plz answer if u can :P

Estimated change in momentum of the boy after he lands without rebounding is equal to 0 kgm/s approximately.

Height of the wall = 3meters

To estimate the change in momentum of the boy when he lands without rebounding,

Use the principle of conservation of momentum.

The change in momentum of an object is equal to the product of its mass and the change in velocity.

Here, the boy's mass is not given, but we can assume it to be negligible compared to the change in velocity.

This implies, focus on the change in velocity alone.

When the boy jumps from a wall 3m high, he undergoes free fall due to gravity.

The final velocity of an object in free fall can be calculated using the equation,

v² = u² + 2as,

where,

v = final velocity (unknown)

u = initial velocity (0 m/s, as the boy jumps from rest)

a = acceleration due to gravity (-9.8 m/s²)

s = displacement (3 m, height of the wall)

Rearranging the equation, we get,

⇒ v² = 0 + 2(-9.8)(3)

⇒ v² = -58.8

⇒ v ≈ -7.67 m/s

Since the boy lands without rebounding, his final velocity is approximately -7.67 m/s,

Considering downward motion as negative.

The change in momentum can be calculated by multiplying the mass assumed to be negligible with the change in velocity,

⇒ Change in momentum = mass × change in velocity

⇒ Change in momentum ≈ 0 × (-7.67) kgm/s

⇒ Change in momentum ≈ 0 kgm/s

Therefore, the estimate of the change in momentum of the boy when he lands without rebounding is approximately 0 kgm/s.

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ml = 0 is valid so the sets of quantum numbers are validated or not validated as mentioned above.

Here are the given sets of quantum numbers for the hydrogen atom which need to be validated.

Set 1 (n=3, l=3, ml=0, ms=+1/2) - Valid or Not valid

Set 2 (n=2, l=1, ml=1, ms=-1/2) - Valid or Not valid

Set 3 (n=4, l=1, ml=0, ms=-1/2) - Valid or Not valid

The first step is to understand the set of quantum numbers. Each electron in an atom is assigned a set of four quantum numbers.

The four quantum numbers are: n, l, ml, and ms. The principal quantum number n, the angular momentum quantum number l, the magnetic quantum number ml, and the spin quantum number ms are the four quantum numbers that define the electron's state.

Set 1 (n=3, l=3, ml=0, ms=+1/2)

It is not valid because ml can be from -l to +l, and when l is 3, ml can be -3,-2,-1,0,1,2,3. So, the value of ml should be from -3 to +3.

Set 2 (n=2, l=1, ml=1, ms=-1/2)

It is valid because l = 1, so ml can be -1,0,1. Therefore, ml = 1 is valid.

Set 3 (n=4, l=1, ml=0, ms=-1/2)

It is valid because l = 1, so ml can be -1,0,1. Therefore, ml = 0 is valid.

Thus, the sets of quantum numbers are validated or not validated as mentioned above.

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To find the distance traveled by a particle with position (x, y) as t varies in the given time interval, we need to calculate the length of the path traced by the particle. We can evaluate this integral using a substitution method or a numerical approach to find the exact distance traveled by the particle in the given time interval.

The position functions are x = 3sin^2(t) and y = 3cos^2(t) in the interval 0 ≤ t ≤ 5.

Find the derivatives of the position functions with respect to t.
dx/dt = d(3sin^2(t))/dt = 6sin(t)cos(t)
dy/dt = d(3cos^2(t))/dt = -6sin(t)cos(t)

Calculate the magnitude of the velocity vector.
|v| = sqrt((dx/dt)^2 + (dy/dt)^2) = sqrt((6sin(t)cos(t))^2 + (-6sin(t)cos(t))^2)

Simplify the expression.
|v| = sqrt(36sin^2(t)cos^2(t) + 36sin^2(t)cos^2(t)) = sqrt(72sin^2(t)cos^2(t))

Integrate |v| over the interval [0, 5] to find the distance traveled.
Distance traveled = ∫|v| dt from 0 to 5 = ∫(sqrt(72sin^2(t)cos^2(t))) dt from 0 to 5

Now, you can evaluate this integral using a substitution method or a numerical approach to find the exact distance traveled by the particle in the given time interval.

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The Greek letter alpha (α) represents the probability that is the level of significance in statistical hypothesis testing and helps control the risk of making Type I errors.

The Greek letter alpha (α) represents the level of significance in statistical hypothesis testing. It is a predetermined threshold that determines the probability of rejecting the null hypothesis when it is true. In other words, it measures the willingness of a researcher to make a Type I error, which is the incorrect rejection of a true null hypothesis.

The level of significance (α) is typically set before conducting the hypothesis test and is commonly chosen at 0.05 (5%) or 0.01 (1%). It represents the maximum probability that a researcher is willing to accept for making a Type I error.

When performing hypothesis tests, the p-value (probability value) is compared to the level of significance (α) to determine whether the null hypothesis should be rejected or not. If the p-value is smaller than the level of significance, the null hypothesis is rejected in favor of the alternative hypothesis.

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The fourth vertex's coordinates are as follows: ( 2.1, -3.6)

A coordinate system in geometry is a method for determining the precise location of points or other geometrical objects on a manifold, such as Euclidean space, using one or more numbers, or coordinates.

So, let the missing coordinates be (a,b).

Let's now utilize the midpoint formula to locate the erroneous coordinate.

Let the reference point be (-2.3, 3.6) A.

Let point B be (2.3, 2.2).

(2.1, 2.2) Let C be the point.

The center of AC should be at BD.

Step 1: Locating the AC's midpoint

Middle pint of AC:

(-2.3 + 2.1/2), (-3.6 + 2.2/2)

(0.2/2), (1.4/2)

(-0.1, -0.7)

Let's equate the midpoints in step two.

The BD mid-point:

(a + -2.3/2), (b + 2.2/2) =  (-0.1, -0.7)

(a + -2.3/2) = -0.1

(a -2.3/2) = -0.1*2

a = -0.2+2.3

a = 2.1

(b + 2.2/2) = -0.7

b + 2.2 = -0.7*2

b + 2.2 = -1.4

b = -1.4 -2.2

b = -3.6

Therefore, the fourth vertex's coordinates are as follows: ( 2.1, -3.6)

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Complete question:

Freddy drew a plan for a rectangular piece of material that hehe will use for a blanket. Three of the vertices are ​( -2.3 and −3.6​), ​(−2.3​, and 2.2​), and ​(2.1​, and 2.2​). What are the coordinates of the fourth​ vertex?

a) The random variable is X, which represents the number of 27 randomly selected people that are left-handed.

b) Given values: n = 27  p = 0.09

c)  The correct interpretation of the mean is: Out of every 27 people, on average, 2.43 of them are left-handed.

d) The standard deviation is approximately 1.49

a) The random variable is X, which represents the number of 27 randomly selected people that are left-handed.

b) Given values:

n = 27 (sample size)

p = 0.09 (probability of a person being left-handed)

c) To compute the mean, you can multiply the sample size by the probability:

Mean (μ) = n * p

μ = 27 * 0.09 = 2.43

The correct interpretation of the mean is:

Out of every 27 people, on average, 2.43 of them are left-handed.

d) To compute the standard deviation (σ), you can use the formula for the binomial distribution:

Standard Deviation (σ) = √(n * p * (1 - p))

σ = √(27 * 0.09 * (1 - 0.09))

σ = √(2.43 * 0.91)

σ ≈ √2.2153

σ ≈ 1.49 (rounded to 2 decimal places)

Therefore, the standard deviation is approximately 1.49

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Answer:

It's 64 degrees

Step-by-step explanation:

multiply the temperature in degrees Celsius by 2 then add 30 to get the estimated temperature

Answer:

x=35°

Step-by-step explanation:

∠A+∠B+∠C=180°(ASP)

In ΔCAD, DC=DA

so, ∠DAC=∠DCA( angles opposite to equal sides are equal)

∠B=90°(given)

So, ∠DCA= 180°-(90+20)= 70°

Since ∠DCA= ∠DAC,

2x= 70°

x=35°

The value of angle A or the value of x is 35°

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

The angle A will be calculated as:-

∠A+∠B+∠C=180°(ASP)

In ΔCAD, DC=DA

so, ∠DAC=∠DCA( angles opposite to equal sides are equal)

∠B=90°(given)

So, ∠DCA= 180°-(90+20)= 70°

Since ∠DCA= ∠DAC,

2x= 70°

x=35°

Therefore the value of angle A or the value of x is 35°

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Answer:

my mom calls me I'll be back

Let's find the angular velocity:

We need to find the velocity in radians per second, so:

Let's find the linear speed:

We need to express this speed in feet per minute, so:

Now in miles per hour:

Answer:

144 in^2

Step-by-step explanation:

Using the A = s^2 and the text says that s= 12in

 the answer is 12 in * 12 in = 144 in^2

Answer:

LCM = 2^4 x 3^2 x 5^2 x 7 = 25200

Step-by-step explanation:

Prime factorization of 720:

720 = 2^4 x 3^2 x 5

Prime factorization of 1575:

1575 = 3^2 x 5^2 x 7

Answer:

720 = 2 × 2 × 2 × 2 × 3 × 3 × 5

1,575 = 3 × 3 × 5 × 5 × 7

LCM of 720 and 1,575 =

2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 7 = 25,200

Answer:

Step-by-step explanation:

1/3 as a decimal is 0.3333333 repeating

Answer:

0.33

Step-by-step explanation:

Divide 1 by 3 and you'll get a repeating answer of 0.33333333333. When you round it it'll be seen as 0.33

Answer:

0

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

Its 1 because the square root of anything is that number having the ability to be multiplied by the same number. And that is going to be a positive number.

The value of angle x = 39° using angle sum property.  

An angle is a shape in Euclidean geometry composed of two rays, referred to as the sides of circle, that diverge at the angle's tip and the peak, which is situated in the middle. Within the plane they are located in, two rays can join to form an angle. Angle is another outcome of two objects interacting. They are known as dihedral angles. Two line beams with ends can be arranged in a variety of ways to create an angle in 2 dimensions.

Here,

The angle opposite to 68 is vertically opposite angle,

And the angle adjoining 107 is linear pair of 107,

⇒ 180 - 107 = 73°

Now, using angle sum property,

the value of x will be -

68 + 73 + x = 180

141 + x = 180

x = 180 - 141

x = 39°

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Complete question -

Find x -

Answer:

c is my opinion

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

trust me.

The probability of picking 5 vowels and 1 constant when 6 letters are picked with replacement from a set of alphabet tiles is 2.12.

To find the probability of picking 5 vowels and 1 constant when 6 letters are picked with replacement from a set of alphabet tiles:

Given:

To find:

The probability of picking 5 vowels:

The probability of picking 1 consonant:

The probability of picking 5 vowels and 1 consonants:

Therefore, the probability of picking 5 vowels and 1 constant when 6 letters are picked with replacement from a set of alphabet tiles is 2.12.

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The solutions of the inequality \(2x^{2} + x - 6 = 0\) are 3/2, -2. This can be found by using the Quadratic Formula, which states that for any quadratic equation of the form \(ax^{2} +bx + c = 0\), the solutions are \(x = -b +/-\sqrt{b^{2} -4ac} /2a\).

Discriminant: b² - 4 a c = 1 - 4(2)(-6) = 1 + 48 = 49

Solution 1: x = \(-b + \sqrt{b^{2} -4ac} /2a\) = (-1 + √49)/(2×2) = (-1 +7)/4 = 6/4 = 3/2

Solution 2: x = \(-b-\sqrt{b^{2} -4ac} /2a\)= (-1 - √49)/(2×2) = -8/4 = -2

So, the two solutions are 3/2 and -2.

The equation can also be written as,

\(2x^{2} +4x -3x-6=0\)

\(2x(x+2) -3(x+2) = 0\)

\((2x-3)(x+2) = 0\)

x = 3/2, -2

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Answer:varibale

Step-by-step explanation:

Answer:

an expression.

Step-by-step explanation:

if it was a variable it would be 6x but it not so it an expression

Answer:

d. y ≤ 3/4x -6

Step-by-step explanation:

3x -4y ≥ 24

-4y ≥ -3x +24  subtraction property

y ≤ 3/4x -6 division property (change the direction of the symbol)

Answer:

Part A

y ≤ 3/4x – 6

the last option

Part B

answer is in the attachment

Part C

(-2,-8)

(8,0)

(4,-4)

Step-by-step explanation:

Part A

Use the properties of inequalities to rewrite the inequality:

3x − 4y ≥ 24  

-4y ≥ -3x + 24 subtraction property

y ≤ x – 6 division property (change the direction of the symbol)

Part B

Plot the boundary line, which will be solid because the inequality is non-strict. Use either the equation 3x − 4y = 24  or y=3/4x-6

Next, use a test point, such as (0,0), to determine where to shade:

3(0) − 4(0) ≥ 24

0 ≥ 24

The result is false, so shade on the opposite side of the boundary line.

Part C

Use the graph of the inequality to determine whether each point lies in the solution set.

For this non-strict inequality, any point in the shaded region or on the line is a solution. So (8,0), (4,-4), and (-2,-8) are all solutions to the inequality.

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In a two-player zero-sum game, player one and player two each have three strategies. Player one has a payoff matrix of (5, 2, 3), (2, 0, 4), and player two has a payoff matrix of (3, 3, 0). Find the optimal strategies for both players.1. Formulating the LP problem.

The linear programming formulation of a two-person zero-sum game is:Maximize the value of v given by: V = min (row maximums), where the minimum is taken over all rows of the matrix and the row maximums are the maximum element in each row of the matrix. Subject to the following constraints:Player 1 strategies: p11 + p12 + p13 = 1, where p11, p12, and p13 represent the probabilities of player 1 choosing strategies 1, 2, and 3, respectively.Player 2 strategies: p21 + p22 + p23 = 1, where p21, p22, and p23 represent the probabilities of player 2 choosing strategies 1, 2, and 3, respectively.Non-negativity constraints: p11, p12, p13, p21, p22, p23 ≥ 0.2. Finding the optimal strategies of the game between two playersThe given payoff matrix for the game is:5 2 32 0 43 3 0.

In this game, the row maximums are 5, 4, and 3.The linear programming formulation of the game can be represented as:Maximize V = min (row maximums)Subject to:p11 + p12 + p13 = 1p21 + p22 + p23 = 1p11, p12, p13, p21, p22, p23 ≥ 0The solution of this game is obtained by solving the following linear programming problem.Maximize V = min (5p11 + 2p12 + 3p13, 2p21 + 4p13, 3p21 + 3p22)Subject to:p11 + p12 + p13 = 1p21 + p22 + p23 = 1p11, p12, p13, p21, p22, p23 ≥ 0On solving the above problem, we get optimal strategies for the game between two players.Player 1 optimal strategy is:p11 = 0, p12 = 1/3, and p13 = 2/3.Player 2 optimal strategy is:p21 = 1/3, p22 = 0, and p23 = 2/3.Thus, player 1 should play strategy 3 with probability 2/3 and strategy 2 with probability 1/3. Player 2 should play strategy 3 with probability 2/3 and strategy 1 with probability 1/3.

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There are 3 tolls where Stephanie pays $ 4.05.

The distance between two points is the length of the path connecting them.

Here,

Distance covered by Stephanie = 12 1/4 miles

                                                     = 12.25 miles

Distance between two toll tax = 3 1/2 miles

                                                   = 3.5 miles

Number of Tolls = Total distance covered / Distance between two tolls

                            = 12.25 / 3.5

                            = 3.5

                            ≈ 3 tolls.

Cost of 1 toll = $ 1.35

Total amount paid on toll = 3 X 1.35

                                          = $ 4.05

Thus, there are 3 tolls where Stephanie pays $ 4.05.

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The solution of the inequality is:

s ≥ -0.86

And the graph can be seen on the image at the end.

Here we want to find and graph the solution set of the inequality below:

(2/5)*s + 7 ≥ 3 - 4.2*s

To do so, first we need to isolate s in one of the sides, then let's do that:

(2/5)*s + 7 ≥ 3 - 4.2*s

(2/5)*s + 4.2*s ≥ 3 - 7

(2/5 + 4.2)*s  ≥ -4

And we know that 4.2 = 21/5

Then:

(2/5 + 21/5)*s  ≥ -4

(23/5)*s ≥ -4

s ≥ -4*5/23

s ≥ -20/23

s ≥ -0.86

The graph of this will something like the one below:

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Answer:

Not a function

Step-by-step explanation:

For an equation to be a function, there should be only one y-coordinate per x-coordinate. Since this relation has both (-1,9) and (-1,4), this is not a function.

Answer:not a function

Step-by-step explanation:

because when you put the points on the coordinate plane your shape will come out as a v shaped object. In mathematics, a function is a binary relation over two sets that associates to every element of the first set exactly one element of the second set. Typical examples are functions from integers to integers or from the real numbers to real numbers

Answer:

1:59 bro ...........................

Answer:

1.59

Step-by-step explanation:

1 pound + 59pence as interest= 1.59

Answer:

b

Step-by-step explanation:

0.223 rounds to 0.2 and 0.54 rounds to 0.5 so 0.5-0.2

By using linear equations it can be concluded that the systolic blood pressure of a newborn is 95 mm hg.

Linear equations are one of the equations of algebra where this equation contains constants with a single variable.

The equation represents the linear model for the systolic blood pressure of people of several different ages data is y = x + 95.

We want to know the systolic blood pressure of a newborn, which means that the age is 0. It can be written mathematically as x = 0.

Now we input this value into the equation:

y = x + 95

  = 0 + 95

  = 95 mm hg

Thus the systolic blood pressure of a newborn is 95 mm hg.

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Answer: 300 sq. ft

Step-by-step explanation:

1/5x - 25 = 35

1/5 x = 35+25

x = 60 * 5 = 300 sq. ft.

Answer:

300

Step-by-step explanation:

I did it on edge

At 12 seconds, the cart will be moving at 24 cm per second.Rebecca is using a fan cart and measuring the rate of the cart at different times.

Rebecca is using a fan cart and measuring the rate of the cart at different times. At 10 seconds, the cart has a speed of 20 cm per second. To calculate the speed at 12 seconds, you can use the formula rate x time = distance. The rate is the speed of the cart at 10 seconds, which is 20 cm per second. The time is the difference between 10 seconds and 12 seconds, which is 2 seconds. Thus, the equation becomes 20 cm/s x 2s = 40 cm. Therefore, the speed at 12 seconds is 24 cm per second.

At 12 seconds, the cart will be moving at 24 cm per second.

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