1/2 x 1/2 = please answer I forgot what this was!!

The volume of the figure is the sum of the volume of the square prism and the volume of the square pyramid which is 67.2cm³

To calculate the volume of the figure, we need to find the volume of the square prism and the volume of the square pyramid.

The volume of a square prism is given as;

V = L³

V = 4³

V = 64cm³

The volume of the square pyramid is given as;

V = 1/3lh

V = 1/3 * 4 * 2.4

V = 3.2cm³

The volume of the figure is 64cm³ + 3.2cm³ = 67.2cm³

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True. Data Envelopment Analysis (DEA) is best used in an environment of low diverges and high complexity. In such situations, DEA can effectively analyze and compare the efficiency of decision-making units, even when dealing with multiple inputs and outputs.

Data Envelopment Analysis (DEA) is a method used to measure the efficiency of decision-making units. It works by analyzing a set of inputs and outputs to determine the relative efficiency of each unit. DEA is best suited for situations where there is low diverges among the units being analyzed, meaning they are all operating under similar conditions. Additionally, DEA is most effective in situations of high complexity, where there are multiple inputs and outputs that need to be considered. Therefore, the statement that DEA is best used in an environment of low divergence and high complexity is true.

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2.388 is the margin of error for a 90% confidence interval will be standard deviation.

What does the standard deviation of the sample mean?

Sample size n=30

Sample standard deviation s= 7.7

t critical at alpha =0.10, for 29 d.f. is 1.699

Margin error = t critical ×s/√n

=1.699×7.7/√30 = 2.388

Margin error =2.388

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Answer:

not similar

Step-by-step explanation:

180-56-83=41

Answer:

180-56-83=41

Step-by-step explanation:

#LetsStudy

Answer:

213.7°

Step-by-step explanation:

The bearing of B from D is angle ADB,  Thus, ∠ADB = arctan(30/45) ≈ 33.7°

The bearing of D from B is that angle plus 180°, Thus, 180° +33.7° = 213.7°

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

Part A: 135

Part B: 213.7  

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

[RevyBreeze]

MATE!

213.7°

The bearing of B from D is angle ADB,  Thus, ∠ADB = arctan(30/45) ≈ 33.7°

The bearing of D from B is that angle plus 180°, Thus, 180° +33.7° = 213.7°

Part A: 135

Part B: 213.7  

Answer:

C=0

Step-by-step explanation:

The value of f(2) as calculated by the given function is 14.

Given function:-

\(f(x)=2x^3-2\)

We have to find the value of f(2).

Putting x = 2 in the given function, we get:-

\(f(2)=2(2)^3-2\)

We know that the cube of 2 is 8. Hence, we can write,

f(2) = 2*8 -2 = 16 - 2 = 14.

Function

A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range.

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Answer:

first things first nice picture, second i don't know what a yubu is, and third what is " re again xx"?

Step-by-step explanation:

Answer:

27.5 mm

Step-by-step explanation:

The game piece has the shape of two identical square pyramids attached at their bases. Given that the perimeters of the square bases are 80 millimeters, and the slant height of each pyramid is 17 millimeters.

Let the side length of each of the side of the base of the pyramid be b, hence:

perimeter = 4b

80 = 4b

b = 20 mm. half of the side length = b/2 = 20 / 2 = 10 mm

The slant height (l) = 17 mm, Let h be the height of one of the pyramid, hence, using Pythagoras theorem:

(b/2)² + h² = l²

17² = 10² + h²

h² = 17² - 10² = 189

h = √189

h = 13.75 mm

The length of the game piece = 2 * h = 2 * 13.75 = 27.5 mm.

The graph of g(x) = -x + 6 is obtained from the graph of f(x) = x by reflecting it in the x-axis and shifting it upward by 6 units.

To transform the graph of \(f(x) = x\) into the graph of\(g(x) = -x + 6\), we can apply a series of transformations. Let's go through each step:

Reflection in the x-axis: Multiply f(x) by -1 to reflect the graph in the x-axis. This changes the positive slope to a negative slope, resulting in the graph of \(-f(x) = -x.\)

Vertical translation: Add 6 to -f(x) to shift the graph upward by 6 units. This moves the entire graph vertically upward while maintaining its shape.

Combining these transformations, we obtain the equation \(g(x) = -f(x) + 6,\)which simplifies to \(g(x) = -x + 6.\)

The transformation sequence can be summarized as follows:

f(x) → -f(x) (reflection in the x-axis) → -f(x) + 6 (vertical translation)

This series of transformations results in the graph of\(g(x) = -x + 6\), which is the desired graph.

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The given paragraph states that a stationery shop has been running for 10 years near campus in Jakarta.

Students like the asker often visit this store to purchase stationery, markers, rulers, and photocopiers.

The word "been" is a past participle of the verb "be." It is used to show the completion of an action in the past.

In this case, it implies that the stationery shop has been operating for the past 10 years near the campus.

The sentence can be rewritten as follows to make use of the word "been":

"The stationery shop has been providing stationery, markers, rulers, and photocopiers to students near the campus for 10 years."

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The equation  (√x^2+81 = x+10 ) is equivalent to D: ( x^2 + 81 = x^2 + 20x + 100).

To prove that ( √x^2+81 = x+10  )is equivalent to ( x^2 + 81 = x^2 + 20x + 100 ), we will show that one equation is a consequence of the other.

First, we begin by squaring both sides of the equation ( √x^2+81 = x+10 ). This gives us ( x^2+81 = x^2+20x+100 ).

We can see that if ( √x^2+81 = x+10 ) is true, then  (x^2 + 81 = x^2 + 20x + 100)  must also be true because the left side of the equation is the square of the right side.

The other way around, if ( x^2 + 81 = x^2 + 20x + 100 ) is true, then we can take the square root of both sides and get  (√x^2+81 = x+10 ).

So, the equation ( √x^2+81 = x+10 ) is equivalent to ( x^2 + 81 = x^2 + 20x + 100).

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If both checks have not cleared yet, $55 will come out of Morgan's account soon for the missing check(s).

To determine if both checks have cleared, we need to know the current status of Morgan's account. Without that information, we cannot definitively say whether the checks have cleared or not.

However, based on the information provided, we can calculate the total amount that will come out of Morgan's account soon for the missing check(s).

The total amount that will come out of Morgan's account soon can be calculated as the sum of the $30 fee and the $25 birthday gift, which is $55 in total.

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Step-by-step explanation:

Area=b×h

= (x+5)×(x+6)

=x^2+6x+5x+30

=x^2+11x+30

If u simplify u will get (x+5)(x+6) as answer.

Keep smiling and hope u are satisfied with my answer.Have a good day :)

Answer: look at the explanation

Step-by-step explanation:

It goes down by 40%

Answer: a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation: the y-intercept is where the line meets the y line which in this case is -3. I used slope formula to find the m of the equation ( slope ) take a look at the attached image to see how I solved it.

Answer:

a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation:

Answer:

Spell correctly please maybe I can help you

The vector equation for the line is:

r(t) = (1, 0, 6) + t(-4, 1, 4)

The parametric equations for the line.

x(t) = 1 - 4t

y(t) = t

z(t) = 6 + 4t

To find a vector equation and parametric equations for the line passing through the point (1, 0, 6) and perpendicular to the plane x + 4y + z = 7, we can first determine the direction vector of the line.

The normal vector of the plane x + 4y + z = 7 is (1, 4, 1) since the coefficients of x, y, and z represent the normal vector.

Any line perpendicular to this plane must have a direction vector orthogonal to the normal vector of the plane.

Let's call the direction vector of our line (a, b, c).

We know that the dot product of the direction vector and the normal vector of the plane is zero:

(a, b, c) ⋅ (1, 4, 1) = 0

This equation gives us a condition for the direction vector.

We can choose any values for a, b, and c as long as they satisfy this condition.

For simplicity, we can choose a = -4, b = 1, and c = 4, which gives us a direction vector (-4, 1, 4) orthogonal to the plane.

Now, let's denote the position vector of the given point (1, 0, 6) as (x₀, y₀, z₀) = (1, 0, 6).

The vector equation of the line can be written as:

r(t) = r₀ + t × v

where r₀ is the position vector of a point on the line (which is (1, 0, 6)), t is the parameter, and v is the direction vector of the line (-4, 1, 4).

Therefore, the vector equation for the line is:

r(t) = (1, 0, 6) + t × (-4, 1, 4)

Expanding this equation, we get:

x(t) = 1 - 4t

y(t) = t

z(t) = 6 + 4t

These are the parametric equations for the line passing through the point (1, 0, 6) and perpendicular to the plane x + 4y + z = 7.

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Answer: x = 3.2 + 0.6y

Step-by-step explanation: Simplifying

5x + -3y = 16

Solving

5x + -3y = 16

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3y' to each side of the equation.

5x + -3y + 3y = 16 + 3y

Combine like terms: -3y + 3y = 0

5x + 0 = 16 + 3y

5x = 16 + 3y

Divide each side by '5'.

x = 3.2 + 0.6y

Simplifying

x = 3.2 + 0.6y

Based on the AA Similarity Theorem, triangles PQR and TSR are proven to be similar to each other because they have two pairs of corresponding angles that are congruent to each other.

The AA (Angle-Angle) Similarity Theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. This means that the corresponding sides of the triangles are in proportion to each other.

With the information given, the proof that shows that the two triangles are similar as as follows:

Statements                                         Reasons                                        

1. ∠QPR ≅ ∠STR                                1. Given

2. QR ⊥ PT                                         2. Given

3. ∠QRP ≅ ∠SRT                               3. def. of perpendicular

4. ΔPQR ~ ΔTSR                                4. AA Similarity Theorem

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The potential energy of the water in a lake is 57 trillion N × m, which is 57 trillion joules (J).

Gravitational potential energy applies in this situation. G P E = m g h is the formula for gravitational potential energy, where: mg stands for weight or mass times gravity (w). The height to which an object can fall before kinetic energy replaces potential energy is denoted by the symbol h. In the example of the lake, we first determine the amount of water using the equation for the volume of a typical cylinder in order to determine the weight of the cylinder: V cy l = π r²L , The weight density of the water per cubic foot, which is about 62 lb, can then be multiplied by this volume: W(water) = (Volume) (Density)

W (water) = (28,000,000 ft² ⋅ 40ft) ( 62 lb ÷ ft³ )

W (water) = 69,440,000,000 lb

To calculate the potential energy, multiply this weight by the height. GPE=mgh

GPE=Wh=(69,440,000,000lb)(600ft)

GPE=41,644,000,000,000ft⋅lb

matching the level of precision by rounding the response to two significant digits. 4.2X10¹³ft⋅lb , or 42 trillion ft-lb.

Because joules are measured in N × m units, multiply the result by fractional equivalencies. 42trillionft × lb × (4.45N ÷ lb) × (m ÷ 3.28ft)

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Your score must be greater than or equal to 81 in order to receive an A grade. The mean value comes out to be 80.52.

Here, we are given that professor Degroot has a policy of giving A grade to the top 10% of student scores on his final.

This means in order to earn an A grade, your score should be in the top 10%.

⇒ Z score should be 0.09

we can look at the z tables to find that this value is at z = 1.28

Now, we know z score is calculated as-

z = (X - μ)/ σ

where X = observed value

μ = sample mean

σ = standard deviation

substituting the given values in the formula we get-

1.28 = (X - 69)/ 9

1.28 × 9 = X - 69

11.52 = X - 69

X = 11.52 + 69

X = 80.52

Thus, your score must be greater than or equal to 81 in order to receive an A grade.

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Popular Problems Algebra Evaluate Using Scientific Notation (7.1*10^-5)(6.7*10^-6)

(

7.1

⋅

10

−

5

)

(

6.7

⋅

10

−

6

)

Group coefficients together and exponents together to multiply numbers in scientific notation.

(

7.1

⋅

6.7

)

(

10

−

5

⋅

10

−

6

)

Multiply

7.1

by

6.7

.

47.57

(

10

−

5

⋅

10

−

6

)

Use the power rule

a

m

a

n

=

a

m

+

n

to combine exponents.

47.57

⋅

10

−

5

−

6

Subtract

6

from

−

5

.

47.57

⋅

10

−

11

Write

47.57

⋅

10

−

11

in proper scientific notation.

4.757

⋅

10

−

10

Answer:

4026

Step-by-step explanation:

Remember PEMDAS:

P - parenthesis

E - exponents

MD - Multiplication and Division (Left to Right)

AS - Addition and Subtraction (Left to Right)

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

Start off by doing the parenthesis (7.1 x 10-5)

We must perform multiplication first so 7.1 x 10 is 71. From there you subtract 5 so 71 - 5 is 66!

So far we have: 66(6.7 x 10-6)

But we aren't done yet!

You must solve (6.7 x 10-6)

Same goes here, multiplication is done first so we would do 6.7 x 10 which is 67. Next, 67-6 which is 61.

We now have (66)(61)

When there is no sign of multiplication or division and the numbers are next to each other like this, you perform multiplication. So, 66x61 is 4026.

Thus, the answer is 4026!

P.S please mark brainiest, this took time <3

Yes, this statement is true, if m and n are positive rational numbers

Answer:

Hope it helps if its wrong I'm really sorry for getting you the wrong answer

Step-by-step explanation:

1.= 3x+2

2.= 4x+2

3.=5x+11

4.=12x+10

5.=4x+21

Sebastian, this is the solution to the first problem you uploaded:

Let's recall that the interior angles of a triangle add up to 180 degrees.

Then if E =

The following distributions has a mean that varies

II. The distribution of sample data

III. The sampling distribution of the sample mean

The correct answer is option v) II and III."

Here, we have,

In the context of statistical distributions:

I. The population distribution refers to the distribution of a specific variable within the entire population. The mean of the population distribution which is fixed and does not vary.

II. The distribution of sample data refers to the distribution of a variable within a specific sample. The mean of the sample data can vary from one sample to another.

III. The sampling distribution of the sample mean refers to the distribution of sample means taken from multiple samples of the same size from a population. The mean of the sampling distribution of the sample mean is equal to the population mean, but the individual sample means can vary from sample to sample.

Therefore, the mean varies in both the distribution of sample data (II) and the sampling distribution of the sample mean (III), but not in the population distribution (I).

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In Milgram's first study of obedience, the majority of teachers initially complied but refused to deliver more than slight levels of shock.

In Milgram's first study of obedience, participants were assigned the role of 'teacher' and were instructed to administer electric shocks to a 'learner' whenever they answered a question incorrectly. The shocks ranged from mild to severe, with the highest level labeled as 'XXX.' The learner was actually an actor, and no real shocks were administered.

The study found that the majority of teachers initially complied with the experimenter's orders and delivered shocks, but they refused to deliver more than slight levels of shock. This suggests that while they were willing to follow the instructions to some extent, they had moral reservations about causing significant harm to another person.

It is important to note that the study has been criticized for ethical concerns and the potential psychological harm it may have caused to participants. However, it remains a significant contribution to our understanding of obedience and the power of authority figures.

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Answer:

Step-by-step explanation:

A) Two similar solids have a scale factor of 3:5. If the height of solid I is 3 cm, find the height of solid II (B) If the surface area of 1 is 54π cm, fine