PLS SOMEONE HELP I DO NOT UNDERSTAND PLS AND TY ASAP PLS PLS I WILL GIVE BRAINLIST AND PLS DONT BE A BOT

The work done by a force can be calculated by taking the dot product of the force vector with the displacement vector whether the force and displacement vectors are consecutive or anti-congruent.

The formula of the dot product is-

A ⋅ B = |A| |B| cos(θ)

Here A and B are the vectors  |A| and |B| which represent their magnitudes, and θ is the angle between them.

The angle between the force and displacement vectors is either 0 degrees (cos(0) = 1) or 180 degrees (cos(180) = -1) depending on whether they are parallel or antiparallel. The dot product becomes: in these circumstances.

A ⋅ B = |A| |B| (1) = |A| |B| (cos(0)) = |A| |B|

When the vectors are parallel or antiparallel, the angle is 0 or 180 degrees, respectively, and the cosine term is 1 or -1. This occurs since work done is defined as the dot product of the force and displacement vectors multiplied by the cosine of the angle between them.

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It should be hung 4 1/16 feet (Measurement unit) from each side of the wall.

what are measurement units(e.g. feet)?

Finding a number that represents the amount of something is what measurement is all about. A measuring unit is a unit of measurement that is used to express a physical quantity.

There are 7 measurement SI-units and these are following

Let, the wall hanging should be hung d feet from each end of wall

therefore,

Length of wall hanging=2 7/8 feet

Length of wall= 11 feet

length left after hanging the wall hanging=11 - 2 7/8

=8 1/8 feet

hence d=(8 1/8)/2

d=4 1/16 feet (distance from each end of wall)

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Answer:

x = 62°

Step-by-step explanation:

the top-most angle in the top isosceles triangle must be 73° also

the third angle of the top isosceles triangle is (180 - 73 + 73) which is 34°

the left portion of the right angle must be 56°

you can find by using this equation:  x + x + 56 = 180

2x = 124

x = 62

In regression analysis, if the dependent variable is measured in dollars, the independent variable can be units.

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The shaded area under the probability curve for X = female wrist girth (cm) represents the probability of certain events related to the wrist girth. The interpretation of the shaded area depends on its location and the given statements.

         The shaded area under a probability curve represents the probability of an event occurring within a specific range. In this case, we are considering the female wrist girth (X) and its associated probability curve.

If the shaded area is to the right of 16 cm, we interpret it as the probability that a woman has a wrist girth larger than 16 cm.

If the shaded area represents a single point exactly at 16 cm, we interpret it as the probability that a woman has a wrist girth of exactly 16 cm.

If the shaded area is to the left of 16 cm, we interpret it as the probability that a woman has a wrist girth less than 16 cm.

However, without further information or a visual representation, it is difficult to determine the exact interpretation of the shaded area. The context and the specific statements provided would help clarify the intended meaning of the shaded area.

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There are 455 ways to choose a dozen donuts from the 15 available varieties with no restrictions. To determine the number of ways to choose a dozen donuts from 15 varieties with no restrictions, we can use the concept of combinations.

The number of ways to choose a dozen donuts from 15 varieties with no restrictions can be calculated using the combination formula. The formula for combinations is given by C(n, r) = n! / (r!(n-r)!), where n is the total number of items and r is the number of items to be chosen.

In this case, we have 15 varieties of donuts, and we want to choose 12 donuts. Applying the combination formula, we have C(15, 12) = 15! / (12!(15-12)!).

Evaluating this expression:

C(15, 12) = 15! / (12! * 3!) = (15 * 14 * 13 * 12!) / (12! * 3 * 2 * 1).

The factor of 12! cancels out in the numerator and denominator, leaving us with:

C(15, 12) = (15 * 14 * 13) / (3 * 2 * 1) = 455.

Therefore, there are 455 ways to choose a dozen donuts from the 15 available varieties with no restrictions.

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Answer:

domain expansion

Step-by-step explanation:

jujutsu kaisen brúh

Answer:

3

Step-by-step explanation:

When you add it up you get 3

Answer:

The answer is A, The cost of zero bags of caramel

Answer: y= 4x + 6 Not sure but hope this help

Step-by-step explanation:

Answer: (-3, 0)

Step-by-step explanation:

I am including a picture that explains. Hope this helps!

Answer:

\(90,000^{3}\) (90,000 cubed)

Step-by-step explanation:

150 x 30 x 20

Answer:

$1.85

Step-by-step explanation:

2.15

-1.30

--------

1.85

Answer:

12 miles

Step-by-step explanation:

Total miles = Length of trail ×

Number of times she rode

Total miles = 3 miles × 4 times

Total miles = 12 miles

Mika traveled a total of 12 miles.

Answer:

D. 8.5

Step-by-step explanation:

The full value of √8 is 8.48528137...

Hope this helped!

Answer:

Let me get my homie on here to help you.

Step-by-step explanation:

The orthogonal projection of vector y onto the span of u₁ and u₂ is \([-2, 2.1481, -8.7037]^T\).

To verify if {u₁, u₂} is an orthogonal set, we need to check if the dot product of u₁ and u₂ is zero.

Let's calculate the dot product:

u₁ · u₂ = (7 * 1) + (-1 * -1) + (-2 * 4) = 7 + 1 - 8 = 0

Since the dot product of u₁ and u₂ is zero, we can conclude that {u₁, u₂} is an orthogonal set.

Given:

y = \([-1, 2, -9]^T\)

u₁ = \([7, -1, -2]^T\)

u₂ = \([1, -1, 4]^T\)

Let's calculate the orthogonal projection:

Step 1: Calculate dot products:

y · u₁ = (-1 * 7) + (2 * -1) + (-9 * -2) = -7 - 2 + 18 = 9

y · u₂ = (-1 * 1) + (2 * -1) + (-9 * 4) = -1 - 2 - 36 = -39

Step 2: Calculate norm squared of u₁ and u₂:

||u₁||² = (7 * 7) + (-1 * -1) + (-2 * -2) = 49 + 1 + 4 = 54

||u₂||² = (1 * 1) + (-1 * -1) + (4 * 4) = 1 + 1 + 16 = 18

Step 3: Calculate the orthogonal projection:

Projᵤ(y) = ((y · u₁) / ||u₁||²) * u₁ + ((y · u₂) / ||u₂||²) * u₂

         = \((9 / 54) * [7, -1, -2]^T + (-39 / 18) * [1, -1, 4]^T\)

         = \([0.1667, -0.0185, -0.0370]^T + [-2.1667, 2.1667, -8.6667]^T\)

         = \([-2.0000, 2.1481, -8.7037]^T\)

Therefore, the orthogonal projection of vector y onto the span of u₁ and u₂ is \([-2, 2.1481, -8.7037]^T\).

Complete Question:

Verify that {\(u_1, u_2\)} is an orthogonal set, and then find the orthogonal projection of y onto Span{\(u_1,u_2\)}. \(y =[-1 2 -9]^T, u_1 = [7 -1 -2]^T, u_2 = [1 -1 4]^T\)

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The SQL aggregate function that gives the arithmetic mean for a specific column is `AVG()`.

SQL (Structured Query Language) aggregate functions are functions that operate on a set of values and return a single value as a result. These functions are used in SQL queries to perform calculations on groups of rows in a database table.

There are several common aggregate functions in SQL, including:

1. `COUNT()` - returns the number of rows in a table or the number of non-null values in a specific column.

2. `SUM()` - calculates the sum of values in a specified column.

3. `AVG()` - calculates the average value of values in a specified column.

4. `MAX()` - returns the maximum value in a specified column.

5. `MIN()` - returns the minimum value in a specified column.

Aggregate functions are typically used with the `GROUP BY` clause in SQL queries to group the data based on one or more columns and then apply the aggregate function to each group.

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The SQL aggregate function for calculating the arithmetic mean of a specific column is AVG.

The SQL aggregate function that gives the arithmetic mean for a specific column is AVG.

For example, if you have a table called 'students' with a column called 'grades', you can use the AVG function in SQL to calculate the average grade:

SELECT AVG(grades) FROM students;

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Ms. Hernandez began her math class by saying: I'm thinking of 5 numbers such that their mean is equal to their median. If 4 of the numbers are 14, 8, 16, and 14 then, the 5th number is 18. The correct answer is option E.

Since there are five numbers and the middle is the center esteem when the numbers are organized in arrange, the center esteem must be one of the given values: 8, 14, 14, or 16.

The cruel of five numbers is the whole of the numbers isolated by 5. On the off chance that the cruel break even with the middle, at that point the whole of the five numbers must rise to five times the middle.

The whole of the primary four numbers is:

14 + 8 + 16 + 14 = 52

So, the fifth number must be:

5 × 14 - 52 = 18

Hence, the reply is E. 18.

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The approximate probability that the total score is at least 375 when a fair six-sided die is rolled 100 times is (d) 0.4420.

When a fair six-sided die is rolled, the random variable X represents the outcome. The mean (μX) of X is 3.5, and the standard deviation (σX) is 1.71.

To find the probability that the total score is at least 375 when the die is rolled 100 times, we can use the Central Limit Theorem. According to the theorem, the sum of a large number of independent and identically distributed random variables approximates a normal distribution.

In this case, the sum of the outcomes of 100 rolls of the die follows a normal distribution with a mean of μX multiplied by the number of rolls (100) and a standard deviation of σX multiplied by the square root of the number of rolls (10). Therefore, the approximate probability can be calculated by finding the probability that the sum is greater than or equal to 375.

Using a normal distribution table or a calculator, we can find that the approximate probability is 0.4420, which corresponds to answer (d). This means that there is a 44.20% chance that the total score will be at least 375 when the die is rolled 100 times.

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Answer:

£54

Step-by-step explanation:

4/3=72

1

1*72/4/3=

72*3/4=54

The best explanation for the rounding error in Alex's program is that the arithmetic operations on floating-point numbers resulted in a round-off error, as binary floating-point representation cannot represent the number 0.8 exactly. The correct option is D).

The best explanation for the result is that the arithmetic operations on floating-point numbers resulted in a round-off error. In most programming languages, floating-point numbers are represented using a finite number of bits, which can result in some rounding errors when performing arithmetic operations.

This can occur because some numbers cannot be represented exactly using the available bits. In this case, the number 0.8 cannot be represented exactly using binary floating-point representation, leading to a small rounding error.

While this error may seem insignificant, it can accumulate over multiple operations and lead to more significant errors in certain situations.

Therefore, it is important to be aware of the limitations of floating-point arithmetic when working with numerical data in programming. The correct option is D).

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Answer:

Step-by-step explanation:

If a line having slope 'm' and passes through a point \((x_1, y_1)\) then the equation of the line is,

\(y-y_1=m(x-x_1)\)

It's the point-slope form of the line.

in this point slope form of a line, the slope is represented by m the x-coordinate of a point is represented by \(x_1\) and y-coordinate of the point is represented by \(y_1\) .

Answer:

At least 2 weeks

Step-by-step explanation: You divide until you reach 200

Answer:

(2/3,5/3)

Step-by-step explanation:

y= 5/3

x=2/3

Answer:

Yes

Step-by-step explanation:

Without using the property, you would have to do 35+82+65 which is messy. 35+82=117+65=182 ugh

Using the property however, tells you that you can do 35+65+82 which is easier to solve! 35+65=100+82=182

Answer:

(-8,-2)

Step-by-step explanation:

x=2y-4 (equation 1)

7x+5y=-66 (equation2)

Substitute equation 1 in 2

7(2y-4)+5y=-66

14y-28+5y=-66

19y= -66+28

19y= -38

y= -38/19

—>y=-2

Now substitute y=-2 in equation 1

x=2y-4

x=2(-2)-4

x=-4-4

—> x=-8

==>(-8,-2)

Answer:\(180\pi\)

Step-by-step explanation:

\(v=\pi rx^{2} h\\v=\pi 6^{2} 5\\\\v=180\pi\)

Answer:

1. 100pi cm

2. 200.96 yd

3. 7

Step-by-step explanation:

1.) diameter = radius multiple by two (D = r × 2)

&

radius = diameter divided by two (r = D ÷ 2)

So

20 ÷ 2 = 10 => A = pi (10)power 2 => A = 100pi

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

2.) 3.14 × (8)power2 =200.96

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

3.) A = 49pi => 49pi = pi(r)power2

[ cross out the pi from both sides]

And your left with

49 = (r)power2

[square root both sides to get rid of the power]

And your left with

7 = r

a) The mode of the list is 7

b) The median of the list is 7.

c) The mean is 5.4

d) The range is 7

What is the Mean, Mode and Median?

Mean: The mean is the average of a set of numbers, calculated by adding up all the numbers and dividing by the total number of numbers in the set.

Mode: The mode is the most frequently occurring number in a set of numbers.

Median: The median is the middle value in a set of numbers when the set is sorted in ascending or descending order.

a) Mode: The mode of the list is 7, as it is the number that occurs most frequently (3 times).

b) Median: To find the median, the list must first be sorted in ascending order:

1, 2, 3, 4, 5, 7, 7, 7, 8, 8

The median of the list is 7.

c) Mean: The mean is found by adding up all the numbers in the list and dividing by the total number of items:

(3 + 7 + 2 + 4 + 7 + 5 + 7 + 1 + 8 + 8)/10 = 54/10 = 5.4

d) Range: The range is the difference between the largest and smallest numbers in the list:

8 - 1 = 7

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By using the law of exponent the value of (24)⁻¹ is equal to  1/24.

To simplify (24)⁻¹, we can apply the rule for negative exponents.

The rule states that any non-zero number raised to the power of -n is equal to the reciprocal of that number raised to the power of n.

Applying this rule to (24)⁻¹, we have,

(24)⁻¹

= 1 / (24)¹

= 1 / 24

Therefore, applying the law of exponent (24)⁻¹ simplifies to 1/24.

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The above question is incomplete, the complete question is:

Using laws of exponents with integer exponents ,simplify (24)⁻¹.

one over two raised to the power of negative four one over two raised to the fourth power .

well, since the y-intercept is at -5, or namely when the line hits the y-axis is at -5, that's when x = 0, so the point is really (0 , -5), and we also know another point on the line, that is (-1 ,6), to get the equation of any straight line, we simply need two points off of it, so let's use those two

\(\stackrel{y-intercept}{(\stackrel{x_1}{0}~,~\stackrel{y_1}{-5})}\qquad (\stackrel{x_2}{-1}~,~\stackrel{y_2}{6}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{6}-\stackrel{y1}{(-5)}}}{\underset{run} {\underset{x_2}{-1}-\underset{x_1}{0}}} \implies \cfrac{6 +5}{-1} \implies \cfrac{ 11 }{ -1 } \implies - 11\)

\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-5)}=\stackrel{m}{- 11}(x-\stackrel{x_1}{0}) \implies y +5 = - 11 ( x -0) \\\\\\ y+5=-11x\implies {\Large \begin{array}{llll} y=-11x-5 \end{array}}\)