Brian flew a remote-controlled airplane through the air. At the highest point of its ascent, the airplane had traveled 25 feet in the air and 24 feet horizontally. What was the height of the airplane at that point? A 49 feet O B. 24 feet O C. 14 feet OD. 7 feet​

a). We have proved all the given conditions.

b). It is true that condition 3 holds for all regular languages L1 and L2.

(a) Regular languages L1 and L2 can be suggested as follows:

Let \(L_1={0^{(n+1)} | n\geq 0}\)

and

\(L_2={1^{(n+1)} | n\geq 0}\)

We have to prove three conditions:1. L1 ⊈ L2:

The given languages L1 and L2 both are regular but L1 does not contain any string that starts with 1.

Therefore, L1 and L2 are distinct.2. L2  L1:

The given languages L1 and L2 both are regular but L2 does not contain any string that starts with 0.

Therefore, L2 and L1 are distinct.3. (L1 ∪ L2)* = L1* ∪ L2*:

For proving this condition, we need to prove two things:

First, we need to prove that (L1 ∪ L2)* ⊆ L1* ∪ L2*.

It is clear that every string in L1* or L2* belongs to (L1 ∪ L2)*.

Thus, we have L1* ⊆ (L1 ∪ L2)* and L2* ⊆ (L1 ∪ L2)*.

Therefore, L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Second, we need to prove that L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Every string that belongs to L1* or L2* also belongs to (L1 ∪ L2)*.

Thus, we have L1* ∪ L2* ⊆ (L1 ∪ L2)*.

Therefore, (L1 ∪ L2)* = L1* ∪ L2*.

Therefore, we have proved all the given conditions.

(b)It is true that condition 3 holds for all regular languages L1 and L2.

This can be proved by using the fact that the union of regular languages is also a regular language and the Kleene star of a regular language is also a regular language.

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Answer:  \(\sqrt{26}\)

This is the same as writing sqrt(26) on a keyboard.

==============================================================

Explanation:

Start by focusing on the triangle on the right side. It has sides of 5 and 7, with some unknown hypotenuse. Use the pythagorean theorem to find the hypotenuse.

\(a^2+b^2 = c^2\\\\c = \sqrt{a^2+b^2}\\\\c = \sqrt{5^2+7^2}\\\\c = \sqrt{74}\\\\\)

That's the exact length of the hypotenuse of the triangle on the right, and it's also the height of the triangle on the left. We'll use the pythagorean theorem again to find x.

\(a^2+b^2 = c^2\\\\x^2+(\sqrt{74})^2 = 10^2\\\\x^2+74 = 100\\\\x^2 = 100-74\\\\x^2 = 26\\\\x = \sqrt{26}\\\\\)

Note that 26 = 2*13 doesn't have any perfect square factors, which means \(\sqrt{26}\) cannot be simplified further.

Answer:

y=-x+4

Step-by-step explanation:

2y-x=8

2y=-x+8

y=-x+4

\(15b \: + 20\)

\( = 5(3b + 4)\)

Answer:

5(3b + 4)

Hope you could understand.

If you have any query, feel free to ask.

Answer:

\( \longmapsto \: 15b + 20\)

\( \longmapsto \: 5(3b + 20)\)

When we solve for x and z if bc =ad, We can start by cross-multiplying to get rid of the denominators: d(a+bz) = b(c+d)z + ac, then the linear equation has infinitely many solutions for any values of x and z.

Multiplying both sides by (a + b)(d + c) to remove  the denominators, we get:

(a + bz)(d + c) = (c + dz)(a + b)

If z = 0, then we can substitute back into the original equation and solve for x:

a/b = (c - 1)/(1 - c).

thus, the solutions are:

If bc =ad, then the equation has infinitely many solutions for any values of x and z.

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Answer:

Step-by-step explanation:

so first you take 40 then musiply iy by 40

Answer:

Mark is currently 22 years old; if you add 8 years to 22, he will be 30 years old.

Step-by-step explanation:

hope this helps:) please mark brainliest.

Answer:

he would be 30

Step-by-step explanation:

i

Answer:

hello help

Step-by-step explanation:

Answer:

It's 100% 12

Step-by-step explanation:

The lump-sum distribution includes employer securities and the payer reported an amount in box 7.

A lump-sum distribution is when all of a plan participant's remaining balance from all of the employer's eligible plans of one kind are distributed or paid to them in one tax year (for example, pension, profit-sharing, or stock bonus plans).

The net unrealized appreciation (NUA) in employer securities is typically not subject to tax until you sell the securities, even if the lump-sum distribution includes employer securities and the payer reported a sum in box 7 of your Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc. for NUA in employer securities. You may, however, decide to include the NUA in your income in the year that you receive the securities.

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Solving systems of equations by elimination involves manipulating equations so that the variables may be canceled out, resulting in a simpler equation that can be solved. This method is used to solve systems of equations with two or more variables.

Solving systems of equations by elimination is a method of finding the solutions to systems of equations with two or more variables. To do this, the equations are manipulated so that the two variables can be canceled out, resulting in a simpler equation. This simpler equation can then be solved using basic arithmetic. Depending on the equations, different methods may be used to manipulate them, such as adding them together or subtracting one from the other. Once the variables have been canceled out, the resulting equation can be solved to find the solution. This method of solving systems of equations can be used for linear equations, quadratic equations, and even more complex systems of equations.

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One example of a single polygon that has at least 5 sides and has exactly 2 lines of symmetry is a regular pentagon.

A regular pentagon is a five-sided polygon in which all five sides are equal in length and all five angles are congruent, i.e., the same measure. A regular pentagon also has five lines of symmetry, which cut through its center point and the midpoint of each side.

However, we need a polygon with exactly 2 lines of symmetry. Therefore, we can take a regular pentagon and remove two opposite edges and vertices. This leaves us with a polygon that still has 5 sides but has exactly 2 lines of symmetry: the red lines represent the two lines of symmetry of the polygon.

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Answer:

no

Step-by-step explanation:

5 is a whole number 0.5 doesn't equal to 1 it is half of 1

Answer:

0.0274

Step-by-step explanation:

A z-score measures exactly how many standard deviations above or below the mean a data point is.

The z-score for a normal distribution is given by the formula
\(z = \dfrac{X - \mu}{\sigma}\\where\\\\X = data \;point}\\\mu = mean\\\sigma = standard\; deviation\)

Plugging in values:
X = 125
μ = 100
σ = 13

z = (125-100)/13 = 1.92308

We are asked to find the probability that the score exceeds 125

This is the same as P(z > 1.92308) which is the area to the right of z = 1.92308

P(z > 1.92308) = 0.0274 (from either the tables or calculator)

Answer:

The Latin dance club needs to raise $178.50 to buy costumes. The club has already raised $35.70, so they need to raise $178.50 - $35.70 = $142.80 more. If each person raises the same amount, then each person needs to raise $142.80 / 7 = $20.40.

Therefore, the inequality that shows how much money each of the 7 club members needs to raise is:  m > $20.40

Step-by-step explanation:

At a constant rate of 400 miles per hour travel, the plane would be travelling from 32000 feet above the land.

The speed of an object is the ratio of distance and time it takes for the object to travel that distance.

Mathematically,

S = D/T

where

S is velocity

D is the distance traveled or distance traveled

T is the time it takes to travel that distance

Velocity is considered a scalar quantity. A scalar size only has a size. It does not provide information about the direction of object movement.

If an object moves at a constant speed, it means that the object moves the same distance in the same time interval.

Acceleration of an object is the ratio of velocity and time. vector size. Vector quantities have both magnitude and direction.

Mathematics,

a = v/t

When an object is in motion, its acceleration is never zero.

When an object moves, it moves a constant distance over time. Therefore, body positions cannot be the same from the same coordinate system.

Given in the question:

First the plane was travelling at a constant rate of 250  miles per hour.

Initial height was 20000 feet

Now,

As the speed increases and travels at a constant rate of 400 miles per hour.

Now,

   (400 /250 ) × 20000

=  1.6 × 20000

= 32000 feet

Thus, At a constant rate of 400 miles per hour travel, the plane would be travelling from 32000 feet above the land.

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Answer:

D

Step-by-step explanation:

The formula for y=

y=(slope)x-(y intercept).

So, we are given -3 and -2 in the places-

y=(slope)-3x-(y intercept)-2

So, the answer is -3 and -2.

(D)

Answer: 57285

Step-by-step explanation:   I can't show the work digitally but all you do is multiply.

Répondre:

1 285 watts

Explication étape par étape:

La puissance est exprimée selon la formule;

power = travail effectué / temps

Puissance = Force * (distance / temps)

Depuis Vitesse = distance / temps

Puissance = Force * vitesse

Donné

Force = 2500N

Vitesse (en m / s) = 0,514 m / s

Obligatoire

Puissance

Remplacez la formule donnée;

Puissance = 2500 * 0,514

Puissance = 1,285Watts

Par conséquent, la puissance correspondante requise est de 1285 watts

(a) The expected number of board-feet of timber next year is 102.9. (b) The interest rate at the bank matters in deciding to cut the trees down now or in the future due to the opportunity cost of waiting and potential earnings from investing the proceeds. (c) In order for cutting the trees down next year to be a better choice than cutting them down now, the interest rate at the bank has to be lower.

(a) To calculate the expected number of board-feet of timber next year, we multiply the probabilities of each outcome by the corresponding timber quantity and sum them. With a 98% probability of growth and a 5% increase in timber, and a 2% probability of fire and no timber, the expected number of board-feet of timber next year would be: (0.98 * 100 * 1.05) + (0.02 * 0) = 102.9 board-feet.

(b) The interest rate at the bank matters in deciding to cut the trees down now or in the future because it represents the opportunity cost of waiting. By cutting the trees down now and selling the timber, you can invest the proceeds in the bank and earn interest over time. If the interest rate is high, the present value of the future timber may be lower compared to the immediate cash flow from selling the timber now, making it more favorable to cut the trees down earlier.

(c) In order for cutting the trees down next year to be a better choice than cutting them down now, the interest rate at the bank has to be lower. A lower interest rate implies that the present value of future cash flows (from selling the timber next year) is higher relative to the immediate cash flow (from selling the timber now). Therefore, a lower interest rate makes it more advantageous to delay cutting the trees and wait for them to grow, maximizing the forester's profit.

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Answer:

Those must-haves should include food, clothing, housing and insurance. And it also should include emergency and retirement savings, Luber said.

Step-by-step explanation:

hope this helped:)

brainliest for the brains:)

According to the information, the price change of $ 6 to $ 2 would generate an elasticity in the demand of 0.33

The price elasticity of demand is an economic term that refers to the measure used to show the amount demanded of a good or service to changes in the price of said good or service.

To find the demand elasticity we must perform the following mathematical procedure:

Price elasticity = (P1 + P2)/(Q1 + Q2) x (Q2 - Q1)/(P2 - P1)

Q1 = 5, p1 = 6

Q2 = 7, p2 = 2

PE = 8/12 x 2/-4 = - 0.33

According to the above, we can establish that the elasticity in demand with a price change of $ 6 to $ 2 would be 0.33.

Note: This Question is incomplete. Here is the complete information:

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False. The correlation coefficient can vary between -1 and 1, and it can be negative.

The correlation coefficient is a statistical measure that quantifies the strength and direction of the relationship between two variables. It ranges from -1 to 1, inclusive. A value of 1 indicates a perfect positive correlation, meaning that as one variable increases, the other variable increases proportionally. A value of -1 indicates a perfect negative correlation, meaning that as one variable increases, the other variable decreases proportionally. A correlation coefficient of 0 indicates no linear relationship between the variables.

Therefore, the statement that the correlation coefficient varies between 0 and 1 and can never be negative is false. The correlation coefficient can indeed be negative, indicating a negative relationship between the variables. It is important to note that the correlation coefficient only measures the strength and direction of the linear relationship between the variables and does not capture other types of relationships, such as non-linear or causal relationships.

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Answer:

Step-by-step explanation:

V(x) = x3 + 2x2 - 11x - 12

To factor, you want 3 numbers that multiply to give -12 (the constant term) and add to give 2 (coefficient of the x2 term).  The answer is 4, -3, and 1: (4)(-3)(1) = -12, 4 + (-3) + 1 = 2.  So the volume polynomial factors to:

V(x) = (x+4)(x-3)(x+1)

Now the volume of a rectangular box is:

V = Length*Width*Height = (x+4)(x-3)(x+1)

So let's pick height = (x+1) = 4.5  (you could pick any one of the three factors).

x+1 = 4.5

x = 3.5

Length = (x+4) = 3.5+4 = 7.5

Width = (x-3) = 3.5 - 3 = 0.5

The box's dimensions are 7.5 m by 0.5 m by 4.5 m

Answer: A

Step-by-step explanation: I would say A because the angle is greater than 90 degrees

Answer:

We have supplementary angles.

76 + 3x + 2 = 180

3x + 78 = 180

3x = 102

x = 34

Answer:

1. a worker who works for the company from home or somewhere else

2. Going to college to get a degree for your career.

3. teacher

4. False

5. job/occupation

6. There are plenty of jobs for x-ray technicians in the area.

7. shift supervisor (Not 100% sure)

8. working toward a goal

9. Health Sciences

10. True

11. at the competing company across the street (not sure like 30%)

12. student teaching in middle school

13. They work for someone else.

14. taking classes on how medical drugs interact with one another

15. outsourcing.

Step-by-step explanation:

Answer:

he was billed for 147 minutes

Step-by-step explanation:

I got it right