Solve for x.

x - 13 =-7

Answer:

its B

Step-by-step explanation:

have a great day my man

answer

24.3*2=48.6mph

Step-by-step explanation:

i assume you mean speed of someone traveling 24.3 miles per half hour in mph

Answer:

Yes

Step-by-step explanation:

Yes

Answer:

50

Step-by-step explanation:

a) For chi-squared distribution with v=3 degrees of freedom, the statistic that can be constructed using Xi's is:

X2 = Σ i=1 3 (Xi − i)2 / 3.

X2 has chi-squared distribution with 3 degrees of freedom.

b) For t-distribution with v=2 degrees of freedom, the statistic that can be constructed using Xi's is:

T = (X1 − 1) / [(X2/2)0.5].

T has t-distribution with 2 degrees of freedom.

c) For F-distribution with v1=1 and v=2 degrees of freedom, the statistic that can be constructed using Xi's is:

F = [(X1 − 1)/1] / [(Σi=2 to 3 Xi2) / 2].

F has F-distribution with 1 and 2 degrees of freedom.

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Answer:

Pyramid, cylinder, cone, prism

Step-by-step explanation:

Answer:

Pyramid, cylinder, cone, prism

Step-by-step explanation:

Answer:

$12

Step-by-step explanation:

amount spent for 8 movie tickets is equal to 118 - 22 = 96

divide 96 by 8 to get per movie ticket cost of $12

The answer is 7

A tip you can do is get the sum subtract the number you do have so you would get your X value. So 18-11=7

Answer: x = 7

------------------------------

x + 11 = 18

x = 18 - 11

x = 7

\( \\ \)

I hope to help :p

Answer:

=x^2+1 (Graph Example), 4x+2=2 (x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. See More Examples ». x+3=5. 1/3 +

Step-by-step explanation:

Answer:

y=x^2+1

Step-by-step explanation: 4x+2=2 (x+6)

True. The linear regression model is commonly used for descriptive purposes, such as identifying and quantifying relationships between variables.

True. While a linear regression model can be valuable for descriptive purposes, such as understanding relationships between variables, its predictive value can be limited. This is because linear regression models make assumptions about the linearity of the relationship between variables and may not capture more complex patterns in the data. Additionally, factors like outliers, multicollinearity, and overfitting can negatively impact the model's predictive accuracy. Therefore, it is important to consider these limitations when using a linear regression model for prediction purposes. However, its predictive value is limited as it assumes a linear relationship between variables and does not account for complex interactions or non-linearities in the data. Other predictive models, such as machine learning algorithms, may be more effective in predicting outcomes.

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Answer:

27

Step-by-step explanation:

Verified correct with test results.

Answer:

3.98 cm

Step-by-step explanation:

V= πr²h

V= 200 cm³, r= 4 cm, h=?

h= V/(πr²)= 200/(3.14*4²)= 3.98 cm

Answer: (x+5)(x+2)^2

Step-by-step explanation: Expanding (x+5)(x+4)(x+4) gives:

(x+5)(x+4)(x+4) = x(x+4)(x+4) + 5(x+4)(x+4)

= x^2(x+4) + 4x(x+4) + 5x(x+4) + 20(x+4)

= x^3 + 4x^2 + 5x^2 + 20x + 16x^2 + 80x + 20x + 80

= x^3 + 9x^2 + 45x + 80

Fully simplifying this expression gives:

x^3 + 9x^2 + 45x + 80 = (x+5)(x^2+4x+16)

= (x+5)(x+2)^2

The substitution, transforms the Bernoulli equation dy/dx + P(x)y = Q(x)y^n into the linear equation dv/dx+(1-n)P(x)v(x) = (1 - n)Q(x). It is done as:

The equation is in the form  

dy/dx +P(x)y=Q(x)yⁿ,  where P and Q are functions of x or constants, this is called Bernoulli's equation.

Now, we have to substitution using 

\(v = {y}^{1 - n} \)

Differentiating both side with respect to 'x'

\(v' = (1 - n) {y}^{ - n} y' \\ \frac{dx}{dy} = \frac{1}{1 - n} {y}^{n} v'\)

we get,

\(= \frac{1}{1 - n} {y}^{n} v' + p(x)y \\ = q(x) {y}^{n} \\ = v' + (1 - n)p(x) {y}^{1 - n} \\ = (1 - n)q(x)\)

Now, by using 

\(v' = {y}^{1 - n} \)

The given equation is expressed as:

\(v + (1 - n)p(x)v = (1 - n)q(x)\)

or dv/dx + (1-n)P(x)v(x) = (1 - n)Q(x)

The Bernoulli equation simply states that total energy per unit mass of flowing fluid, at any point in the subsurface, is the sum of the kinetic, potential, and fluid-pressure energies and is equal to a fixed value. The Bernoulli Equation can be viewed as a statement of the conservation of energy principle applicable to flowing fluids.

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To find the distance between two points (x₁, y₁, z₁) and (x₂, y₂, z₂) in three-dimensional space, we can use the distance formula:

Distance = √[(x₂ - x₁)² + (y₂ - y₁)² + (z₂ - z₁)²]

Answer :  (7, 5, 2.5).

In this case, the given points are (9, 7, 3) and (5, 3, 2). Let's calculate the distance:

Distance = √[(5 - 9)² + (3 - 7)² + (2 - 3)²]

        = √[(-4)² + (-4)² + (-1)²]

        = √[16 + 16 + 1]

        = √33

        ≈ 5.74 (rounded to the nearest tenth)

Therefore, the distance between the points (9, 7, 3) and (5, 3, 2) is approximately 5.74.

To find the midpoint of the segment with these endpoints, we can use the midpoint formula:

Midpoint = ((x₁ + x₂) / 2, (y₁ + y₂) / 2, (z₁ + z₂) / 2)

Let's calculate the midpoint:

Midpoint = ((9 + 5) / 2, (7 + 3) / 2, (3 + 2) / 2)

        = (14 / 2, 10 / 2, 5 / 2)

        = (7, 5, 2.5)

Therefore, the midpoint of the segment with endpoints (9, 7, 3) and (5, 3, 2) is approximately (7, 5, 2.5).

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Answer:

-11/9 is the slope

Step-by-step explanation:

Use the formula and u will find this is the answer, hope this helped!

Y2 - Y1 / X2 - X1

(-9 - 2) / (6 - (-3))

<!> Brainliest is appreciated!

Answer:

-11/9

Step-by-step explanation:

In order to find the slope from 2 points, use the following formula: \(m=\frac{y_{2} - y_{1} }{x_{2}-x_{1} }\)

Plug in each of the numbers into their corresponding areas. Basically, we are subtracting the y values together and dividing it with the difference of the x values:

\(\frac{-9-2}{6-(-3)}\)

The negatives cancel out and become postive, so the denominator will then read to be 6+3:

\(\frac{-9-2}{6+3}\)

\(-\frac{11}{9}\)

based on observations of his own children, jean piaget formed a theory about the cognitive development of all children. this is an example of inductive reasoning reasoning.

Inductive reasoning :

Inductive reasoning is a method of reasoning by proceeding from the specific to the general. Inductive reasoning or inductive logic is a type of reasoning in which a general conclusion is drawn from a set of specific observations.

It contrasts with deductive reasoning, which usually moves from general information to specific conclusions. Inductive reasoning is also known as inductive logic or bottom-up reasoning because it involves extending certain premises to broader generalizations.

Examples of Inductive Reasoning:

Here is the basic form of inductive reasoning, with premises and generalized conclusions based on concrete data:

1. All the swans I have seen are white. (Premise)

2. Therefore, all swans are white. (Conclusion)

In this example the conclusion is actually wrong

- There is also a black swan. This is the so-called "weak" argument. However, it is easy to strengthen the conclusion by increasing the likelihood.

1. All the swans I have seen are white. (Assumption)

2. Therefore, most swans are probably white. (Conclusion)

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Answer:

C

Step-by-step explanation:

All angles in a triangle add up to 180°.

63 + 52 = 115°.

180 - 115 = 65°, so part of the answer is done, y = 65°.

The angle next to y is a vertical angle.

61 + 65 = 126°.

180 - 126 = 54°.

So, x = 54°, y = 65°.

The volume of the square-based pyramid is 3888 units³. Your answer is option B. 3888 units³.

The formula to calculate the volume of a pyramid is V = (1/3)Bh,

Where B is the area of the base and h is the height.

In this case, the base is a square with edge length 9 units, so the area is B = 9² = 81 units².

The height is given as 48 units.
Plugging these values into the formula, we get:
To find the volume of a square-based pyramid, you can use the following formula:

V = (1/3) * base area * height.

In this case, the base edge is 9 units and the height is 48 units.

First, find the base area:

A = side * side = 9 * 9

= 81 square units.

Next, calculate the volume:

V = (1/3) * 81 * 48 = 3888 cubic units.
V = (1/3)(81)(48)
V = 1296 units³
Therefore, the volume of the pyramid is 1296 units³, which is option b.

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The series ∑((-1)ⁿ⁺¹/(2n⁴) from n=0 to infinity is converges.

To test the convergence or divergence of the series ∑((-1)ⁿ⁺¹/(2n⁴) from n=0 to infinity, we can use the alternating series test.

The alternating series test states that if a series has the form ∑((-1)ⁿ)bₙ or ∑((-1)ⁿ⁺¹)bₙ.

where bₙ is a positive sequence that converges to zero as n approaches infinity, then the series converges.

We have ∑(-1)ⁿ⁺¹/2n⁴.

Let's analyze the sequence bₙ=1/2n⁴

The sequence bₙ = 1/(2n⁴) is always positive.

As n approaches infinity, 1/(2n⁴) approaches zero.

Therefore, we can apply the alternating series test to our series. T

The alternating series ∑((-1)ⁿ⁺¹/(2n⁴) converges because the sequence bₙ=1/2n⁴ satisfies the conditions of the alternating series test.

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Answer:

Step-by-step explanation:

first we subtract 92.1 from 41 which gives us 51.1 now we want to see how many hours we can keep the room for while staying under 91.1 so we divide the value of 51.1(as we have to first pay the fee of $41) by 7.3 as that is the amount they are charging per hour(51.1/7.3) which gives us 7 so we can rent the roof for 7 hours max or just for 1,2,3,4,5 or 6 hours

Answer:

A

Step-by-step explanation:

y=4x+7

To prove that two angles in two triangles are congruent, you must use the Angle-Angle Postulate (AA).  The Angle-Angle Postulate states that if two angles of one triangle are congruent to two angles of another triangle, then the two triangles are congruent.

Therefore, to prove that two angles in two triangles are congruent, you must first show that the two angles have the same measure. This can be done by using the Angle Addition Postulate or by using subtracting the measure of one angle from the measure of the other.

Three vertices and three sides make up a triangle, which is a polygon. The triangle's angles are created when the three sides are joined end to end at a point. The three angles of the triangle sum up to 180 degrees.

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C -> abbC gives us a grammar for the given language.

To construct a grammar over e = a,b whose language is ambn 0 < n < m < 3n, we can use the following production rules:

S -> abA | aabB | aaabC
A -> abbA | abbbA | aabB | aaabC
B -> abbB | aabC
C -> abbC

In these production rules, S is the start symbol. It generates strings of the form ambn where n < m < 3n. To generate such strings, we start by generating a single "a" followed by "m-n" "a"s and "n" "b"s using the rules A, B, and C. Then, we append "n-m" "b"s using the rule A, followed by a single "b" using the rule S. This gives us a string of the desired form.

This grammar ensures that the language generated only includes strings of the desired form and no other strings. It is a context-free grammar, which means that it can be used to generate an infinite number of strings of the desired form.

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The empirical method is the right answer.

Empirical probability is calculated by dividing the number of times an event was seen in your data by the entire sample size. An event's relative frequency is strongly connected to an empirical probability, also known as an experimental probability.

Empirical probability bases its estimation of the likelihood that a specific result will recur on the number of instances of that outcome within a sample set. In short, the empirical method uses relative frequencies to determine probabilities.

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To determine whether the vectors (-2,1,-1) and (0,3,1) are parallel, we need to compare their direction. If they have different directions, they are not parallel. the correct answer is option c) Not parallel.

To check if two vectors are parallel, we can compare their direction vectors. The direction vector of a vector can be obtained by dividing each component of the vector by its magnitude. In this case, let's calculate the direction vectors of the given vectors.

The direction vector of (-2,1,-1) is obtained by dividing each component by the magnitude:

Direction vector of (-2,1,-1) = (-2/√6, 1/√6, -1/√6)

The direction vector of (0,3,1) is obtained by dividing each component by the magnitude:

Direction vector of (0,3,1) = (0, 3/√10, 1/√10)

Comparing the direction vectors, we can see that they are not equal. Therefore, the vectors (-2,1,-1) and (0,3,1) are not parallel. Hence, the correct answer is option c) Not parallel.

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Answer:368

Step-by-step explanation:

Answer:

x1, y1

Step-by-step explanation:

Answer:

(x1,y1)

Step-by-step explanation:

The given limit is: lim\(P → (−2, −2, 0)(x+11+ y+11+ z−52)\). To solve this limit we will use the following steps:Substitute\(x = -2, y = -2, and z = 0\)in the given[limit.tex]lim P → (−2, −2, 0)((-2)+11+ (-2)+11+ (0−5)2) = lim P → (−2, −2, 0)(−4) = −4.\)

Since the value of the limit is finite and is equal to -4, it can be concluded that the given limit exists. Therefore, the required limit of the given expression is -4. The expression is given bylim\(P → (−2, −2, 0)(x+11+ y+11+ z−52)\)

which on substituting the values of x, y, and z is equal to \(lim P → (−2, −2, 0)((-2)+11+ (-2)+11+ (0−5)2) = lim P → (−2, −2, 0)(−4) = −4.\)Therefore, the required limit of the given expression is -4.

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