Can someone help me I’m doing a khan academy and need help ASAP marking brainliest

Answer:

The pattern is min-zero-max-zero-min, which is the pattern for a cosine function of the form y = acos(x) + k, but is reflected over the x-axis (so a < 0).

The amplitude is |a|, so a = –1 and |a| = 1.

The midline is exactly between the max and the min, y = (6 + 8)/2 = 7, so k = 7.

The equation is y = –cos(x) + 7.

Step-by-step explanation:

answer on edge 2022

The given graph equation of the function is; y = -1cos(x) + 7 where a = -1 and k = 7

The given points to be plotted are;

(0,6), (π/2,7), (π, 8), (3π/2, 7) and (2π, 6a)

Now, If we graph these points, it is noticed that the function is a cosine function. Since the function does not pass through the origin, it means that it will have a y-intercept equal to 6.

The general equation for a cosine function is;

y = acos(x) + k

The midline is exactly between the maximum and the minimum point and so it is;

y = (6 + 8)/2

y = 7, so k = 7.

a is the amplitude and since it is reflected over the x-axis, then it means that a = -1. Thus;

y = -1cos(x) + 7

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The three angle bisector of a triangle intersect at a single point that point of concurrency of the angle of bisectors is called the incenter.

Given:

the 3 angle bisectors of a triangle intersect.

when three angle bisector of a triangle intersect then that point of concurrency is called incenter.

Incenter:

The incenter of a triangle is the intersection point of all the three interior angle bisectors of the triangle. In other words, it can be defined as the point where the internal angle bisectors of the triangle cross. This point will be equidistant from the sides of a triangle, as the central axis’s junction point is the center point of the triangle’s inscribed circle.

Incenter formula:

= (ax1+bx2+x3 / a+b+c  , ay1+by2+y3 / a+b+c).

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Answer:B. Mia needs to subtract another 6 square feet.

Step-by-step explanation:

Answer:

yeah the dude above me is right

Step-by-step explanation:

b r u h moment compilation #27

Answer:

The vertex of g(x) is (6,3).

Step-by-step explanation:

Quadratic Function

The vertex form of the quadratic function has the following equation:

\(y=a(x-h)^2+k\)

Where (h, k) is the vertex of the parabola that results when plotting the function, and a is the leading coefficient.

We know a quadratic function y=f(x) is represented by a parabola whose vertex is at (3,-3). Substituting in the equation:

\(y=a(x-3)^2-3\)

The function g(x) is defined as:

\(g(x)=-f(x-3)\)

Substituting f(x):

\(g(x)=-[a(x-3-3)^2-3]\)

Operating:

\(g(x)=-a(x-6)^2+3\)

This function is represented by a parabola with its vertex at (6,3).

The vertex of g(x) is (6,3).

Original Cost - $82

First part: Apply the 60% off discount

Convert first the 60% into decimal form

60% ÷ 100% = 0.6

Multiply it to the original cost to determine the discount

$82 ˣ 0.6 = $49.2

Subtract the discount to the original price, to determine the discounted price.

$82 - $49.2 = $32.8

Second part:

The discounted price is now $32.8 for which we will apply another 10% discount.

Again, convert 10% into decimal

10% ÷ 100% = 0.1

Multiply it to the discounted price, to determine the second discount.

$32.8 ˣ 0.1 = $3.28

Subtract the discount to the already discounted price.

$32.8 - $3.28 = $29.52

Therefore, the final sale price of the watch is at $29.52.

The result of executing the given code is (B) an array of 6 values, ranging from 0 through 5, will be created and referenced by the variable x.

The code `int[] x = {0, 1, 2, 3, 4, 5};` is initializing an array of integers named `x`. The values inside the curly braces represent the elements of the array. In this case, the values are 0, 1, 2, 3, 4, and 5.

Option (A) is incorrect because the values in the array are not all initialized to 0. Instead, each value corresponds to its respective position in the array.

Option (C) is also incorrect because the variable `x` does not directly store the values 0 through 5. Instead, `x` is a reference to the array that contains those values.

Option (D) is not applicable as the code provided is syntactically correct and will not result in a compiler error.

Therefore, the correct answer is (B) - an array of 6 values, ranging from 0 through 5, will be created and referenced by the variable `x`.

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Answer:

angle ABC is a straight angle or, 180°

A major disadvantage of correlations is that they cannot make a cause-and-effect statement.

Correlations are statistical measures that describe the size and direction of a relationship between variables.

Correlations are expressed as numbers. Correlations establish that relationships exist but do not explain if the change in one variable is caused by the change in another variable's value.

The disadvantages of correlations include:

Thus, a major disadvantage of correlations is that they cannot make a cause-and-effect statement.

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We are given the following function:

We are asked to determine the codomain of the function. We need to have into account that the range and the codomain are two different but similar concepts.

The range is the values that he functions outputs and the codomain is the set of the possible values of the function.

In this case, we have a function that takes real values and outputs real values, therefore, the codomain is the set of the real numbers, this is written as:

Answer:

A, C and D

Step-by-step explanation:

both A, C and D are both porportions because they both equal the other fraction.

Answer:

1, 3, 4

Step-by-step explanation:

i had this on my test- im doing it rn.

All the correct values for triangles are,

∠ A = ∠ Z

∠ B = ∠ Y

∠ C = ∠X

AB ≅ XZ

AC ≅ ZY

CB ≅ XY

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The triangles below are congruent and their corresponding parts are marked.

Hence, By deifnition of similarity,

Their corresponding sides and angles are equal.

Hence, We get;

All the correct values for triangles are,

∠ A = ∠ Z

∠ B = ∠ Y

∠ C = ∠X

AB ≅ XZ

AC ≅ ZY

CB ≅ XY

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Answer:

7.00

Step-by-step explanation:

Given that:

Price after reduction  = 5.60

so, 80% = 5.60

we have to calculate 1005.

To do so, find 10% and multiply it by 10.

80% = 5.60

10% = 5.60/8 = 0.70

So, 100% = 7.00

Hope this helps.

Good Luck.

Please Mark Brainiest

There is no specific value of ‘a’ that will determine the absolute maximum of g(x) within the interval (0,5). The maximum will occur either at x = 0 or x = 5, depending on the specific value of ‘a’ chosen.

To find the value of ‘a’ for which the function g(x) = x * e^(a-1) attains its absolute maximum on the interval (0,5), we need to analyze the behavior of the function and determine the critical points.

First, let’s take the derivative of g(x) with respect to x:

G’(x) = e^(a-1) + x * e^(a-1)

To find the critical points, we set g’(x) equal to zero and solve for x:

E^(a-1) + x * e^(a-1) = 0

Factoring out e^(a-1), we have:

E^(a-1) * (1 + x) = 0

Since e^(a-1) is always positive, the only way for the expression to be zero is when (1 + x) = 0. Solving for x, we find:

X = -1

However, the interval given is (0,5), and -1 is outside that interval. Therefore, there are no critical points within the interval (0,5).

This means that the function g(x) = x * e^(a-1) does not have any maximum or minimum points within the interval. Instead, its behavior depends on the value of ‘a’. The absolute maximum will occur at one of the endpoints of the interval, either at x = 0 or x = 5.

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The value of the function at x = -3, -2, 0, 1, and 5 will be -7, -5, -1, 1, and 9, respectively.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The function is given below.

f(x) = 2x - 1

The value of the function at x = - 3 will be

f(-3) = 2(-3) - 1

f(-3) = - 6 - 1

f(-3) = - 7

The value of the function at x = - 2 will be

f(-2) = 2(-2) - 1

f(-2) = - 4 - 1

f(-2) = - 5

The value of the function at x = 0 will be

f(0) = 2(0) - 1

f(0) = 0 - 1

f(0) = - 1

The value of the function at x = 1 will be

f(1) = 2(1) - 1

f(1) = 2 - 1

f(1) = 1

The value of the function at x = 5 will be

f(5) = 2(5) - 1

f(5) = 10 - 1

f(5) = 9

The value of the function at x = -3, -2, 0, 1, and 5 will be -7, -5, -1, 1, and 9, respectively.

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Answer:

30). 68°

31). 35.5°

Step-by-step explanation:

Question (30).

If WZ is the angle bisector of ∠XWY.

∠XWZ ≅ ∠YWZ

Therefore, measure of both the angles will be equal.

m∠XWZ ≅ m∠YWZ = 68°

and m∠XWY = 2(68°) = 136°

Question (31)

If WZ is an angle bisector of ∠XWY,

∠XWZ ≅ ∠YWZ

Therefore,

m∠XWZ = m∠YWZ = \(\frac{1}{2}(m\angle XWY)\)

m∠XWZ = m∠YWZ = \(\frac{1}{2}(71)\)

m∠XWZ = m∠YWZ = 35.5°

Answer:

576

Step-by-step explanation:

4x16=64

64x9=576

The greatest weight is weight H that weighs 0.5 tons.

The given weights have different measurements. In order to determine the greatest weight, convert all the weights to ounces.

Weight F to tons:

1 ton = 32,000 ounces

0.25 x 32,000 = 8000 ounces

Weight H to ounces:

1 ton = 32,000 ounces

0.5 x 32,000 = 16,000 ounces

Weight J to ounces :

1 pound = 16 ounces

600 x 16 = 9,600 ounces

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The sequence aₙ = sin (4n)/2n + √n diverges because it does not have a limit that can be expressed in a finite manner.

A sequence is a set of numbers that follow a certain pattern. The behavior of the sequence as n approaches infinity determines whether the sequence converges or diverges.

In this case, the sequence

=> aₙ = sin (4n)/2n + √n.

To determine whether the sequence converges or diverges, we need to find the limit as n approaches infinity.

However, in this case, the limit as n approaches infinity is DNE, meaning it does not exist. This means that the sequence diverges, as it does not approach a limit as n approaches infinity.

In this case, the sequence

=> aₙ = sin (4n)/2n + √n

converges to DNE, meaning that it does not have a limit that can be expressed in a finite manner.

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Answer:

big bodie built

Step-by-step explanation:

i used to be dusty

Based on the calculations, the value of the given prefix expression is equal to 2205.

The preorder traversal of a tree (T) are typically used in discrete mathematics to determine the value of a prefix expression on a specific expression tree.

For the preorder traversal of this tree (T), we would start from the right most expression:

Prefix expression = * + 3 + 3 ↑ 3 + 3 3 3

Prefix expression = * + 3 + 3 ↑ 3 6 3

Prefix expression = * + 3 + 3  3⁶  3

Prefix expression = * + 3 3 729 3

Prefix expression = * + 3 732 3

Prefix expression = * 735 3   ⇒ 735 × 3

Value = 2205.

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Complete Question:

Given the following prefix expression:

* + 3 + 3 ↑ 3 + 3 3 3

What is the value of the prefix expression?

The best equation that approximates the probability that at least 27 percent of the children in the sample live in households that are classified at a particular income level is \(p(z > \frac{0.27-0.22}{\frac{\sqrt{0.22*0.78} }{300} })\) .

Given:

Probability of children who live in households with incomes that are classified at a particular income level,p = 22/100 = 0.22

Number of children in a simple random sample,n = 300

Probability of children who do not live in households with incomes that are classified at a particular income level, q = 1-p = 0.78

The probability of children in the sample living in households that are classified at a particular income level,p₁ = 27/100 = 0.27

Now, we know

\(p(z > \frac{p_{1} -p}{\frac{\sqrt{p.q} }{n} } )\)

So,

\(p(z > \frac{0.27-0.22}{\frac{\sqrt{0.22*0.78} }{300} })\)

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To form a triangle, the set of line segments must satisfy the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. Therefore, we need to check if the given line segments 8 cm, 4 cm, and 3 cm meet this requirement.

We can start by checking if the sum of the two smaller sides (3 cm and 4 cm) is greater than the largest side (8 cm). 3 cm + 4 cm = 7 cm, which is less than 8 cm. Therefore, these three line segments cannot form a triangle.

In general, for a set of line segments to form a triangle, the largest side must be smaller than the sum of the other two sides. In this case, the line segment of 8 cm is too long compared to the other two sides, which makes it impossible to form a triangle.

In conclusion, there are no line segments that meet the requirements to form a triangle with lengths of 8 cm, 4 cm, and 3 cm.

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Answer:

X >  -3, 0.28, 4

Step-by-step explanation:

x - 7 >  -12 - To solve add 7 to both sides

x > -5 Which means every number GREATER but not EQUAL to 5 will count as a solution to the equation, therefore 5 is not a correct answer. -3 is greater then -5, and any positive number is greater then any negative number.

Therefore the Correct Answer is : -3. 0.28, 4

Total number of articles = 60

CP of each article = Rs. 150

Price at which he sell the remaining so as to to gain 10% on the whole deal.​

CP of 60 articles = 150 * 60 = Rs. 9000

1/3 of the articles are sold at Loss of 6%.

1/3 of articles = 1/3 * 60 = 20

⟹ CP of 20 articles = 20 * 150 = Rs. 3000

We know that,

SP = (100 - loss%)/100 * CP

⟹ SP of 20 articles = (100 - 6)/100 * 3000

⟹ SP of 20 articles = 94 * 30

⟹ SP of 20 articles = Rs. 2820

Also given that,

Total gain% = 10%

Gain% = Gain/CP * 100

⟹ 10 = Gain/9000 * 100

⟹ 10 * 9000 * 1/100 = Gain

⟹ Rs. 900 = Gain

We know,

Gain = Total SP - Total CP.

We have:

Total SP = SP of 20 articles + SP of 40 articles.

Total CP = CP of 60 articles = 9000.

So,

⟹ 900 = 2820 + SP of 40 articles - 9000

⟹ 900 - 2820 + 9000 = SP of 40 articles

⟹ Rs. 7080 = SP of 40 articles

∴ The remaining articles should be sold for Rs. 7080 to gain 10% on the whole transaction.

I hope it will help you.

Regards.

Answer:

→ 11(2 + y) + 11y

→ 22 + 11y + 11y = 154

→ 22y + 22 = 154

→ 22y = 154 - 22

→ 22y = 132

→ y = 132/22

→ y = 6

Step-by-step explanation:

Answer:

12 and 30

Step-by-step explanation:

so they could be 2×2×3 = 12 and 2×3×5 = 30

The percentage of pupils that miss class each day is the most appropriate indicator to track with a p chart. P charts are a specific kind of control chart used to track the percentage of nonconforming products produced over time in a process.

It is frequently applied to attribute data, where the data can be categorised as conforming or nonconforming depending on particular standards.The percentage of pupils that skip class daily in the given alternatives can be categorised as either a conforming (present) or nonconforming (missing) feature. We can track the variation in absenteeism and see any patterns or trends that might need attention or intervention by using a p chart to track the percentage of pupils who are missing over time.

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The estimated probability of Kelly double faulting on her next serve would be (600 + 300) / 1000 = 0.9 or 90%.

To design a simulation using a random number generator to estimate the probability that Kelly double faults on her next serve, we can follow these steps:

1. Determine the probability of Kelly double faulting on her first serve:
  - Given that her first serve percentage is 40%, the probability of Kelly landing her first serve "in" is 0.40.
  - Therefore, the probability of Kelly double faulting on her first serve is the complement of 0.40, which is 1 - 0.40 = 0.60.

2. Determine the probability of Kelly double faulting on her second serve:
  - Given that her second serve percentage is 70%, the probability of Kelly landing her second serve "in" is 0.70.
  - Therefore, the probability of Kelly double faulting on her second serve is the complement of 0.70, which is 1 - 0.70 = 0.30.

3. Use a random number generator to simulate the serve:
  - A random number generator can be used to generate a random number between 0 and 1.
  - If the generated random number is less than or equal to 0.60, it represents Kelly double faulting on her first serve.
  - If the generated random number is greater than 0.60 but less than or equal to 0.90, it represents Kelly double faulting on her second serve.
  - If the generated random number is greater than 0.90, it represents Kelly successfully landing her serve "in".

4. Repeat the simulation multiple times:
  - By repeating the simulation multiple times, we can obtain an average probability of Kelly double faulting on her next serve.

For example, if we repeat the simulation 1000 times, and Kelly double faults on her first serve in 600 instances and on her second serve in 300 instances, the estimated probability of Kelly double faulting on her next serve would be (600 + 300) / 1000 = 0.9 or 90%.

Remember, this is just an estimation based on the provided percentages and random number generation. The actual probability may vary in real-life situations.

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Answer:

1800e^7f^3

Step-by-step explanation:
I'm assuming you mean (45e^6)(8f)(5ef^2)

we can simplify this into 45e^68f5ef^2 because of the commutative and associative properties. Then we can simplify into (45 * 8 * 5 ) into 1800. Then by combining like terms we can change e^6 f e f&2 into e^7 f^3 which added together with 1800 gives you the answer.

hope this helped!

The 88th percentile of the population is 68.5, rounded to one decimal place.

To find the 88th percentile of a normal distribution with mean 58 and standard deviation 9, we can use the TI-84 Plus calculator as follows:

The result is approximately 68.5. Therefore, the 88th percentile of the population is 68.5, rounded to one decimal place.

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