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Answer: 3 1/2 divided by 1/4 = 14,

if it is just 1/2 divided by 1/4 then the answer is 2

Good luck!

The growth rate of a man's scalp hair is approximately 4.13 feet per century.

Given that the rate of growth of a man's scalp hair is 0.39 mm per day.

To find this growth rate in feet per century, we need to convert the given units into feet and century.

1 foot = 304.8 mm1 day

= 1/36500 century

Therefore, the rate of hair growth in feet per century can be calculated as follows:

0.39 mm/day × 1 foot/304.8 mm × 36500 day/century

= 4.13 feet/century

Therefore, the growth rate of a man's scalp hair is approximately 4.13 feet per century.

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Answer:

B.   3,158

Step-by-step explanation:

h(x) = -49x − 125

Let x = -67

h(-67) = -49(-67) − 125

          =3283-125

          = 3158

Answer:

Answer B

Step-by-step explanation:

To find the value of h(-67) for the function h(x) = -49x - 125,

we substitute -67 for x in the function and evaluate it.

h ( - 67 ) = - 49 ( - 67 ) - 125

Now we can simplify the expression:

h ( -67 ) = 3283 - 125

h ( -67 ) = 3158

Answer:

3 + 15n = 153

Step-by-step explanation:

More than = + (addition)

Product = x (multiplication)

Product of 15 and n = 15 x n = 15n

Therefore,

3 + 15n = 153.

The sequence of transformation that takes triangle ABC to triangle DEF is

A rotation of 90 degrees counter clockwise about the origin is a transformation in which each point in a plane is rotated 90 degrees in the counterclockwise direction around the origin.

90 degrees counter clockwise about the origin brings the preimage to the third quadrant

Reflection over the y-axis is a transformation that involves flipping a given figure or object across the y-axis, which is the vertical line that runs through the origin of a Cartesian coordinate system.

Reflection over the y-axis matches the preimage to the image

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Answer:

m = -12

Step-by-step explanation:

everything is ok til the 3rd equation line

-15m - 30 = -12m + 6

-30 - 6 = -12m + 15m

-36 = +3m

-36/3 = m--------> 3 x -12 = - 36

-12 = m

Answer:

I beleive the answer is 8

Step-by-step explanation:

4+4=8

The probability that the female kittens are together, and all the male kittens are together is 1/35.

Permutation is defined as the calculation of a set such that it defines the number of ways that something can be arranged.

Let A represents the arrangements of 8 kittens which includes 4 male and 4 female.

N(A) = 8P₈ / (4! × 4!) = 8! / (4! × 4!) = 70

Let B represents the arrangement of kittens such that 4 males are together and 4 females are together.

N(B) = 2

Probability of arranging kittens in such a way that all the female kittens are together, and all the male kittens are together = 2/70 = 1/35

Hence the required probability is 1/35.

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Answer:

We can rewrite this as \(\frac{200x}{x} + \frac{-300}{x}\).

\(\frac{200x}{x}\) simplifies to 200 after eliminating x from the numerator and denominator and \(\frac{-300}{x}\) becomes \(-\frac{300}{x}\) so the final answer is \(200 - \frac{300}{x}\).

Answer:

A: 428.75/ 24.5 = $17.50 per sq foot

B: 62.50*24.50 = $1,531.25

C: 428.75 + 1,531.25 + 137.50 = $2,097.50 for the total replacement

Step-by-step explanation:

Slope is also known as the gradient of a line. The number of blocks that Teddy is weighing is 20 blocks per pound.

A slope is also known as the gradient of a line is a number that helps to know both the direction and the steepness of the line. It also tells us the rate between the two given quantities.

As the graph is given to us and we need to find the number of blocks teddy is putting per pound, therefore, we need to calculate the rate of the graph also known as the slope of the graph, therefore, using any of the two points to calculate the slope of the graph,

\({\rm Point1} : (x_1, y_1) = (0, 0)\\\\{\rm Point2} : (x_2, y_2) = (5, 100)\)

We know that the slope of the line is given as,

\(\text{Slope of the line} = \dfrac{y_2-y_1}{x_2-x_1}\)

Substitute the values,

\(\text{Slope of the line} = \dfrac{100-0}{5-0} = \dfrac{100}{5}=20\)

Hence, the number of blocks that Teddy is weighing is 20 blocks per pound.

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Answer:

1.5 meters

Step-by-step explanation:

they first move forward 2 meters and then move backwards 1 meter (1 meter from their starting point, and then they move forward 0.5 meters. So the displacement of the dancers from their starting point is 1.5 meters.

0 + 2 = 2

2 - 1 =  1

1 + 0.5 = 1.5

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Answer:

well, let's notice the denominators, hmmm so we can use as the LCD say the expression of "rpq", so, let's multiply both sides by the LCD of "rpq" to do away with the denominators.

\(\cfrac{2}{r}+\cfrac{1}{p}=\cfrac{1}{q}\implies \stackrel{\textit{multiplying both sides by } ~~ \stackrel{LCD}{rpq}}{rpq\left( \cfrac{2}{r}+\cfrac{1}{p} \right)=rpq\left( \cfrac{1}{q} \right)}\implies 2pq+1rq=1rp \\\\\\ 2pq+rq=rp\implies rq=rp-2pq\implies rq=\stackrel{\textit{common factoring}}{p(r-2q)}\implies \cfrac{rq}{r-2q}=p\)

From the given information provided, since matrix A is invertible, A⁻¹ exists. We cannot say it in general B=C when A is not invertible.

If AB = AC and A is invertible, then we can left-multiply both sides by A⁻¹ to obtain:

A⁻¹AB = A⁻¹AC

which simplifies to:

B = C

Therefore, B and C are equal.

If A is not invertible, then it is possible for B and C to be different matrices satisfying AB = AC. For example, consider A = 0, B = C = any nxp matrices. Then AB = AC = 0, but B and C can be any matrices.

To show that B = C when A is invertible, we only need the fact that A is invertible. None of the assumptions A through D are necessary to prove this result.

However, if we know that the determinant of A is zero, then we can conclude that A is not invertible. In this case, the assumption AB = AC does not imply that B = C.

Dividing both sides by matrix A (option B) is not a valid operation unless we know that A is invertible. Option C, A=1, is not a meaningful assumption because A is not necessarily a scalar. Option D, since matrix A is invertible, A⁻¹ exists, is true but not useful in proving the result.

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Answer:

option A

Step-by-step explanation:

when there is an open circle, that means Less than or equal to.

if and when there is a Closed, colored Circle, It's Greater than or equal to or less than or equal to

Answer : \(22.000\) x \(10x^{3}\)

Step-by-step explanation:

Answer:22 x 10^3

Step-by-step explanation:

the inequality that represents the given situation is 3 < w ≤ 8.

In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.

Given an expression, w is less than or equal to 8 and greater than 3.

From the first condition:

=> w is less than of equals to 8

=> w ≤ 8

From the second condition:

=> w is greater than 3

=> 3<w

Comparing both equations,

=> 3 < w ≤ 8

therefore, the inequality that represents the given situation is 3 < w ≤ 8.

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We will have the following:

First, we have the graph of the problem:

Now, we determine the slope of the diagonals, and if those are perpendiullar we then have that it will be a square, that is:

From this, we can see that the slopes are perpendicular. This is a condition for a square or a rhombus.

Now, we determine if the graph belongs to a square by determining if the slopes of AB & BC are perpendicular:

From this we can see that those segmens are also perpendicular, so in this particular case the graph is a square. [Which technically speaking is also a rhombus].

The reasoning is that the diagonals are perpendicular and the external segments are also perpendicular, a property that belong to squares.

Now, we find the intersection point of the diagonals, that is:

Now, we determine the distance of all 4 segments AM, BM, CM & DM:

So, the distance of all segments that divide the diagonals are equal, thus the points describe a square.

Answer:

\(pr(x=6)=\frac{17}{28}\)

Step-by-step explanation:

Well the probabilities should all up to 1. This means pr(x<6) + pr(x=6) + pr(x>6) = 1.

So plugging in the known values we get: \(\frac{1}{7} + pr(x=6) + \frac{1}{4}=1\)

To make things easier, let's multiply the 1/7 by 4/4 and 1/4 by 7/7

\(\frac{4}{28}+pr(x=6)+\frac{7}{28}=1\)

Now combine like terms: \(pr(x=6)+\frac{11}{28}=1\)

Subtract 11/28 from both sides

\(pr(x=6)=\frac{17}{28}\)

The equation of the line with a slope of 1 passing through the point (0, 2) is y = x + 2.

To verify this, we can substitute the coordinates of the given point (0, 2) into the equation y = x + 2:

2 = 0 + 2

This equation holds true, confirming that the line y = x + 2 passes through the point (0, 2) and has a slope of 1.

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Answer:

x=62

Step-by-step explanation:

The 2 angles are supplementary (add up to 180 degrees)

so x=180-118

x=62

Answer:

62

Step-by-step explanation:

a) The physical meaning of a solution Ψ(x,t) is the same as e^iΔΨ(x,t), where Δ is real.

b) Solutions of the time-independent Schrödinger equation can be taken as real functions.

c) The expectation value of momentum in a stationary state is zero.

d) If V(x) is an even function, ψ(x) can be either even or odd.

a) The physical observables and probabilities in quantum mechanics are determined by the magnitude of the wavefunction squared, |Ψ(x,t)|^2. The phase of the wavefunction, represented by e^iΔ, only affects the overall complex coefficient of the wavefunction and cancels out when calculating probabilities or observables. Therefore, different wavefunctions that differ only by an overall phase have the same physical meaning.

b) The time-independent Schrödinger equation represents stationary states, where the wavefunction does not change with time. Taking the complex conjugate of the wavefunction, ψ(x)∗, still satisfies the equation. As the complex conjugate of a real function is itself, this implies that the solutions can be taken to be real.

c) In a stationary state, the wavefunction does not evolve with time. The expectation value of momentum is given by the integral of the product of the complex conjugate of the wavefunction and the momentum operator. Since the wavefunction does not change with time, its derivative with respect to time is zero, resulting in an expectation value of momentum of zero.

d) The potential V(x) being an even function implies that it has symmetry around the origin. This symmetry allows for the wavefunction to also have the same symmetry. It can be represented as either an even function (symmetric about the origin) or an odd function (antisymmetric about the origin) to satisfy the Schrödinger equation.

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Step-by-step explanation:

you are "hiding" some more information (like how much they made together).

without that we cannot calculate the actual values.

all I can do is set up the equations expressing the given relations between the parts of the total :

a = amount Alberto made

b = amount Benjamin made

c = amount Carlota made

b = 3×a

c = 2×b = 2× 3×a = 6×a

that's it.

your see ? now we need something that "ties" all 3 together, an equation of all 3 variables, where we can use the first 2 equations (by substitution) and then solve for the remaining third variable.

and that is missing.

if it is something like "together they made x", then we would have

a + b + c = x

a + 3a + 6a = x

10a = x

a = x/10

b and c we get then from the first 2 equations by simply using the calculated value of a :

b = 3×(x/10) = 3x/10

c = 6×(x/10) = 6x/10 = 3x/5

The correct option is C. find the real range, find the interval width, and construct the frequency distribution.

To make the information easier to understand, frequency distributions are textured look which organise and present frequency counts. Absolute frequencies as well as frequency distributions, such as percentages or ratios, can be displayed in frequency distributions.

The real range is find by the following method-

The interval width is find by the following method-

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The correct question is-

The three steps for constructing a simple frequency distribution are -

Group of answer choices

A. find the observed range, find the interval width, and construct the frequency distribution

B. find the real range, count the scores, and construct the frequency distribution

C. find the real range, find the interval width, and construct the frequency distribution

D. all of the above

The given two planes 2x + 4y + 3z = 5 and x + 8y + 10z = 3 are perpendicular to each other.

According to the given question.

We have two planes

2x - 4y + 3z = 5

and,

x + 8y + 10z = 3

Since, two planes are perpenicular if

\(a_{1} a_{2} + b_{1} b_{2} + c_{1} c_{2} = 0\)

Where \(a_{1}\), \(b_{1}\) and \(c_{1}\) and \(a_{2}\), \(b_{2}\) and \(c_{2}\) are the direction ratios of planes.

And the two planes are parallel to each other if

\(\frac{a_{1} }{a_{2} } =\frac{b_{1} }{b_{2} } = \frac{c_{1} }{c_{2} }\)

Here, the direction ratios of plane 2x + 4y + 3z = 5 are 2, -4, and 3  and the direction ratios of plane x + 8y + 10z = 3 are 1, 8, and 10

Now,

2(1) + (-4)(8) + 3(10)

= 2 - 32 + 30

= 0

Since, the sum of the product of the direction ratios of  the two palnes is 0. Therefore, the given two planes 2x + 4y + 3z = 5 and x + 8y + 10z = 3 are perpendicular to each other.

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Answer:

pleasee reply me ...

you looking very gorgeous...

also h*t and s**y ..

Answer:

plz mark me as a brainelist

hope it helps you

Mayans had a number that was the zero, and it also worked as a place-holder. Babylonians didn't had a number zero, they had a place-holder that was kind of a zero, but it was not associated to the "nothingness".

Mayan numeric system was vigesimal (it used a base of 20) such that the symbols used are:

Shell = 0

dot = 1.

bar =  5.

So the number 0 has a unique symbol related to it. And they used it as a place-holder.

In the other hand, Babylonian's numbers are in base-60, and they technically don't have a zero. (They understand the idea of "nothingness" but they did not associate it to a number).

So while the Mayans had the number zero and used it as a palce-holder, the Babylonians didn't had a "zero" (Notice that later Babylonian's texts used a symbol as a place-holder, which was kinda of a zero, but they still didn't have the number "zero")

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Lim \(x - > 0 (1 - cos x)/(x^(2/3)) = (3/2) * 1(1/3) = (3/2)\)

To solve the limit:

\(lim x - > 0 (1 - cos x)/(x^(2/3))\)

We can use L'Hopital's rule:

\(lim x - > 0 (sin x)/(2/3 * x(-1/3))\)

\(= lim x - > 0 (sin x) * (3/2) * (x(1/3))\)

\(= (3/2) * lim x - > 0 (sin x)/(x)(1/3)\)

Now, we can use another property of limits:

lim x -> 0 sin x / x = 1

Hence, lim \(x - > 0 (1 - cos x)/(x^(2/3)) = (3/2) * 1(1/3) = (3/2)\)

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The number of miles in 4 weeks is 20 mules

From the question, we have the following parameters that can be used in our computation:

Stone runs 1 mile five times a week

This means that the rate is

Rate = 1 mile * 5 per week

So, we have

Rate = 5 miles per week

For 4 weeks, we have

Distance = 5 * 4

Evaluate

Distance = 20 miles

Hence, the distance is 20 miles

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