I need help fast please I need help:)

Answer:

Step-by-step explanation:

boody boody

Answer:

sorry dont know 4 or 5 8. 9 but

6. 4 %

7. 60%

Step-by-step explanation:

Answer:

english plz

Step-by-step explanation:

The sampling error or sampling variability is the discrepancy between the sample and group norms.

Among the most frequent kinds of sampling mistakes is sampling prejudice. When the sample's participants are not indicative of the general community, it happens. A poll has sampling bias if it only includes respondents from one region of the nation and does not include respondents from the other regions.

For instance, the mother, kids, or the complete family could be the populace in a poll on breakfast cereals. Selection Error: Occurs when respondents self-select their involvement in the poll, suggesting that only the people who are eager are participating.

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Oliver needs to earn $55 from lifeguarding to balance his budget for June.

To balance his budget, Oliver needs to make sure that his total income matches his total expenses. From the given table, we can see that the total expenses for June are:

Expenses

Amusement park: $85

Giving to charity: $20

Saving for a new skateboard: $10

Total: $115

And his total income so far is:

Income

Lifeguarding: $0

Allowance: $20

Pet sitting: $40

Total: $60

To find out how much he needs to earn lifeguarding to balance his budget, we can use the equation:

Income = Expenses

Substituting the values we have, we get:

0 + 20 + 40 + Lifeguarding = 85 + 20 + 10

Simplifying and solving for Lifeguarding, we get:

Lifeguarding = 85 + 20 + 10 - 20 - 40

= $55

Therefore, Oliver needs to earn $55 from lifeguarding to balance his budget for June. We can complete the table as follows:

Income

Lifeguarding: $55

Allowance: $20

Pet sitting: $40

Total: $115

Expenses

Amusement park: $85

Giving to charity: $20

Saving for a new skateboard: $10

Total: $115

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Approximate height to the statue's actual height of 120 feet, 3 inches from heel to top of head is 123.75 feet.

To estimate the height of the statue, the student can use the method of similar triangles. Since the length of the statue's right arm is 45 feet and the length of the student's right arm is 2 feet, the ratio of the lengths of the arms is 45/2 = 22.5. If we assume that the ratio of the heights of the statue and the student is also 22.5, then the height of the statue can be estimated as:

height of statue = height of student x ratio of heights

height of statue = 5.5 x 22.5

height of statue = 123.75 feet

This estimated height of the statue is close to the actual height of 120 feet, 3 inches. It should be noted that this method of estimation assumes that the ratio of the heights of the statue and the student is the same as the ratio of the lengths of their arms. This may not be completely accurate, as the proportions of the statue and the student may be different.

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The ratio of the edge length of the large cube (8 cm) to the small cube (2 cm) can be written as 8:2 or 4:1.

Comparing two or more related quantities using a ratio typically involves using a fraction or decimal. Ratios are used to evaluate relationships between two or more things or to compare values.

To calculate this ratio, we divide the length of the large cube (8 cm) by the length of the small cube (2 cm). The result is 4, which is the first number in the ratio. The second number in the ratio is the number we divided by, which is 1. Therefore, the ratio of the edge length of the large cube to the small cube is 4:1.

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Answer:

Yes

Step-by-step explanation:

Let's pick 2 bionomials for this proof.

(3x+4) and (2x-4)

If we subtract (2x-4) from (3x+4) we will be left with x to the first power, which is a monimal.

So yes, you can subtract a binomial from another binomial and get a monomial.

Hope this helps!

Given:

In a right angle triangle θ is an acute angle and \(\tan\theta =\dfrac{3}{5}\).

To find:

The value of \(\cos \theta\).

Solution:

In a right angle triangle,

\(\tan \theta=\dfrac{Perpendicular}{Base}\)

We have,

\(\tan\theta =\dfrac{3}{5}\)

It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.

By using Pythagoras theorem,

\(Hypotenuse=\sqrt{Perpendicular^2+base^2}\)

\(Hypotenuse=\sqrt{(3x)^2+(5x)^2}\)

\(Hypotenuse=\sqrt{9x^2+25x^2}\)

\(Hypotenuse=\sqrt{34x^2}\)

\(Hypotenuse=x\sqrt{34}\)

In a right angle triangle,

\(\cos \theta=\dfrac{Base}{Hypotenuse}\)

\(\cos \theta=\dfrac{5x}{x\sqrt{34}}\)

\(\cos \theta=\dfrac{5}{\sqrt{34}}\)

Therefore, the value of \(\cos \theta\) is \(\dfrac{5}{\sqrt{34}}\).

It will take 8 days for the average charge per day for company a to be the same as the average charge per day for company b.

The charges incurred by these companies are given by the word expression -

Total charge = Service fee + Fee per day. Equating the expressions by keeping values of both companies. Let us represent each day by z.

80 + 22x = 0 + 32x

Rewriting the equation

32x - 22x = 80

Performing subtraction on Left Hand Side of the equation

10x = 80

Shifting 10 to Right Hand Side of the equation

x = 80/10

Performing division on Right Hand Side of the equation x = 8

On eight days, the charge will be equal.

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If you calculate SLE to be $25,000 and that there will be one occurrence every four years (ARO), then the ALE is $40,000.

A expected monetary decline each moment an asset is at risk is referred to as single-loss expectancy (SLE). It is a term that is most frequently used during risk analysis and attempts to assign a monetary value to each individual threat.

Quantitative risk analysis predicts the likelihood of certain risk outcomes as well as their approximate monetary cost using relevant, verifiable data.

IT professionals must consider a wide range of risks, including the following:

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The adult weight of the puppy calculated using percentage is 45 pounds .

In mathematics, a value or ratio that can be expressed as a simple fraction of 100 is known as a percentage.

When determining a percentage of a number, we should first divide it by 100 before multiplying the result by 100.

As a result, the proportion refers to a component per 100. The word percent denotes a percentage of 100.

It is represented by the symbol "%." Percentages can also be written as decimals or fractions, like in 0.6%, 0.25%, etc.

Academic grades are calculated using percentages for every subject. Ram, for example, received a 78% on his qualifying exam.

The weight of the puppy is 9 pounds.

This is 20% of the adult weight.

Let the adult weight be x.

therefore 20% of x = 9

Calculating we get  x = 45 pounds

Hence the adult weight of the puppy is 45 pounds.

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Based on the theory, the distance from the starting point to the return point = Arc length = 109.9 feet.

Using the formula for arc length, it is possible to determine the length of an arc that contains a circle by providing the radius and the central angle.

AL = ∅/360 × 2πr

Considering that the new area is a quarter circle in shape, then ∅ = 90°.

Raidus (r) = 70 ft

The distance between the point of departure to the place of departure again= arc length.

Al = ∅/360 × 2πr =  90/360 × 2π(70)

Al =  109.9 feet

In conclusion, According to the hypothesis, the distance from the point of departure to the point of arrival is equal to the length of the arc, which is equal to 109.9 feet.

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CQ

The figure below shows the ideal pattern of movement of a herd of cattle, with the arrows showing the movement of the handler as he moves the herd. The arc the handler makes from the starting point to the return point should be a quarter of a circle: A sector showing a quarter of a circle is drawn. The radius is marked as 70 feet. The endpoints of the arc of the sector are marked as Starting Point and Return Point. The sector is filled with cattle. Based on this theory, what distance will the handler move from the starting point to the return point if he creates an arc of a circle with radius 70 feet? 439.6 feet 3846.5 feet 109.9 feet 1758.4 feet

The length and breadth(width) of the pool are

\(l\approx15.7m\text{ and }b\approx7.7m\)

Let

\(l=\text{length of the side of the pool}\\b=\text{breadth of the pool side}\\w=\text{the width of the strip of deck surrounding the pool}\)

From the question, we can build the following relationships

\(l+2w=20\\b+2w=12\)

subtracting to eliminate \(w\) (we do not even need it!)

\(l-b=8\\b=l-8\)

we can also build another relationship from the question. Since the area of the strip equals the area of the pool:

\(lb+lb=2lb=20\times 12\\lb=120\)

We have two unknowns, \(l\) and \(b\). Eliminate \(b\)

\(lb=120\\l(l-8)=120\\l^2-8l-120=0\)

If we solve the quadratic equation for \(l\), we get

\(l=4+2\sqrt{34}\approx 15.7m\)

and

\(b=l-8\\b=(4+2\sqrt{34})-8\\b=2\sqrt{34}-4\approx7.7m\)

The length and breadth(width) of the pool are

\(l\approx15.7m\text{ and }b\approx7.7m\)

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The proportion of the area under the curve that lies to the right of t = 2.015 in a t-distribution with 5 degrees of freedom can be calculated using the t-distribution function in a statistical software package such as R.

The answer is approximately 0.9522. This means that 95.22% of the area under the curve lies to the right of t = 2.015. This indicates that the probability of observing a value of t greater than 2.015 is quite high.

This is because the t-distribution with 5 degrees of freedom has a larger spread than the normal distribution, which means that the probability of observing values further from the mean is greater.

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Answer:

8: 14 is the prime number

9: 15 is the composite number

Step-by-step explanation:

I hope this helped :)

Answer:

PRIME: 2, 17, 19, 27, 27

COMPOSITE: 14, 15, 51

Step-by-step explanation:

Hope this helps:)

Answer:

5

Step-by-step explanation:

the greatest common factor of 50, 15, and 45 is 5

Given :

we need to find the greatest common factor of 50, 15, and 45

Lets write the prime factors for each number

Prime factors

\(50 =5 \cdot 5 \cdot 2\\15= 5 \cdot 3\\45= 3 \cdot 3\cdot 5\)

Now we look at the common factor for all the three numbers

Greatest common factor is 5

the greatest common factor of 50, 15, and 45 is 5

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The required (0,4) after dilation with a scale factor of 1/3  is (0, 4/3). Option C is correct.

The scale factor is defined as the ratio of the modified change in length to the original length.

here,
Since let the coordinate before dilation be (x, y),
Now when applying the scale factor to the coordinate, the transformation equation is given as,
(X, Y) = (sx , sy)  where s is the scale factor,

Since matching the above equation with the option,

(3.0) dilated by a scale factor of 1/3 a (0, 6) (False)
(3,4) dilated by a scale factor of 1/3 scale factor b (1,0)  (False)
(0,4) after dilation with a scale factor of 1/3 is  (0, 4/3)  (True)

Thus, the required (0,4) after dilation with a scale factor of 1/3  is (0, 4/3). Option C is correct.

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The expected value is 0.8, variance is 0.48, and standard deviation is 0.693 with the given probability.

a. The probability of getting one success in two trials with p=0.4 is given by the binomial probability formula:

f(1) = 2C1 * (0.4)^1 * (0.6)^1 = 0.48

b. The probability of getting zero successes is:

f(0) = 2C0 * (0.4)^0 * (0.6)^2 = 0.36

c. The probability of getting two successes is:

f(2) = 2C2 * (0.4)^2 * (0.6)^0 = 0.16

d. The probability of at least one success is:

P(at least one success) = 1 - P(no success)

= 1 - f(0)

= 1 - 0.36

= 0.64

e. The expected value of a binomial distribution with n trials and probability of success p is given by:

E(X) = np

In this case, n = 2 and p = 0.4, so:

E(X) = 2 * 0.4 = 0.8

The variance of a binomial distribution is given by:

Var(X) = np(1-p)

So:

Var(X) = 2 * 0.4 * 0.6 = 0.48

The standard deviation is the square root of the variance:

SD(X) = sqrt(Var(X)) = sqrt(0.48) = 0.693.

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Answer:

4.7 * 10 ^9

Step-by-step explanation:

4,700,000,000

Scientific notation is of the form

a * 10 ^b  where a is a number between 1 and less than 10

Move the decimal so that it is a number between 1 and less than 10

4,700,000,000  becomes 4.700000000  and we moved the decimal 9 places to the left  b is +9  ( positive because we moved to the left)  We can drop the extraneous zeros

4.7 * 10 ^9

Statement 1, BD ≅ SD and ED ≅ TD would not be sufficient to prove quadrilateral BEST is a parallelogram.

A quadrilateral is a parallelogram if it satisfies any of the following conditions: Opposite sides are parallel and congruent, Opposite angles are congruent, Diagonals bisect each other. If a quadrilateral satisfies any of these conditions, it is a parallelogram.

Although BD ≅ SD and ED ≅ TD indicate that the diagonals bisect each other, it does not necessarily mean that the opposite sides are parallel. For example, a kite has diagonals that bisect each other but its opposite sides are not parallel.

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\( \cos(x) = \frac{b}{h} \\ \cos(x) = \frac{4 .9}{6.8} \\ \cos(x) = 0.720 \\ x = \cos^{ - 1} (0.720) \\ x = 44 \degree\)

Answer:

x ≈ 44°

Step-by-step explanation:

        We will use a trigonometry function to solve for x. We can see that we have values for the adjacent side and hypotenuse. This means we will be using cosine. Cosine is \(\frac{adjacent }{hypotenuse}\)

cos(x) =  \(\frac{adjacent }{hypotenuse}\)        [Given]

cos(x) =  \(\frac{4.9}{6.8}\)                   [Plug-in the values we have]

x ≈ 43.8969                 [Find the inverse cosine function of both sides]

x ≈ 44°                          [Rounding to nearest degree]

The inverse of the function for  \(g^{}(x) = \frac{x^{3} }{8}+16\)  is  \(g^{-1}(x)=2\sqrt[3]{x-6}\)

"The inverse function of a function f (also called the inverse of f ) is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by  \(f^{-1}\)."

We have

\(g^{}(x) = \frac{x^{3} }{8}+16\)

Replace g(x) with y

\(y =\) \(\frac{x^{3} }{8}+16\)

Interchange the variables

\(x= \frac{y^{3} }{8}+16\)

Rewrite the equation as

\(\frac{y^{3} }{8}+16= x\)

⇒\(\frac{y^{3} }{8}= x-16\)

Multiply both sides of the equation by 8

\(8.\frac{y^{3} }{8}=8(x-16)\)

⇒\({y^{3} }=8(x-16)\)

⇒\({y^{3} }=8x-128\)

⇒\({y} }=\sqrt[3]{8x-128}\)

⇒\({y} }=2\sqrt[3]{x-6}\)

Replace y with \(g^{-1}(x)\)

⇒\(g^{-1}(x)=2\sqrt[3]{x-6}\)

Hence, The inverse of the function for  \(g^{}(x) = \frac{x^{3} }{8}+16\) is  \(g^{-1}(x)=2\sqrt[3]{x-6}\)

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The error in finding the measure of one exterior angle of a regular polygon lies in using the formula 360°/n, where n is the number of sides of the polygon.

The formula 360°/n is used to find the measure of each exterior angle of a regular polygon. It is based on the idea that the sum of all exterior angles of any polygon is always 360 degrees. However, this formula assumes that the polygon has internal angles of 180°, which is true only for regular polygons.

The error occurs when this formula is applied to a non-regular polygon, as non-regular polygons have varying internal angles. Using the formula 360°/n for a non-regular polygon will give incorrect results because the internal angles are not all equal.

For regular polygons, each exterior angle is indeed 360°/n, and the sum of all exterior angles will be 360 degrees. However, for non-regular polygons, this formula cannot be used, and the measures of exterior angles must be calculated differently based on their internal angles and sides.

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The error in finding the measure of one exterior angle of a regular polygon is they divided 360 by 10 instead of 5.

Given that,

There are a total of 10 exterior angles, two at each vertex, so the measure of one exterior angle is 360°/10 = 36°.

Here, at each vertex there are two angles.

So, there must be 5 vertices and 5 sides.

Then, the measure of one exterior angle = 360°/5

= 72°

Therefore, the error in finding the measure of one exterior angle of a regular polygon is they divided 360 by 10 instead of 5.

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"Your question is incomplete, probably the complete question/missing part is:"

Describe and correct the error in finding the measure of one exterior angle of a regular polygon. There are a total of 10 exterior angles, two at each vertex, so the measure of one exterior angle is 360°/10 = 36°.

Answer:

also click the first choice. It has 10 sides.

Step-by-step explanation:

1440=(N-180)-360

N-180=1080

n=10 sides

Answer: The answers would be A

Step-by-step explanation- The sum of all angles in a decagon will always equal 1440 degrees. That is all. Plz mark brainliest?

Answer:

Step-by-step explanation:

are the what???

Answer:

False

Step-by-step explanation: