Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!!!

Answer:

(0,2) + (-6,6) =

Step-by-step explanation:

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Answer:

11

Step-by-step explanation:

16 - 4\(\sqrt{5}\) + 4\(\sqrt{5}\) - 5

= 16 - 5

= 11

A basis for Col A is (-2,2,0,0) and (4,-6,0,0). A basis for Nul A is (2,1,0,0), (-1,0,1,1/2), and (-2,0,0,1). These bases were found using the row reduced form of A.

Since A is row equivalent to B, they have the same row space, null space, and column space. Thus, we can find the bases for Nul A and Col A using the row reduced form of A, which is

\(\left[\begin{array}{cccc}1&-2&1&2\\0&1&1/2&-1\\0&0&0&0\\0&0&0&0\end{array}\right]\)

To find a basis for Col A, we can take the columns of A that correspond to the pivot columns in the row reduced form. In this case, the pivot columns are the first and second columns. Therefore, a basis for Col A is

(-2, 2, 0, 0), (4, -6, 0, 0)

To find a basis for Nul A, we need to solve the system of homogeneous linear equations Ax = 0, which is equivalent to solving the system of equations corresponding to the row reduced form. Letting the free variable be t, we have

x¹ - 2x² + x³ + 2x⁴ = 0

x² + (1/2)x³ - x⁴ = 0

Expressing x¹ and x⁴ in terms of x² and x³, we get

x¹ = 2x² - x³ - 2x⁴

x⁴ = (1/2)x³ - x²

Thus, any solution to Ax = 0 can be written as

x = (2x² - x³ - 2x⁴, x², x³, (1/2)x³ - x²) = x²(2, 1, 0, 0) + x³(-1, 0, 1, 1/2) + x⁴(-2, 0, 0, 1)

Therefore, a basis for Nul A is

(2, 1, 0, 0), (-1, 0, 1, 1/2), (-2, 0, 0, 1)

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The graph correctly represents this system is attached below.

An equation is an expression that shows the relationship between two or more numbers and variables. A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

We are given system of equation as;

2y + x = -5

y - 3x = -6

The solution to the system of equations is given as (x, y) = (1, -3).

The solution to the system of equations ploted on the graph is the point where the lines intersect.

The coordinates of the point of where the lines cross are (1, 3).

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Answer:

See below

Step-by-step explanation:

The probability will be 0.88, hat the total number of dots is between 300 and 400.

What is probability?

By simply dividing the favorable number of possibilities by the entire number of possible outcomes, the probability of an occurrence can be determined using the probability formula. Because the favorable number of outcomes can never exceed the entire number of outcomes, the chance of an event occurring might range from 0 to 1.

mean number of dok = 3.5 and

st. deianon = 1.7078

so manor 100 toss = 2,5%

st duiation is = 1.7078 x (100)\(.^{1/2}\)

=17.078

R = 2.92 St. deviation away from mian

probability that total no lie between 300 and 400.

= 1 - \(\frac{1}{k^{2} }\)

=0,88

Hence, The probability will be 0.88.

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Answer:

Step-by-step explanation:

Table 1 represents a proportional function.  Here's how we recognize that:  every time x increases by 1, y increases by 8:  y = 8x.  Note that this function does not have a y-intercept and the relationship is not proportional

Table 2 requires a bit more work to classify.  Notice that as x increases from 5 to 7 (a horizontal jump of 2 units), y increases from 5 to 21 (vertical jump of 16 units).  Thus, if this is a straight line, the slope is m = rise/run = 16/2 = 8.  Let's write a tentative equation for the straight line thru these two points:

y = mx + b  becomes 5 = 8(5) + b, or -35 = b.  The presence of a non-zero y-intercept is a sure giveaway that this is not a proportional relationship.

Answer:

1) A

3) A

Step-by-step explanation:

Solve using factoring or quadratic formula.

\(__________________________\)

Answer:

Tip- $5.16

Total cost- $33.86

Step-by-step explanation:

To find a 18% tip, turn 18% into 0.18.

Multiply 28.67 by 0.18.

28.67x0.18=

5.16

If you add that to the bill, it would be 33.86

Answer:

1-9, 1929

Step-by-step explanation:

You do the arithmetic and then study the us government postal codes and then you do kid behavior with my names. So, you get 1929 basically, in a nutshell, forever incessantly. thank yopu  

We can use the substitution $u=x^2+9$ to find the indefinite integral of the given expression. We have:

\(∫�2�2+9��=\)\(12∫2��2+9���∫ x 2 +9​\)

\(x 2\)

​

\(dx= 21​ ∫ x 2 +9​ 2x​ xdx\)

Let $u=x^2+9$, then $\frac{du}{dx}=2x$ and $dx=\frac{du}{2x}$, so we have:

\(12∫2��2+9���=12∫1���21​ ∫ x 2 +9​ 2x​ xdx= 21​ ∫ u​ 1​ du\)

Integrating with respect to $u$, we get:

\(12∫1���=�+�=�2+9+�21​ ∫ u​ 1​ du= u​ +C= x 2 +9​ +C\)

where $C$ is a constant of integration. Therefore, the indefinite integral of $\frac{x^2}{\sqrt{x^2+9}}$ is $\sqrt{x^2+9} + C$, where $C$ is a constant.

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Variable

Step-by-step explanation:

To find the equation of the tangent plane to the given equation 2(x-2)^2 (y-1)^2 (z-3)^2=10, we need to find the gradient of the function and use the point-slope form of a plane.

First, we find the gradient of the function by taking the partial derivatives with respect to x, y, and z:

∂f/∂x = 4(x-2)(y-1)^2(z-3)^2

∂f/∂y = 4(x-2)^2(y-1)(z-3)^2

∂f/∂z = 4(x-2)^2(y-1)^2(z-3)

Next, we find the point on the surface where we want to find the tangent plane. For simplicity, let's choose the point (2,1,3), which is on the surface because 2(2-2)^2(1-1)^2(3-3)^2=0=10.

Now we plug in the point into the gradient to find the normal vector to the plane:

∂f/∂x(2,1,3) = 4(2-2)(1-1)^2(3-3)^2 = 0

∂f/∂y(2,1,3) = 4(2-2)^2(1-1)(3-3)^2 = 0

∂f/∂z(2,1,3) = 4(2-2)^2(1-1)^2(3-3) = 0

So the normal vector is <0,0,0>.

Finally, we use the point-slope form of a plane to find the equation of the tangent plane:

0(x-2) + 0(y-1) + 0(z-3) = 0

Simplifying, we get:

0 = 0

This means that the tangent plane is the entire xyz-space, since any point satisfies this equation.

Therefore, the equation of the tangent plane to the given equation at the point (2,1,3) is 0 = 0.

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If two points are at different heights on a graph, we would need to check the values of the dependent variable (y-axis) to establish if they are actually different.

To establish if two points on a graph at different heights are actually different, we should check the values of the dependent variable (y-axis) being plotted

We should check the numerical values of the variable being plotted on the y-axis to see if they are different between the two points. This would tell us whether there is a statistically significant difference between the two groups or not.

To determine whether the difference between the two points is statistically significant, we can perform a hypothesis test or a statistical analysis to compare the means or distributions of the data at the two points.

Alternatively, we can also look at confidence intervals or p-values to establish the statistical significance of the difference between the two points.

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The solution of the equation is m = 6.

The variable to find is variable m.

The equation is as follows:

−3(m − 4) = − 6

Hence, let's open the bracket on the left side of the equation

−3(m − 4) = − 6

- 3m + 12 = -6

subtract 12 from both sides of the equation

- 3m + 12 = -6

- 3m + 12 - 12 = -6 - 12

- 3m = - 18

divide both sides of the equation by -3

- 3m / - 3 = - 18 / -3

Therefore,

m = 6

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Answer:

Step-by-step explanation:

Find the value of m: −3(m − 4) = −6

m = −6

m = −2

m = 2

m = 6

-3(m - 4) = -6

-3m + 12 = -6

-3m = -6 - 12

- 3m = -18

m = -18 : (-3)

m = 6

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

-3(6 - 4) = -6

-18 + 12 = -6

-6 = -6

The length of the steering device will be 4.5 inches.

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

The steering device extends to point T, and the diameter of the steering wheel is 15 inches long. Then the length of the steering device is given as,

7.5² = h² + 6²

56.25 = h² + 36

h² = 56.25 - 36

h² = 20.25

h = 4.5 inches

The length of the steering device will be 4.5 inches.

The diagram is given below.

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At the end of 12 hours, there will be 12,800 bacteria in the culture.

If the number of bacteria doubles every 2 hours, it means that the growth rate of the bacteria is exponential with a doubling time of 2 hours.

To find out how many bacteria will be in the culture at the end of 12 hours, we can use the formula for exponential growth:

N = N₀ x 2^(t/T)

where:

N₀ = initial number of bacteria = 200

N = final number of bacteria

t = time elapsed = 12 hours

T = doubling time = 2 hours

Substituting the values, we get:

N = 200 x 2⁽¹²/²⁾

N = 200 x 2⁶

N = 200 x 64

N = 12,800

Therefore, at the end of 12 hours, there will be 12,800 bacteria in the culture.

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Answer:

f^(-1)(x) = sqrt(x/49)

Step-by-step explanation:

To find the inverse function of f(x) = 49x^2, we need to solve for x in terms of f(x) and then interchange x and f(x).

f(x) = 49x^2

f(x)/49 = x^2

sqrt(f(x)/49) = x (since x > 0)

So, the inverse function of f(x) is:

f^(-1)(x) = sqrt(x/49)

Note that the domain of f^(-1) is x ≥ 0, since x must be positive for the inverse function to be defined. Also, note that f(f^(-1)(x)) = f(sqrt(x/49)) = 49(sqrt(x/49))^2 = 49(x/49) = x, and f^(-1)(f(x)) = sqrt(f(x)/49) = sqrt(49x^2/49) = x. Therefore, f^(-1) is the inverse function of f.

Answer:

true

Step-by-step explanation:

Concept mapping is a visualization tool comprised of learning techniques that help develop and organize ideas.

Answer:

True

Step-by-step explanation:

Paul's reasoning is not correct. The fact that there are three possible outcomes (win, lose, or tie) does not necessarily mean that each outcome is equally likely.

Probability is the measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event will not occur and 1 means the event is certain to occur. The probability of an event can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. It is used in various fields including mathematics, statistics, physics, engineering, finance, and more to help understand and predict the occurrence of events.

Here,

The probability of each outcome depends on various factors, such as the strength of the opposing team, the weather conditions, the health and fitness of the players, and other relevant factors. Therefore, it is not possible to determine the probability of winning based solely on the number of possible outcomes.

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Answer:

20. \(-\frac{y^{12} }{9x^{4} }\)    

Step-by-step explanation:

21.  \(3 x^{2} y^{2}\)

Answer:

2

Step-by-step explanation:

Hey there!

The equation is asking us, c x c = 4

What is c?

Well the only number that is equal to 4 when you square it is 2

The answer is c. Chi-square test. A Chi-square test is an inferential statistical technique used to analyze the relationship between two categorical variables organized in a bivariate table.

In a chi-square test, the data is organized into a contingency table, also known as a cross tabulation or bivariate tabulation. This table displays the frequency distribution of two categorical variables, showing how they are related or associated with each other.

The chi-square test evaluates whether there is a significant relationship or association between the variables. It calculates a test statistic based on the observed frequencies in the contingency table and compares it to the expected frequencies under the assumption of independence between the variables. If the test statistic is sufficiently large, it indicates that there is a significant relationship between the variables, rejecting the null hypothesis of independence.

The chi-square test is widely used in various fields, including social sciences, market research, and epidemiology, to determine if there is a significant association between categorical variables. It provides valuable insights into the relationship between variables and helps researchers make informed conclusions based on their data.

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Answer:

11. 720 in.^2 12.67.5 ft^2 13. 3.9m^2

Step-by-step explanation:

Answer:

12 lbs for $15

Step-by-Step Solution:

12 / $15 = $0.80

8 / $9.20 = $0.87