I need some help please

Answer:

y=3x+4.8 would be the incorrect answer

Step-by-step explanation:

1234567 ate ine tan

Answer:

the correct answer is A. y= 4.8x + 3 on Edge

Answer:

65

Step-by-step explanation:

It ends in 5 or 0. 65 divided by 5= 13

Answer: 10

Step-by-step explanation:

6-5 = 1

-2 x 1 = -2

-2 x -5 = 10

The perimeter of the triangle BCD is 17.25 centimeters.

A closed route that covers, encircles, or outlines a one-dimensional length or a two-dimensional form is called a perimeter. A circle's or an ellipse's circumference is referred to as its perimeter. There are several uses in real life for perimeter calculations.

so, perimeter of the triangle is the sum of all its side length.

Perimeter of one triangle / perimeter of another triangle= side of one triangle by side of another triangle.

let us suppose that the perimeter of triangle BCD is equal to X

27.6/x = 9.6/6

x = 17.25 cm

therefore, the perimeter of triangle BCD is equal to 17.25 centimeters.

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The distribution does not represent a probability distribution. The correct option is b.

A probability distribution should satisfy two main conditions: (1) the sum of the probabilities for all possible outcomes should be equal to 1, and (2) the probabilities for each outcome should be between 0 and 1 (inclusive).

In this distribution, the probabilities for the outcomes are 0.3, 0.4, 0.3, and 0.1 for the values of X as 3, 6, 9, and 0, respectively. However, the sum of these probabilities is 1.1, which violates the first condition of a probability distribution.

Therefore, this distribution does not meet the requirements of a probability distribution and is not a valid probability distribution. The correct answer is option b.

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The answer to the expression 2b x b is simply 2b^2. Exponentiation is a mathematical operation that raises a number to a power, and in this case, b is raised to the power of 2.

Alternatively, if exponentiation is not allowed, the answer to the expression is simply 2b * b, which can be simplified to 2b^2 as well.

So, the answer to the expression 2b x b is 2b^2, regardless of whether or not exponentiation is used.

The expression 2b x b represents the product of two scalars, 2 and b, multiplied by a scalar b.

The expression could represent a variety of quantities in mathematics and science, including the area of a rectangle, the volume of a cube, or the kinetic energy of an object, among others.

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Answer:

Negative line

Step-by-step explanation:

Going up is positive (think in going uphill)

Going down is negative

The sample space for flipping four coins is  {HHHH, HHHT, HHTH, HTHH, THHH, HHTT, HTHT, HTTH, THHT, THTH, TTHH, HTTT, THTT, TTHT, TTTH, TTTT}.

The sample space for flipping four coins can be represented as a set of all possible outcomes, where each outcome is a sequence of four coin tosses. Each coin toss can result in either heads (H) or tails (T).

The sample space, Ω, for this experiment can be expressed as:

Ω = {HHHH, HHHT, HHTH, HTHH, THHH, HHTT, HTHT, HTTH, THHT, THTH, TTHH, HTTT, THTT, TTHT, TTTH, TTTT}

Here, for example, the outcome HHHT means that the first three coins landed heads, while the last coin landed tails.

The outcome HTHH means that the first coin landed heads, the second and third coins landed tails, and the fourth coin landed heads.

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A. A labeled circle graph to represent the percentages in the table is shown below.

B. The amount of money this family spent on each category for the party are;

In this scenario and exercise, we can make use of an online graphing calculator or Microsoft Excel to create and label a circle graph based on the percentages shown in the table. You should type in the various categories and input values (percentages) in columns and then click on insert (charts).

Part b.

Next, we would calculate the amount of money the family spent on each category for the party are as follows;

Drinks = 32/100 × 600

Drinks = $192.

Food = 38/100 × 600

Food = $228.

Entertainment = 18/100 × 600

Entertainment = $108.

Decorations = 12/100 × 600

Decorations = $72.

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Answer:

6,9,2,4,10

Step-by-step explanation:

There are possible multiples that can be divisible by 54.

1824 drove a car

2256 take a bus

672 ride the subway

48 ride a bicycle

Answer:

-3y+18

Step-by-step explanation:

-3 x y = -3

-3 x -6 = 18

-3y + 18

Hope that helps!

Answer:

5x-4y=10

solution

first find x intercept is the graph cross x-axis.to find the x intercept,we set y¹=0 and the Solve x.

5x-4y=10

5x-4(0)=0

x¹ =2 y¹=0

y intercept

5x-4y=10

5(0)-4y=10

y²=2.5 x²=0

The solution to the equation \((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\) is 10.3891

From the question, we have the following parameters that can be used in our computation:

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\)

Using the following trigonometry ratio

sin²(x) + cos²(x) = 1

We have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = (\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + 1 + e^2\)

The sum to infinity of a geometric series is

S = a/(1 - r)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = \frac{1/2}{1 - 1/2} + \frac{9/10}{1 - 1/10} + 1 + e^2\)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 1 + 1 + 1 + e^2\)

Evaluate the sum

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 3 + e^2\)

This gives

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 10.3891\)

Hence, the solution to the equation is 10.3891

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Answer:

4

Step-by-step explanation:

18x2=36

36-32=4

The equation of the line in slope intercept form is y = 8x -1.

What is slope intercept form?

The graph of the equation y = mx + b is a line with slope m and y-intercepts b. The form of the linear equation is called the slope-intercept form, and the values of m and b are real integers.

The slope, m, of a line indicates how steep it is. The gradient of a line is another name for the slope of a line. The y-intercept of a line is the y-coordinate of the location where the line's graph crosses the y-axis.

We are given two points which are (-1,-9) and (1,7).

First, we need to find the slope(m)

\(m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }\)

\(m=\frac{7 +9 }{1+1 }\)

m = 16/2

m = 8

We know that b = y₁ - x₁(y₂ - y₁)/(x₂ - x₁)

So,

⇒b = (-9) + 1(7 + 9)/(1+1)

⇒b = -9 + 8

⇒b = -1

The equation comes out to be

⇒y = mx + b

⇒y = 8x -1

Hence, the equation of the line in slope intercept form is y = 8x -1.

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Answer:

The prime factorization of 54 = 2 × 3 × 3 × 3 = 2 × 3.

Step-by-step explanation:

Factor 54 into two numbers, then factor each of those factors as much as possible until you can't factor a number.

54

=  = ( 9 ) ⋅ ( 6 )  

= ( 3 ⋅ 3 ) ⋅ ( 2 ⋅ 3 )

This is the prime factorization of 54.

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

Quadrant IV

Step-by-step explanation:

If x is greater than 0, then it will remain on the right side, on quadrants I and IV. If y is less than 0, then it will be on the bottom, so we are left with quadrant IV:

x is greater than 0, so all possible values are positive

y is less than 0, so all possible values are negative

(x,-y)

Following are the description of the wrong choice:

That's why the "Quadrant IV" is the correct answer.

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Yes, the chain rule in calculus involves multiplying the derivative of the outside function by the derivative of the inside function.

The chain rule is a fundamental concept in calculus that allows us to find the derivative of a composite function. When a function is composed of two or more functions nested inside each other, the chain rule enables us to differentiate the composite function by taking into account the derivatives of the individual functions.

Mathematically, if we have a composite function f(g(x)), where g(x) represents the inside function and f(u) represents the outside function, the chain rule states that the derivative of the composite function is given by the product of the derivative of the outside function f'(u) and the derivative of the inside function g'(x). In other words, it is the prime of the outside function multiplied by the prime of the inside function.

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The average value of the function f(x) = (x + 2) on the interval [0, 3] is 7/2.

Calculate the definite integral of the function over the interval [a, b], then divide it by the interval's length (b - a), in order to determine the average value of a function f(x) over the interval.

Given that the interval is [0, 3] and the function f(x) = (x + 2), we have:

= (1/3) × [1/2 x² + 2x] evaluated from x=0 to x=3

= (1/3) × [(1/2 × 3² + 2×3) - (1/20² + 20)]

= (1/3) × [(9/2 + 6) - 0]

= (1/3) × (21/2)

= 7/2

Therefore, the average value of the function f(x) = (x + 2) on the interval [0, 3] is 7/2.

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The length of the transformed line segment XY after rotating 90 degrees counterclockwise about the origin is 4 units.

We have to find the length of the transformed line segment XY after rotating 90 degrees counterclockwise about the origin

We can use the distance formula.

Distance=√(x₂-x₁)²+(y₂-y₁)²

Given the endpoints X(-5, -3) and Y(-1, -3)

let's calculate the distance between them.

Distance = √((-1 - (-5))^2 + (-3 - (-3))^2)

= √(4^2 + 0^2)

= √(16 + 0)

= √16

= 4

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Answer:

$16

Step-by-step explanation:

she has $14 now

her parents let her earn 6

so $14 - $6 = $8

so thats what was left over from her allowance. she spent half of her allowance to get to $8 so you double the money

$8 * 2 = $16

$16 is her weekly allowance

Answer:

48160

Step-by-step explanation:

#5

Since the elevation of the picture is

We need to change it in decimal, then divide the numerator of the fraction by the denominator of the fraction

Then the elevation in decimal is

Answer:

a. \( \\ \mu = 0\) and \( \\ \sigma = 1\)

b. A bell-shaped curve (see the below graph).

c. \( \\ P(Z<1.2) = 0.88493\)

d. \( \\ P(Z<-1.64) = 0.05050\)

e. \( \\ P(Z>-1.39) = 0.91774\)

f. \( \\ P(-0.45< Z <1.96) = 0.64864\)

g. \( \\ P(Z<1.015 = 0.845)\), c = 1.015.

h. \( \\ P(Z>-1.015 = 0.845)\), c = -1.015.

i. \( \\ P(-1.422 < Z < 1.422) = 0.845\)

Step-by-step explanation:

Z is a random variable and is a standardized value or a z-score. The formula for it is as follows:

\( \\ Z = \frac{X - \mu}{\sigma}\) [1] (represented as a random variable)

\( \\ z = \frac{x - \mu}{\sigma}\)  [2] (represented as realizations of the random variables or values taken by the random variable Z.)

Where

Z follows a standard normal distribution (see formula [3]), which is a normal or Gaussian distribution with \( \\ \mu = 0\) and \( \\ \sigma = 1\). It is symmetrical at

\( \\ Z \sim N(0,1)\) [3]  

Finding probabilities using the standard normal table

We can use the standard normal distribution to find all probabilities related to Z, and there exists the standard normal table, available in any Statistics books or on the Internet.

We need to consult the standard normal table, use the first two values for Z, that is, in the case of 1.64, we use 1.6 as an entry. We find this value in its first column, and then, using the first row of the table, we localize the remaining 0.04. The intersection of these two values "gives us" the cumulative probability from \( \\ -\infty\) to the value z = 1.64.

Notice that negative values for z-scores are below the mean, whereas positive values represent z-scores above \( \\ \mu\).

Answering the questions

a. What is the mean and standard deviation for Z?

As we discuss before, the mean and the standard deviation are, respectively, \( \\ \mu = 0\) and \( \\ \sigma = 1\).

b. Sketch the distribution.

We can sketch it as a normal or Gaussian distribution, that is, a bell-shaped curve, symmetrical at \( \\ \mu =0\), with most values near the mean and less at each end of the distribution. See the below graph.

c. Find P(Z <1.2)

Following the explained procedure above, we can obtain the cumulative probability for \( \\ P(Z<1.2)\):

In the first column, we localize z = 1.2. At the first row, we localize the value 0.00 (since z = 1.2 = 1.20). Notice that this value is above the mean (positive).

Then, the asked probability is \( \\ P(Z<1.2) = 0.88493\).

d. Find P(Z < −1.64)

The values less than z = -1.64 are below the mean, and we have for the first column z = -1.6 and for the first row -0.04. Then

\( \\ P(Z<-1.64) = 0.05050\)

e. Find P(Z > −1.39)

In this case, we need to recall that

\( \\ P(Z<a) + P(Z>a) = 1\)

For any positive or negative value of a. Then

\( \\ P(Z<-1.39) + P(Z>-1.39) = 1\)

Thus

\( \\ P(Z>-1.39) = 1 - P(Z<-1.39)\)

\( \\ P(Z>-1.39) = 1 - 0.08226\)

\( \\ P(Z>-1.39) = 0.91774\)

f. Find P(−0.45 < Z <1.96)

In this case, we need to find \( \\ P(Z<1.96) - P(Z<-0.45)\). Then

\( \\ P(Z<1.96) = 0.97500\)

\( \\ P(Z<-0.45) = 0.32636\)

Therefore

\( \\ 0.97500 - 0.32636\)

\( \\ 0.64864\)

Then, \( \\ P(-0.45< Z <1.96) = 0.64864\).

g. Find c such that P(Z < c) = 0.845

In this case, find the cumulative probability, 0.845, and the corresponding value for z.

This value is between z-scores (z = 1.01 and z = 1.02). The standard normal table cannot give us values for z with more than two decimal digits for z. We can overcome this using interpolation or technology, and this value will have a third digit for z. This value is approximately:

\( \\ P(Z<1.015 = 0.845)\), c = 1.015.

h. Find c such that P(Z > c) = 0.845

Because of the symmetry of the normal distribution:

\( \\ P(z<-a) = P(z>a)\) or

\( \\ P(z>-a) = P(z<a)\)

From the previous result (part g):

\( \\ P(Z<1.015 = 0.845)\)

Then

\( \\ P(Z>-1.015 = 0.845)\), c = -1.015.

i. Find c such that P(−c < Z < c) = 0.845

We can overcome using the symmetry of the normal distribution again, and we know that 0.845 is a value between -c and c. At both extremes of the distribution we have symmetrically the following probabilities:

\( \\ \frac{1 - 0.845}{2}\)

\( \\ \frac{0.155}{2}\)

\( \\ 0.07750\)

Then, we use

\( \\ P(z<-a) = P(z>a)\)

\( \\ P(z<-1.42) = P(z>1.42)\)

Then, approximately, c = 1.42 and -c = -1.42 or \( \\ P(-1.42 < Z < 1.42) = 0.845\). Using linear interpolation or technology, we can have a value of c = 1.422 and -c = -1.422.  

Without redefining any global objects, changing the definition of the exp y function, or creating new objects, you can calculate the fourth power of eleven using the exp y function by calling exp y(11), which will give you the result of 14641.

To calculate the fourth power of eleven using the expy function without redefining the global objects x or y, changing the definition of the expy function, or creating any new objects, you can follow these steps:

1. First, we need to understand the expy function. The expy function calculates the exponential value of the variable y. In this case, y represents the power to which we want to raise a number.

2. To calculate the fourth power of eleven, we can use the expy function with y set to 4 and the number 11 as the input. This can be done by calling the expy function with the value of 11 as the argument, like this: expy(11).

3. The expy function will then raise the input number (11) to the power of the variable y (4). In other words, it will calculate 11^4.

4. The result of the calculation will be the fourth power of eleven, which is 14641.

So, without redefining any global objects, changing the definition of the exp y function, or creating new objects, you can calculate the fourth power of eleven using the exp y function by calling exp y(11), which will give you the result of 14641.

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Coordinate of circumcenter of the given triangle = (3, 2)

What is circumcenter of a triangle?

Circumcenter of a triangle is the point of intersection of the perpendicular bisectors of every sides of the triangle.

Let the coordinate of circumcenter be (x , y)

Distance of Circumcenter from (4,2) =

\(\sqrt{(x - 4)^2 + (y-2)^2\)

Distance of Circumcenter from (3, 3) =

\(\sqrt{(x - 3)^2 + (y-3)^2\)

Distance of Circumcenter from (2,2) =

\(\sqrt{(x - 2)^2 + (y-2)^2\)

By the problem,

\(\sqrt{(x - 2)^2 + (y-2)^2} = \sqrt{(x - 3)^2 + (y-3)^2}\\(x - 2)^2 + (y-2)^2} = (x - 3)^2 + (y-3)^2}\\x^2 - 4x + 4 + y^2 -4y + 4 = x^2 -6x + 9 + y^2-6y + 9\\6x - 4x +6y -4y = 18-8\\2x +2y = 10\\x+ y = 5\\\)..... (1)

Again,

\(\sqrt{(x - 4)^2 + (y-2)^2} = \sqrt{(x - 3)^2 + (y-3)^2}\\(x - 4)^2 + (y-2)^2} = (x - 3)^2 + (y-3)^2}\\x^2 - 8x + 16 + y^2 -4y + 4 = x^2 -6x + 9 + y^2-6y + 9\\8x - 6x +4y -6y = 20-18\\2x -2y = 2\\x- y = 1\\\)...... (2)

Adding (1) and (2)

\(2x = 6\\x = \frac{6}{2}\\x = 3\)

Putting the value of x in (1),

3 + y = 5

y = 5 - 3

y  = 2

Coordinate of circumcenter = (3, 2)

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Answer:

$27,840 is the correct answer

Step-by-step explanation:

hope this helps!

Answer:

after a 4% decrease, you would have $27,260 left

Step-by-step explanation: