the limit of the function).

4. limx→a[f(x)g(x)] = limx→a f(x) · limx→a g(x);

(The limit of a product is the product of the limits).

5. limx→a

f(x)

g(x) =

limx→a f(x)

limx→a g(x)

if limx→a g(x) 6= 0;

(the limit of a quotient is the quotient of the limits provided that the limit of the denominator is

not 0)

Example If I am given that

limx→2

f(x) = 2, limx→2

g(x) = 5, limx→2

h(x) = 0.

find the limits that exist (are a finite number):

(a) limx→2

2f(x) + h(x)

g(x)

=

limx→2(2f(x) + h(x))

limx→2 g(x)

since limx→2

g(x) 6= 0

=

2 limx→2 f(x) + limx→2 h(x)

limx→2 g(x)

=

2(2) + 0

5

=

4

5

(b) limx→2

f(x)

h(x)

(c) limx→2

f(x)h(x)

g(x)

Note 1 If limx→a g(x) = 0 and limx→a f(x) = b, where b is a finite number with b 6= 0, Then:

the values of the quotient f(x)

g(x)

can be made arbitrarily large in absolute value as x → a and thus

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The triangle with three acute angles and three congruent sides is classified as an equilateral acute triangle by it's sides and angles.

An equilateral triangle is a triangle in which all the side lengths have the same measure.

Consequently, all the angle measures on the triangle will be equal, and the measure will be of:

180/3 = 60º.

(as the sum of the internal angles of a triangle is of 180º).

As the larger angle measures is less than 90º, the angle is an acute triangle.

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(a) The probability of finding oil is 0.85

(b) The firm interpret the soil test as the probability of finding oil has decreased since the prior probabilities.

c) The revised probabilities is 100%.

A oil company has purchased an option on land in Alaska.

To determine the likelihood of finding oil, the company conducted preliminary geologic studies to assign prior probabilities of finding high-quality oil (0.65), medium-quality oil (0.20), or no oil (0.15). Therefore, the probability of finding oil is 0.65 + 0.20 = 0.85.

After 200 feet of drilling on the first well, a soil test was taken to determine the likelihood of finding high-quality oil (0.20), medium-quality oil (0.80), or no oil (0.20).

The results of this test should be interpreted as follows: the probability of finding oil has decreased since the prior probabilities.

Therefore, the revised probabilities are 0.20 + 0.80 = 1.00. This means that the oil company has a 100% probability of finding either high-quality or medium-quality oil.

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a) The probability that an apple from the tree has a weight greater than 90 grams is of: 0.2514 = 25.14%.

b) i) The p-value of the test is of: 0.0045.

b) ii) The conclusion of the test is given as follows: There is enough evidence to conclude that the mean weight of apples from tree A is greater than the mean weight of apples from tree B, as the p-value of the test is less than the significance level.

The z-score of a measure X of a variable that has mean symbolized by \(\mu\) and standard deviation symbolized by \(\sigma\) is obtained by the rule presented as follows:

\(Z = \frac{X - \mu}{\sigma}\)

The mean and the standard deviation of the weight of the apples are given as follows:

\(\mu = 85, \sigma = 7.5\)

The probability that an apple from the tree has a weight greater than 90 grams is one subtracted by the p-value of Z when X = 90, hence:

Z = (90 - 85)/7.5

Z = 0.67

Z = 0.67 has a p-value of 0.7486.

1 - 0.7486 = 0.2514 = 25.14%.

For each sample, the mean and the standard error are given as follows:

Hence, for the distribution of differences, the mean and the standard error are given as follows:

The test statistic is given by the division of the mean by the standard error of the distribution of differences, hence:

z = 4.2/1.61 = 2.61.

Using the z-table, with z = 2.61, the p-value is of:

0.0045.

As the p-value is less than the significance level, there is enough evidence to conclude that the mean weight of apples from tree A is greater than the mean weight of apples from tree B.

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Answer:

m=1

Step-by-step explanation:

slope formula is y=mx-b

whenever a variable is by itself, the coefficient is always 1

Take the square root of each side.

\(\sf \sqrt{x^{2} } =\sqrt{25} \\\\\\ x=\± 5\)

Answer:

i think it's 7 bags will have 6 berries correct me if I'm wrong

Answer:

Step-by-step explanation:

only 7.630 round to 7.6

Answer:

5 feet

Step-by-step explanation:

When you place the 13 foot ladder, the ladder, floor, and wall forms a right triangle and the ladder will become the hypotenuse.

We use the Pythagorean Theorem. Let x be the distance from the building.

x^2 +12^2 = 13^2

x^2 + 144 = 169

x^2 = 169 - 144

x^2 = 25

Take the square root of 25 and you get 5

x = 5

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

= -3 2/5 - 5/6

= - 17/5 - 5/6  ---- LCM of 5 & 6 is 30

= _  17 * 6   _   5 * 5  

       5 * 6        6 * 5

=  _  102 - 25

            30

=  _ 127

        30

Answer:

0.13 inches.

Step-by-step explanation:

1 inch = 2.54 cm

So 1 cm = 1/ 2.54 in

0.33 cm = 0.33/2.54 in

= 0.13 inches.