1. Relaciona cada situación con los conceptos básicos de la geometría. Explica tu respuesta. a. Una estrella en el cielo. b. Un rayo de luz. c. La superficie del agua en un lago. 2. Escriba falso o verdadero, según corresponda; luego represente gráficamente para justificar su respuesta. a. Dados dos puntos distintos, hay exactamente una recta que los contiene. b. Dos rectas que se intersectan determinan un plano. c. Tres puntos diferentes no colineales determinan un plano.

Answer:

I think option D

if u want explanation feel free to ask

please give me brainliest

Answer:

1. 1, 2, 3, 4, or 5

2. as long as it is -4, -5, -6, -7, and so on

Step-by-step explanation:

Clock hours are calculated by multiplying the number of hours spent in a program by the number of credits awarded. For example, a 3-credit course that meets for 3 hours per week would be 9 clock hours.

Clock hours are a measure of time spent in a program or course and are used to calculate the number of credits awarded. Clock hours are calculated by multiplying the number of hours spent in a program by the number of credits awarded. For example, a 3-credit course that meets for 3 hours per week would be 9 clock hours. This means that if the course is completed, the student would receive 3 credits for the course for the 9 clock hours of instruction that were completed. Clock hours can also be used to measure the amount of time spent in a program or class, such as a certificate program. In this case, the total number of clock hours would be the sum of all the hours spent in the program. Clock hours are also used to measure the amount of time spent on activities such as projects, research, and internships. In this case, the total number of clock hours would be the total number of hours spent on the activity. Clock hours are an important measure of the amount of time spent in a program and are used to determine the number of credits awarded upon completion.

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Answer:

15 cm²

Step-by-step explanation:

The formula for the area of a triangle:

area = 1/2 × a × b × sin(c)

where a = 6√2, b = 5, c = sin(45)

area = 1/2 × 5 × 6√2 × sin(45) = 15

Answer:

2S + J = 24000

Step-by-step explanation:

let Susan be S

let Jinan be J

they paid 24000

susan paid twice as muh as jinan did​

2S + J = 24000

therefore equation is

2S + J = 24000

Answer:

$5.00 for 1 day

Step-by-step explanation:

1 day is a unit, so its $5.00 for 1 day.

This graph represents a function Because it passes the vertical line test.

Let us first understand the Vertical Line Test.

In this test, we draw a few random vertical lines on a graph and check whether any one or more than one lines intersect the graph, no matter once or more.

If there exists a line that intersects the graph, we say the graph passes the vertical line test.

The vertical line test is a visual way to determine if a curve is a graph of a function or not. A function can only have one output, y, for each unique input, x.

Hence this graph passes the vertical line test because there are many vertical lines that intersect it.

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Answer: 2 bags

Step-by-step explanation:

First find the area of the yard.

The area given the units would be:

= Length * Width

= 45 * 55

= ‭2,475‬ ft²

Victor needs enough fertilizer to cover ‭2,475‬ft² but each bag covers only 1,250 ft².

The number of bags needed is therefore:

= ‭2,475‬ / 1,250

= 1.98

= 2 bags

If the given equations are true, then the value of x + z is 6.

Simultaneous equations or systems of equations are two or more equations in algebra that must be solved jointly. The number of equations must match the number of unknowns for a system to have a singular solution.

Consider the equations are true,

4x + 2y + 8z = 30                                                                    ------------(1)

3x + 2y + 7z = 24                                                                    ------------(2)

Now,

By subtracting equation (2) from equation (1) we get:

eq(1) - eq(2)

4x + 2y + 8z - ( 3x + 2y + 7z ) = 30 -24

4x + 2y + 8z - 3x - 2y - 7z = 6

( 4x - 3x ) + ( 2y - 2y ) + ( 8z - 7z ) = 6

x + 0 + z = 6

x + z =6

Therefore, assuming the equations to be true the value of x + z is equal to 6.

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The internal rate of return on the investment for Burgundy Basins is 13.33%.

The internal rate of return on the investment for Burgundy Basins represents the percentage return expected from the investment, which is 13.33% in this case. It indicates the rate at which the investment's net present value is zero, meaning it is expected to generate returns equal to its cost. This makes the investment financially attractive as it offers a return higher than the company's cost of capital.

Burgundy Basins, a sink manufacturer, is considering an average-risk investment worth $36 million. The investment is projected to generate a perpetual annual return of $4.8 million. To evaluate the attractiveness of the investment, the internal rate of return (IRR) is calculated. The IRR represents the rate at which the net present value of the investment becomes zero.

In this case, the IRR is determined to be 13.33%, indicating that the investment offers a return higher than its cost. This implies that the investment is financially viable and can potentially enhance the company's profitability. However, it's important to note that other factors such as market conditions and potential risks should also be taken into consideration before making a final decision.

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Answer:

length of the arc = 6.28 ft

Step-by-step explanation:

\(r = 3 \: ft \\ central \: angle \: ( \theta) = \frac{2\pi^{c} }{3} = 120 \degree \\ \\ l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ l = \frac{ 120 \degree}{360 \degree} \times 2 \times 3.14 \times 3\\ \\l = \frac{ 1}{3} \times 6.28 \times 3\\ \\ l = 6.28 \: ft \\ \)

The power of the signal \($x(t) = A_1e^{j\omega_1t}$\) is given by\($P = |A_1|^{2}$\) as per the concept of the complex-valued signal.

To compute the power of the signal \($x(t) = A_1e^{j\omega_1t}$\), where \($A_1$\) is a complex-valued constant, we need to calculate the average power over a period. The power of a complex-valued signal can be obtained by taking the magnitude squared of the signal. Let's compute the power:

The power of the signal is given by:

\(P = \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} |x(t)|^2 dt \\= \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} |A_1e^{j\omega_1t}|^2 dt \\\= \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} (A_1e^{j\omega_1t})(A_1^e^{-j\omega_1t}) dt \\= \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} A_1A_1^ dt \\)

Since is a complex number, its magnitude squared is equal to the product of the number and its complex conjugate. Therefore, we have:

\(P = \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} |A_1|^2 dt \\= |A_1|^2 \cdot \lim_{T\to\infty} \frac{1}{T}\int_{-T/2}^{T/2} dt \\= |A_1|^2 \cdot 1 \\= |A_1|^2 \\\end{align*}\)

Hence, the power of the signal \($x(t) = A_1e^{j\omega_1t}$\) is given by\($P = |A_1|^{2}$\).

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The complete question:

Compute power of signal \($x(t)=A_1 e^{j \omega_1 t}$\) where A is complex-valued

Answer:

3 units to the right 5 units up

Step-by-step explanation:

is this what you were looking for?

Answer:

.........................................

Step-by-step explanation:

.............................................................................................................................................................................................

Answer:

that one is already correct

Factor by grouping: 16x³ +28x² - 28x - 49 = 0 is  (4x² - 7) (4x - 7) = 0

Large polynomials can be divided into groups based on a common factor. As a result, we may factor each distinct group and then merge like words. We refer to this as factoring by grouping.

We have the equation,

16x³ +28x² - 28x - 49 = 0

In order to solve the equation by using factor by grouping:

We find common terms in between,

So, we arrange the terms,

16x³ +28x² - 28x - 49 = 0

4x² (4x - 7) -7 (4x - 7) = 0

Here, we have common term (4x-7).

Factor out the common binomial.

(4x² - 7) (4x - 7) = 0

Therefore, (4x² - 7) (4x - 7) = 0 is the factor.

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Answer:

22

Step-by-step explanation:

5(m+2)

⇒5(2  2/5 + 2)

⇒5(12/5+2)

by taking lcm,

⇒5(12/5 + 2×5/1×5)

⇒5(12/5+10/5)

⇒5(12+10 /5)

⇒5(22/5)

⇒5×22 /5

⇒110/5

⇒22

hope it helps you!

Answer:

24

Step-by-step explanation:

Do i need to explain ??????

The response y(t) graphically, we can first plot the individual functions h(t) and x(t) on a graph, and then determine their convolution to obtain y(t). Let's go step by step:

Plotting h(t):

The function h(t) is defined as h(t) = [u(t-1) - u(t-4)].

The unit step function u(t-a) is 0 for t < a and 1 for t ≥ a. Based on this, we can plot h(t) as follows:

For t < 1, h(t) = [0 - 0] = 0

For 1 ≤ t < 4, h(t) = [1 - 0] = 1

For t ≥ 4, h(t) = [1 - 1] = 0

So, h(t) is 0 for t < 1 and t ≥ 4, and it jumps up to 1 between t = 1 and t = 4. Plotting h(t) on a graph will show a step function with a jump from 0 to 1 at t = 1.

Plotting x(t):

The function x(t) is defined as x(t) = t[u(t) - u(t-2)].

For t < 0, both u(t) and u(t-2) are 0, so x(t) = t(0 - 0) = 0.

For 0 ≤ t < 2, u(t) = 1 and u(t-2) = 0, so x(t) = t(1 - 0) = t.

For t ≥ 2, both u(t) and u(t-2) are 1, so x(t) = t(1 - 1) = 0.

So, x(t) is 0 for t < 0 and t ≥ 2, and it increases linearly from 0 to t for 0 ≤ t < 2. Plotting x(t) on a graph will show a line segment starting from the origin and increasing linearly with a slope of 1 until t = 2, after which it remains at 0.

Obtaining y(t):

To obtain y(t), we need to convolve h(t) and x(t). Convolution is an operation that involves integrating the product of two functions over their overlapping ranges.

In this case, the convolution integral can be simplified because h(t) is only non-zero between t = 1 and t = 4, and x(t) is only non-zero between t = 0 and t = 2.

The convolution y(t) = h(t) * x(t) can be written as:

y(t) = ∫[1,4] h(τ) x(t - τ) dτ

For t < 1 or t > 4, y(t) will be 0 because there is no overlap between h(t) and x(t).

For 1 ≤ t < 2, the convolution integral simplifies to:

y(t) = ∫[1,t+1] 1(0) dτ = 0

For 2 ≤ t < 4, the convolution integral simplifies to:

y(t) = ∫[t-2,2] 1(t - τ) dτ = ∫[t-2,2] (t - τ) dτ

Evaluating this integral, we get:

\(y(t) = 2t - t^2 - (t - 2)^2 / 2,\) for 2 ≤ t < 4

For t ≥ 4, y(t) will be 0 again.

Maximum value of y(t):

To find the value of t at which y(t) reaches its maximum value, we need to examine the expression for y(t) within the valid range 2 ≤ t < 4. We can graphically determine the maximum by plotting y(t) within this range and identifying the peak.

Plotting y(t) within the range 2 ≤ t < 4 will give you a curve that reaches a maximum at a certain value of t. By visually inspecting the graph, you can determine the specific value of t at which y(t) reaches its maximum.

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Answer:

acute triangle

Step-by-step explanation:

If an angle measures less than 90 degrees it is an acute angle

A triangle with all acute angles is an acute triangle

Therefore , the solution of the given problem of equation comes out to be $88.

A mathematical formula between the two statements is employed to denote equality when the equivalent letter (=) is utilized. The equivalence of numerous mathematical variables is demonstrated using algebraic equations, which are statements of fact. For instance, the expression data d + 6 = 12 separates the values document d + 6 or 12 with an equal sign. One can quantify the number of syllables that each sides of each symbol corresponds to. A symbol's meaning usually runs counter to itself.

Here,

First, it takes Phil 3 hours do carve a giant boomerang after carving a little one in just 2 hours. He has 24 hours must carve as many boomerangs as possible. Cath can embellish ten boomerangs. Assume that x represents the quantity of small tomahawks and y represents the quantity of giant boomerangs. In light of the facts provided, the following expression can be created.

Here,

2x + 3y = 24 hours in equation 1.

Eq. 2: x + y = 10 

Take y = 10 - x from equation 2 as equation 3.

Step 2: We obtain by substituting equation 3 for equation 1

2x + 3y equals 2x + 3(10 - x) = 24, 2x + 30 -3x equals 24, -1x equals -6, and therefore x = 6.

In equation 2, change x to 6 to make

Since x + y = 6 + y = 10, y = 4

Therefore, they ought to produce four huge and six mini boomerangs.

Step 3: Next, we determine how much money they will earn. Each little boomerang will bring in $8, while each big one will bring in $10. So

4 x 10 for each huge boomerang and 6 x 8 for each mini boomerang

=(6 × 8)+ (4 × 10) = 48 + 40 = $88.

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y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Given,

y-intercept 4 and slope -1/5

Now y=-1/5x+4

Hence y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

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We would add and subtract about three standard deviations from the sample proportion to get a 99.7% (nearly full) confidence interval for the real population proportion.

A confidence interval is a range of estimates for an unknown quantity in frequentist statistics.

The most frequent confidence level is 95%, but other levels, such as 90% or 99%, are infrequently used for generating confidence intervals.

To obtain a 99.7% (almost complete) confidence range for the real population proportion, you would add and deduct around three standard deviations from the sample proportion.

A confidence interval is a range of values that are bound by the statistic's mean and that is likely to include an unidentified population parameter.

The proportion of probability, or certainty, that the confidence interval would include the real population parameter when a random sample is drawn numerous times is referred to as the confidence level.

Therefore we would add and subtract about three standard deviations from the sample proportion to get a 99.7% (nearly full) confidence interval for the real population proportion.

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Correct question:
To obtain a 99.7% (virtually all-encompassing) confidence interval for the true population proportion, you would add and subtract about __________ standard deviations to/from the sample proportion.

The measure of the missing side lengths of the triangle is adjacent side = 5 and hypotenuse =  5√2.

What are trigonometric ratios?

The six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec). In geometry, trigonometry is a branch of mathematics that deals with the sides and angles of a right-angled triangle.

To find the side of a right triangle:

A right-angle triangle has one of its angles as 90 degrees.

Therefore,

using trigonometric ratios,

tan 45 = opposite/adjacent

tan 45 = opposite / 5

opposite side = (tan 45)  * 5

opposite side = 1 * 5 = 5

Therefore,

adjacent side = 5

sin 45 = opposite / hypotenuse

1/√2  = 5 / hypotenuse

hypotenuse = 5√2 /1

hypotenuse =  5√2

Hence, the missing side lengths of the triangle are adjacent side = 5 and hypotenuse =  5√2.

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Answer:

$1917.60

Step-by-step explanation:

Interest = Principal x Rate x Time

103.55 = (.05)(13/12)P

103.55 = .054P

P = 1917.60

The probability that a random email both is not a spam email and contains the words "get rich fast" is 0.8%.

Without more information about the prevalence of spam emails or the frequency of the phrase "get rich fast" in emails, it's difficult to provide an accurate numerical probability.

However, in general, we can say that the probability of a random email not being a spam email depends on the proportion of spam emails in the overall population of emails. Let's say, for example, that 20% of all emails are spam. Then the probability of a random email not being a spam email would be 1 - 0.2 = 0.8, or 80%.

The probability of a random email containing the phrase "get rich fast" would depend on how frequently this phrase appears in emails. If we assume that this is a relatively rare phrase and appears in only 1% of all emails, then the probability of a random email containing the phrase would be 0.01, or 1%.

To find the probability that a random email both is not a spam email and contains the words "get rich fast," we would multiply the two probabilities:

0.8 (probability of not being a spam email) * 0.01 (probability of containing the phrase) = 0.008, or 0.8%.

So, the probability that a random email both is not a spam email and contains the words "get rich fast" is 0.8%.

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The maximum number of electrons that can fill a 4d sublevel is ten (10). Electrons are arranged in shells and subshells in an atom's electronic configuration.

In an atom, electrons orbit the nucleus in different shells (also known as energy levels) depending on the amount of energy they possess.

Each shell has a set number of subshells, and each subshell has a limited number of orbitals and electrons.

The 4th energy level is the 4th shell, which has four subshells:

4s, 4p, 4d, and 4f.

Since the 4d sublevel has five orbitals, it can hold ten electrons (with two electrons per orbital).

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Answer:

It is 2/15

Step-by-step explanation:

\( = \sqrt{ \frac{1}{ {6}^{2} } - \frac{1}{ {10}^{2} } } \\ \\ = \sqrt{ \frac{4}{225} } \\ \\ = \frac{ \sqrt{4} }{ \sqrt{225} } \\ \\ = \frac{2}{15} \)

The shadow of the tree is 9 feet long.

The length of the shadow is determined by the height of the object casting the shadow and the angle of the sun. The angle of the sun is indirectly proportional to the length of the shadow. The taller the object, the longer the shadow. The angle of the sun also affects the length of the shadow. When the sun is high in the sky, the shadows are shorter. When the sun is lower on the horizon, the shadows are longer.

Assuming that the tree is standing next to the telephone pole, the shadow of the tree would be 15 feet long. The shadow of the telephone pole is 24 feet long, so the difference between the two shadows is 9 feet. The tree is 9 feet shorter than the telephone pole, so the tree's shadow is 9 feet shorter than the telephone pole's shadow.

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Answer:

Step-by-step explanation:

\(A=2\cdot\pi R^2+ 2\pi R\cdot H\\\\H=4\,m\\R=2\,m\\\\A=2\cdot\pi\cdot 2^2+2\pi \cdot2\cdot4=8\pi+16\pi=24\pi=75.398223....\approx75.398\ m^2\)